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Question 26491: A Polynomial of Degree at Most the Taylor Order Has Zero Remainder

On this page
  1. Original question and givens
  2. Definition and scope
  3. Step-by-step derivation
  4. Reverse checks
  5. Result
  6. This question review and source binding

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← Question derivation index · Original question batch

R0051-26491 · q-20261015-advance-20261116-r03-taylor-remainder-theorem-0041

Original question and givens

Coefficients=[17, 16] are in ascending power order, with exact rationals and trailing zero coefficients removed for degree. Center=0, point=1/2, order=1; keep terms through that order, and define remainder=f(x)−Taylor_value. Give (degree, order, Taylor_terms, remainder, zero_remainder, certificate).

  • G001 — Coefficients=[17, 16] are in ascending power order, with exact rationals and trailing zero coefficients removed for degree. Center=0, point=1/2, order=1; keep terms through that order, and define remainder=f(x)−Taylor_value. Give (degree, order, Taylor_terms, remainder, zero_remainder, certificate).

Definition and scope

Use the original question domain, assumptions and cited MKO definitions. This item has second-context mathematical and bilingual review, with the model, answer and every arithmetic step independently recomputed from the original parameters; the source question remains a candidate.

Step-by-step derivation

S001 · implies

Before

source roles = [taylor-zero-remainder]

After

derived = [[degree, order, Taylor_terms, remainder, zero_remainder, certificate]]

Conditions: none

List the full source field order without JavaScript.Original modes select contract6/4/6/6 and IVT8/7/8 roles,without padding or answer-shape inference.

Step identifiers and dependencies

Rule: source_ordered_fields_without_JS · Uses: G001

S002 · calculation

Before

Taylor ORIGINAL x minus declared center := sub(1/2, 0)

After

Taylor ORIGINAL x minus declared center = 1/2

Conditions: none

Substitute original roles and established intermediates exactly,without rounding;extra teaching identities do not restrict the source domain.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S001

S003 · implies

Before

(0)^0

After

Taylor ORIGINAL derivative0 center power0 term0 = 1

Conditions: none

Evaluate the finite nonnegative-integer power exactly; exponent0 uses the polynomial multiplicative identity.

Step identifiers and dependencies

Rule: integer_power · Uses: G001, S002

S004 · calculation

Before

Taylor ORIGINAL derivative0 falling factor times power term0 := mul(1, 1)

After

Taylor ORIGINAL derivative0 falling factor times power term0 = 1

Conditions: none

Substitute original roles and established intermediates exactly,without rounding;extra teaching identities do not restrict the source domain.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S003

S005 · calculation

Before

Taylor ORIGINAL derivative0 ORIGINAL coefficient term0 := mul(17, 1)

After

Taylor ORIGINAL derivative0 ORIGINAL coefficient term0 = 17

Conditions: none

Substitute original roles and established intermediates exactly,without rounding;extra teaching identities do not restrict the source domain.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S004

S006 · calculation

Before

Taylor ORIGINAL derivative0 ascending derivative sum term0 := sum(0, 17)

After

Taylor ORIGINAL derivative0 ascending derivative sum term0 = 17

Conditions: none

Substitute original roles and established intermediates exactly,without rounding;extra teaching identities do not restrict the source domain.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S005

S007 · implies

Before

(0)^1

After

Taylor ORIGINAL derivative0 center power1 term1 = 0

Conditions: none

Evaluate the finite nonnegative-integer power exactly; exponent0 uses the polynomial multiplicative identity.

Step identifiers and dependencies

Rule: integer_power · Uses: G001, S006

S008 · calculation

Before

Taylor ORIGINAL derivative0 falling factor times power term1 := mul(1, 0)

After

Taylor ORIGINAL derivative0 falling factor times power term1 = 0

Conditions: none

Substitute original roles and established intermediates exactly,without rounding;extra teaching identities do not restrict the source domain.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S007

S009 · calculation

Before

Taylor ORIGINAL derivative0 ORIGINAL coefficient term1 := mul(16, 0)

After

Taylor ORIGINAL derivative0 ORIGINAL coefficient term1 = 0

Conditions: none

Substitute original roles and established intermediates exactly,without rounding;extra teaching identities do not restrict the source domain.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S008

S010 · calculation

Before

Taylor ORIGINAL derivative0 ascending derivative sum term1 := sum(17, 0)

After

Taylor ORIGINAL derivative0 ascending derivative sum term1 = 17

Conditions: none

Substitute original roles and established intermediates exactly,without rounding;extra teaching identities do not restrict the source domain.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S009

S011 · implies

Before

source roles = [0, 0, [17, 16]]

After

derived = [[[0, 17, 1, 1, 17], [1, 16, 1, 0, 0]], 17]

Conditions: none

The kth derivative of x^j is j!/(j−k)!*x^(j−k);terms j<k vanish.Sum the complete ascending-order terms,with empty sum0.The whole polynomial is known,not just a center jet.

Step identifiers and dependencies

Rule: Taylor_EACH_derivative_complete_falling_factorial_source_order · Uses: G001, S010

S012 · implies

Before

(1/2)^0

After

Taylor ORIGINAL displacement power0 = 1

Conditions: none

Evaluate the finite nonnegative-integer power exactly; