Fixed-Coordinate Polynomial Partials and Ordered Gradients

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This question bank has corresponding bilingual step-by-step derivations. Source candidate and English ai_candidate states are retained. AI review, finite computation and Lean formal proof are labelled separately.

batch-20261013-advance-20261024-r04-partial-derivative-foundations · 2026-10-13 · 100 questions

This English edition is an AI candidate and does not yet have an OCME Atlas (GPT-6) Twin closure receipt.

1. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[-12, -2, -3, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=-2, y=-3. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([-12, -2, -3, 1, -1, -1], -2, -3, -3)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-12, -2, -3, 1, -1, -1], -2, -3, -3).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

2. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[-11, -1, -2, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=-1, y=-2. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([-11, -1, -2, 1, 0, -1], -1, -2, -3)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-11, -1, -2, 1, 0, -1], -1, -2, -3).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

3. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[-10, 0, -1, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=0, y=-1. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([-10, 0, -1, 1, 1, -1], 0, -1, -1)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-10, 0, -1, 1, 1, -1], 0, -1, -1).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

4. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[-9, 1, 0, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=1, y=0. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([-9, 1, 0, 1, -1, -1], 1, 0, 3)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-9, 1, 0, 1, -1, -1], 1, 0, 3).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

5. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[-8, 2, 1, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=2, y=1. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([-8, 2, 1, 1, 0, -1], 2, 1, 6)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-8, 2, 1, 1, 0, -1], 2, 1, 6).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

6. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[-7, -2, 2, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=-2, y=2. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([-7, -2, 2, 1, 1, -1], -2, 2, -4)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-7, -2, 2, 1, 1, -1], -2, 2, -4).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

7. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[-6, -1, 3, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=-1, y=3. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([-6, -1, 3, 1, -1, -1], -1, 3, -6)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-6, -1, 3, 1, -1, -1], -1, 3, -6).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

8. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[-5, 0, -3, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=0, y=-3. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([-5, 0, -3, 1, 0, -1], 0, -3, 0)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-5, 0, -3, 1, 0, -1], 0, -3, 0).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

9. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[-4, 1, -2, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=1, y=-2. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([-4, 1, -2, 1, 1, -1], 1, -2, 1)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-4, 1, -2, 1, 1, -1], 1, -2, 1).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

10. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[-3, 2, -1, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=2, y=-1. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([-3, 2, -1, 1, -1, -1], 2, -1, 7)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-3, 2, -1, 1, -1, -1], 2, -1, 7).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

11. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[-2, -2, 0, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=-2, y=0. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([-2, -2, 0, 1, 0, -1], -2, 0, -6)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-2, -2, 0, 1, 0, -1], -2, 0, -6).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

12. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[-1, -1, 1, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=-1, y=1. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([-1, -1, 1, 1, 1, -1], -1, 1, -2)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-1, -1, 1, 1, 1, -1], -1, 1, -2).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

13. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[0, 0, 2, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=0, y=2. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([0, 0, 2, 1, -1, -1], 0, 2, -2)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([0, 0, 2, 1, -1, -1], 0, 2, -2).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

14. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[1, 1, 3, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=1, y=3. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([1, 1, 3, 1, 0, -1], 1, 3, 3)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([1, 1, 3, 1, 0, -1], 1, 3, 3).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

15. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[2, 2, -3, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=2, y=-3. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([2, 2, -3, 1, 1, -1], 2, -3, 3)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([2, 2, -3, 1, 1, -1], 2, -3, 3).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

16. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[3, -2, -2, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=-2, y=-2. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([3, -2, -2, 1, -1, -1], -2, -2, -4)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([3, -2, -2, 1, -1, -1], -2, -2, -4).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

17. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[4, -1, -1, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=-1, y=-1. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([4, -1, -1, 1, 0, -1], -1, -1, -3)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([4, -1, -1, 1, 0, -1], -1, -1, -3).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

18. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[5, 0, 0, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=0, y=0. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([5, 0, 0, 1, 1, -1], 0, 0, 0)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([5, 0, 0, 1, 1, -1], 0, 0, 0).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

19. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[6, 1, 1, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=1, y=1. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([6, 1, 1, 1, -1, -1], 1, 1, 2)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([6, 1, 1, 1, -1, -1], 1, 1, 2).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

20. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[7, 2, 2, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=2, y=2. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([7, 2, 2, 1, 0, -1], 2, 2, 6)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([7, 2, 2, 1, 0, -1], 2, 2, 6).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

21. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[8, -2, 3, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=-2, y=3. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([8, -2, 3, 1, 1, -1], -2, 3, -3)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([8, -2, 3, 1, 1, -1], -2, 3, -3).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

22. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[9, -1, -3, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=-1, y=-3. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([9, -1, -3, 1, -1, -1], -1, -3, 0)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([9, -1, -3, 1, -1, -1], -1, -3, 0).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

23. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[10, 0, -2, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=0, y=-2. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([10, 0, -2, 1, 0, -1], 0, -2, 0)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([10, 0, -2, 1, 0, -1], 0, -2, 0).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

24. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[11, 1, -1, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=1, y=-1. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([11, 1, -1, 1, 1, -1], 1, -1, 2)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([11, 1, -1, 1, 1, -1], 1, -1, 2).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

25. Differentiate in the First Coordinate while Holding the Second Fixed

Use coefficients=[12, 2, 0, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=2, y=0. Give (coefficients,x,y,c_x+2*c_xx*x+c_xy*y).

View answer and explanation

([12, 2, 0, 1, -1, -1], 2, 0, 6)

Differentiate only the x-dependent monomials while treating y as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([12, 2, 0, 1, -1, -1], 2, 0, 6).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-x · candidate

26. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[-12, -2, -3, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=-2, y=-3. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([-12, -2, -3, 1, -1, -1], -2, -3, 5)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-12, -2, -3, 1, -1, -1], -2, -3, 5).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

27. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[-11, -1, -2, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=-1, y=-2. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([-11, -1, -2, 1, 0, -1], -1, -2, 2)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-11, -1, -2, 1, 0, -1], -1, -2, 2).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

28. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[-10, 0, -1, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=0, y=-1. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([-10, 0, -1, 1, 1, -1], 0, -1, 1)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-10, 0, -1, 1, 1, -1], 0, -1, 1).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

29. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[-9, 1, 0, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=1, y=0. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([-9, 1, 0, 1, -1, -1], 1, 0, -1)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-9, 1, 0, 1, -1, -1], 1, 0, -1).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

30. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[-8, 2, 1, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=2, y=1. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([-8, 2, 1, 1, 0, -1], 2, 1, -1)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-8, 2, 1, 1, 0, -1], 2, 1, -1).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

31. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[-7, -2, 2, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=-2, y=2. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([-7, -2, 2, 1, 1, -1], -2, 2, -4)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-7, -2, 2, 1, 1, -1], -2, 2, -4).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

32. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[-6, -1, 3, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=-1, y=3. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([-6, -1, 3, 1, -1, -1], -1, 3, -2)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-6, -1, 3, 1, -1, -1], -1, 3, -2).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

33. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[-5, 0, -3, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=0, y=-3. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([-5, 0, -3, 1, 0, -1], 0, -3, 3)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-5, 0, -3, 1, 0, -1], 0, -3, 3).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

34. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[-4, 1, -2, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=1, y=-2. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([-4, 1, -2, 1, 1, -1], 1, -2, 3)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-4, 1, -2, 1, 1, -1], 1, -2, 3).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

35. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[-3, 2, -1, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=2, y=-1. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([-3, 2, -1, 1, -1, -1], 2, -1, -1)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-3, 2, -1, 1, -1, -1], 2, -1, -1).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

36. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[-2, -2, 0, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=-2, y=0. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([-2, -2, 0, 1, 0, -1], -2, 0, 0)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-2, -2, 0, 1, 0, -1], -2, 0, 0).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

37. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[-1, -1, 1, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=-1, y=1. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([-1, -1, 1, 1, 1, -1], -1, 1, -2)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-1, -1, 1, 1, 1, -1], -1, 1, -2).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

38. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[0, 0, 2, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=0, y=2. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([0, 0, 2, 1, -1, -1], 0, 2, -2)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([0, 0, 2, 1, -1, -1], 0, 2, -2).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

39. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[1, 1, 3, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=1, y=3. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([1, 1, 3, 1, 0, -1], 1, 3, -3)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([1, 1, 3, 1, 0, -1], 1, 3, -3).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

40. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[2, 2, -3, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=2, y=-3. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([2, 2, -3, 1, 1, -1], 2, -3, 5)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([2, 2, -3, 1, 1, -1], 2, -3, 5).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

41. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[3, -2, -2, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=-2, y=-2. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([3, -2, -2, 1, -1, -1], -2, -2, 4)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([3, -2, -2, 1, -1, -1], -2, -2, 4).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

42. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[4, -1, -1, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=-1, y=-1. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([4, -1, -1, 1, 0, -1], -1, -1, 1)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([4, -1, -1, 1, 0, -1], -1, -1, 1).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

43. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[5, 0, 0, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=0, y=0. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([5, 0, 0, 1, 1, -1], 0, 0, 0)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([5, 0, 0, 1, 1, -1], 0, 0, 0).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

44. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[6, 1, 1, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=1, y=1. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([6, 1, 1, 1, -1, -1], 1, 1, -2)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([6, 1, 1, 1, -1, -1], 1, 1, -2).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

45. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[7, 2, 2, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=2, y=2. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([7, 2, 2, 1, 0, -1], 2, 2, -2)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([7, 2, 2, 1, 0, -1], 2, 2, -2).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

46. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[8, -2, 3, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=-2, y=3. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([8, -2, 3, 1, 1, -1], -2, 3, -5)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([8, -2, 3, 1, 1, -1], -2, 3, -5).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

47. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[9, -1, -3, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=-1, y=-3. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([9, -1, -3, 1, -1, -1], -1, -3, 4)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([9, -1, -3, 1, -1, -1], -1, -3, 4).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

48. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[10, 0, -2, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=0, y=-2. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([10, 0, -2, 1, 0, -1], 0, -2, 2)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([10, 0, -2, 1, 0, -1], 0, -2, 2).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

49. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[11, 1, -1, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=1, y=-1. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([11, 1, -1, 1, 1, -1], 1, -1, 2)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([11, 1, -1, 1, 1, -1], 1, -1, 2).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

50. Differentiate in the Second Coordinate while Holding the First Fixed

Use coefficients=[12, 2, 0, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. Evaluate at x=2, y=0. Give (coefficients,x,y,c_y+c_xy*x+2*c_yy*y).

View answer and explanation

([12, 2, 0, 1, -1, -1], 2, 0, -2)

Differentiate only the y-dependent monomials while treating x as constant. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([12, 2, 0, 1, -1, -1], 2, 0, -2).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-partial-y · candidate

51. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[-12, -2, -3, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=-2, y=-3. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([-12, -2, -3, 1, -1, -1], -2, -3, [-3, 5])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-12, -2, -3, 1, -1, -1], -2, -3, [-3, 5]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

52. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[-11, -1, -2, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=-1, y=-2. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([-11, -1, -2, 1, 0, -1], -1, -2, [-3, 2])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-11, -1, -2, 1, 0, -1], -1, -2, [-3, 2]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

53. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[-10, 0, -1, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=0, y=-1. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([-10, 0, -1, 1, 1, -1], 0, -1, [-1, 1])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-10, 0, -1, 1, 1, -1], 0, -1, [-1, 1]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

54. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[-9, 1, 0, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=1, y=0. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([-9, 1, 0, 1, -1, -1], 1, 0, [3, -1])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-9, 1, 0, 1, -1, -1], 1, 0, [3, -1]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

55. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[-8, 2, 1, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=2, y=1. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([-8, 2, 1, 1, 0, -1], 2, 1, [6, -1])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-8, 2, 1, 1, 0, -1], 2, 1, [6, -1]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

56. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[-7, -2, 2, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=-2, y=2. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([-7, -2, 2, 1, 1, -1], -2, 2, [-4, -4])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-7, -2, 2, 1, 1, -1], -2, 2, [-4, -4]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

57. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[-6, -1, 3, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=-1, y=3. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([-6, -1, 3, 1, -1, -1], -1, 3, [-6, -2])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-6, -1, 3, 1, -1, -1], -1, 3, [-6, -2]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

58. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[-5, 0, -3, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=0, y=-3. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([-5, 0, -3, 1, 0, -1], 0, -3, [0, 3])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-5, 0, -3, 1, 0, -1], 0, -3, [0, 3]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

59. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[-4, 1, -2, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=1, y=-2. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([-4, 1, -2, 1, 1, -1], 1, -2, [1, 3])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-4, 1, -2, 1, 1, -1], 1, -2, [1, 3]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

60. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[-3, 2, -1, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=2, y=-1. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([-3, 2, -1, 1, -1, -1], 2, -1, [7, -1])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-3, 2, -1, 1, -1, -1], 2, -1, [7, -1]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

61. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[-2, -2, 0, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=-2, y=0. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([-2, -2, 0, 1, 0, -1], -2, 0, [-6, 0])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-2, -2, 0, 1, 0, -1], -2, 0, [-6, 0]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

62. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[-1, -1, 1, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=-1, y=1. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([-1, -1, 1, 1, 1, -1], -1, 1, [-2, -2])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-1, -1, 1, 1, 1, -1], -1, 1, [-2, -2]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

63. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[0, 0, 2, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=0, y=2. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([0, 0, 2, 1, -1, -1], 0, 2, [-2, -2])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([0, 0, 2, 1, -1, -1], 0, 2, [-2, -2]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

64. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[1, 1, 3, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=1, y=3. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([1, 1, 3, 1, 0, -1], 1, 3, [3, -3])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([1, 1, 3, 1, 0, -1], 1, 3, [3, -3]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

65. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[2, 2, -3, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=2, y=-3. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([2, 2, -3, 1, 1, -1], 2, -3, [3, 5])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([2, 2, -3, 1, 1, -1], 2, -3, [3, 5]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

66. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[3, -2, -2, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=-2, y=-2. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([3, -2, -2, 1, -1, -1], -2, -2, [-4, 4])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([3, -2, -2, 1, -1, -1], -2, -2, [-4, 4]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

67. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[4, -1, -1, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=-1, y=-1. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([4, -1, -1, 1, 0, -1], -1, -1, [-3, 1])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([4, -1, -1, 1, 0, -1], -1, -1, [-3, 1]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

68. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[5, 0, 0, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=0, y=0. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([5, 0, 0, 1, 1, -1], 0, 0, [0, 0])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([5, 0, 0, 1, 1, -1], 0, 0, [0, 0]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

69. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[6, 1, 1, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=1, y=1. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([6, 1, 1, 1, -1, -1], 1, 1, [2, -2])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([6, 1, 1, 1, -1, -1], 1, 1, [2, -2]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

70. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[7, 2, 2, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=2, y=2. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([7, 2, 2, 1, 0, -1], 2, 2, [6, -2])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([7, 2, 2, 1, 0, -1], 2, 2, [6, -2]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

71. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[8, -2, 3, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=-2, y=3. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([8, -2, 3, 1, 1, -1], -2, 3, [-3, -5])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([8, -2, 3, 1, 1, -1], -2, 3, [-3, -5]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

72. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[9, -1, -3, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=-1, y=-3. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([9, -1, -3, 1, -1, -1], -1, -3, [0, 4])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([9, -1, -3, 1, -1, -1], -1, -3, [0, 4]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

73. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[10, 0, -2, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=0, y=-2. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([10, 0, -2, 1, 0, -1], 0, -2, [0, 2])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([10, 0, -2, 1, 0, -1], 0, -2, [0, 2]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

74. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[11, 1, -1, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=1, y=-1. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([11, 1, -1, 1, 1, -1], 1, -1, [2, 2])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([11, 1, -1, 1, 1, -1], 1, -1, [2, 2]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

75. Collect the Two Coordinate Partials in Their Declared Order

Use coefficients=[12, 2, 0, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. x=2, y=0. Give (coefficients,x,y,[partial_x,partial_y]) in this fixed real coordinate model.

View answer and explanation

([12, 2, 0, 1, -1, -1], 2, 0, [6, -2])

Compute the two partials separately and collect them in x-then-y order. This ordered coordinate calculation does not establish a general differentiability theorem. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([12, 2, 0, 1, -1, -1], 2, 0, [6, -2]).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-gradient · candidate

76. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[-12, -2, -3, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=-2, evaluation x=-3. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([-12, -2, -3, 1, -1, -1], -2, [-10, 0, 1], [0, 2], -3, -6)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-12, -2, -3, 1, -1, -1], -2, [-10, 0, 1], [0, 2], -3, -6).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

77. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[-11, -1, -2, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=-1, evaluation x=-2. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([-11, -1, -2, 1, 0, -1], -1, [-10, -1, 1], [-1, 2], -2, -5)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-11, -1, -2, 1, 0, -1], -1, [-10, -1, 1], [-1, 2], -2, -5).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

78. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[-10, 0, -1, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=0, evaluation x=-1. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([-10, 0, -1, 1, 1, -1], 0, [-10, 0, 1], [0, 2], -1, -2)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-10, 0, -1, 1, 1, -1], 0, [-10, 0, 1], [0, 2], -1, -2).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

79. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[-9, 1, 0, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=1, evaluation x=0. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([-9, 1, 0, 1, -1, -1], 1, [-10, 0, 1], [0, 2], 0, 0)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-9, 1, 0, 1, -1, -1], 1, [-10, 0, 1], [0, 2], 0, 0).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

80. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[-8, 2, 1, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=2, evaluation x=1. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([-8, 2, 1, 1, 0, -1], 2, [-10, 2, 1], [2, 2], 1, 4)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-8, 2, 1, 1, 0, -1], 2, [-10, 2, 1], [2, 2], 1, 4).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

81. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[-7, -2, 2, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=-2, evaluation x=2. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([-7, -2, 2, 1, 1, -1], -2, [-15, -4, 1], [-4, 2], 2, 0)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-7, -2, 2, 1, 1, -1], -2, [-15, -4, 1], [-4, 2], 2, 0).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

82. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[-6, -1, 3, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=-1, evaluation x=3. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([-6, -1, 3, 1, -1, -1], -1, [-10, 0, 1], [0, 2], 3, 6)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-6, -1, 3, 1, -1, -1], -1, [-10, 0, 1], [0, 2], 3, 6).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

83. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[-5, 0, -3, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=0, evaluation x=-3. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([-5, 0, -3, 1, 0, -1], 0, [-5, 0, 1], [0, 2], -3, -6)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-5, 0, -3, 1, 0, -1], 0, [-5, 0, 1], [0, 2], -3, -6).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

84. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[-4, 1, -2, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=1, evaluation x=-2. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([-4, 1, -2, 1, 1, -1], 1, [-7, 2, 1], [2, 2], -2, -2)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-4, 1, -2, 1, 1, -1], 1, [-7, 2, 1], [2, 2], -2, -2).

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Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

85. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[-3, 2, -1, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=2, evaluation x=-1. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([-3, 2, -1, 1, -1, -1], 2, [-9, 0, 1], [0, 2], -1, -2)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-3, 2, -1, 1, -1, -1], 2, [-9, 0, 1], [0, 2], -1, -2).

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Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

86. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[-2, -2, 0, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=-2, evaluation x=0. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([-2, -2, 0, 1, 0, -1], -2, [-6, -2, 1], [-2, 2], 0, -2)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-2, -2, 0, 1, 0, -1], -2, [-6, -2, 1], [-2, 2], 0, -2).

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Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

87. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[-1, -1, 1, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=-1, evaluation x=1. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([-1, -1, 1, 1, 1, -1], -1, [-3, -2, 1], [-2, 2], 1, 0)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([-1, -1, 1, 1, 1, -1], -1, [-3, -2, 1], [-2, 2], 1, 0).

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Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

88. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[0, 0, 2, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=0, evaluation x=2. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([0, 0, 2, 1, -1, -1], 0, [0, 0, 1], [0, 2], 2, 4)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([0, 0, 2, 1, -1, -1], 0, [0, 0, 1], [0, 2], 2, 4).

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Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

89. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[1, 1, 3, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=1, evaluation x=3. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([1, 1, 3, 1, 0, -1], 1, [3, 1, 1], [1, 2], 3, 7)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([1, 1, 3, 1, 0, -1], 1, [3, 1, 1], [1, 2], 3, 7).

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Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

90. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[2, 2, -3, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=2, evaluation x=-3. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([2, 2, -3, 1, 1, -1], 2, [-8, 4, 1], [4, 2], -3, -2)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([2, 2, -3, 1, 1, -1], 2, [-8, 4, 1], [4, 2], -3, -2).

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Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

91. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[3, -2, -2, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=-2, evaluation x=-2. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([3, -2, -2, 1, -1, -1], -2, [3, 0, 1], [0, 2], -2, -4)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([3, -2, -2, 1, -1, -1], -2, [3, 0, 1], [0, 2], -2, -4).

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Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

92. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[4, -1, -1, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=-1, evaluation x=-1. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([4, -1, -1, 1, 0, -1], -1, [4, -1, 1], [-1, 2], -1, -3)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([4, -1, -1, 1, 0, -1], -1, [4, -1, 1], [-1, 2], -1, -3).

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Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

93. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[5, 0, 0, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=0, evaluation x=0. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([5, 0, 0, 1, 1, -1], 0, [5, 0, 1], [0, 2], 0, 0)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([5, 0, 0, 1, 1, -1], 0, [5, 0, 1], [0, 2], 0, 0).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

94. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[6, 1, 1, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=1, evaluation x=1. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([6, 1, 1, 1, -1, -1], 1, [6, 0, 1], [0, 2], 1, 2)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([6, 1, 1, 1, -1, -1], 1, [6, 0, 1], [0, 2], 1, 2).

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Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

95. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[7, 2, 2, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=2, evaluation x=2. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([7, 2, 2, 1, 0, -1], 2, [7, 2, 1], [2, 2], 2, 6)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([7, 2, 2, 1, 0, -1], 2, [7, 2, 1], [2, 2], 2, 6).

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Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

96. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[8, -2, 3, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=-2, evaluation x=3. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([8, -2, 3, 1, 1, -1], -2, [-2, -4, 1], [-4, 2], 3, 2)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([8, -2, 3, 1, 1, -1], -2, [-2, -4, 1], [-4, 2], 3, 2).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

97. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[9, -1, -3, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=-1, evaluation x=-3. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([9, -1, -3, 1, -1, -1], -1, [11, 0, 1], [0, 2], -3, -6)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([9, -1, -3, 1, -1, -1], -1, [11, 0, 1], [0, 2], -3, -6).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

98. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[10, 0, -2, 1, 0, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=0, evaluation x=-2. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([10, 0, -2, 1, 0, -1], 0, [10, 0, 1], [0, 2], -2, -4)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([10, 0, -2, 1, 0, -1], 0, [10, 0, 1], [0, 2], -2, -4).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

99. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[11, 1, -1, 1, 1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=1, evaluation x=-1. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([11, 1, -1, 1, 1, -1], 1, [9, 2, 1], [2, 2], -1, 0)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([11, 1, -1, 1, 1, -1], 1, [9, 2, 1], [2, 2], -1, 0).

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Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

100. A Fixed-y Polynomial Slice and Its Exact One-Variable Derivative

Use coefficients=[12, 2, 0, 1, -1, -1] in the fixed order [1,x,y,x²,x*y,y²]. A partial derivative fixes the other coordinate and is defined by the one-variable difference-quotient limit as nonzero h tends to 0; the exercise uses exact polynomial differentiation, not a single finite-difference sample. Existence of partial derivatives alone establishes no general continuity, total differentiability or exchange of mixed derivatives. fixed y=2, evaluation x=0. Give (original coefficients,fixed y,ascending x-slice coefficients,ascending derivative coefficients,x,derivative value). The slice has degrees up to 2 and its derivative degrees up to 1.

View answer and explanation

([12, 2, 0, 1, -1, -1], 2, [8, 0, 1], [0, 2], 0, 0)

Substitute the fixed second coordinate before differentiating the resulting x-polynomial; keep coefficient order and zero coefficients. This exact finite slice is not automatically a general infinite conclusion. The exact result, retaining the requested order, is ([12, 2, 0, 1, -1, -1], 2, [8, 0, 1], [0, 2], 0, 0).

Reviewed step-by-step derivation

Partial derivative · qf-mod24-partial-x-slice-derivative · candidate

Canonical question JSONL · English JSONL · Validation report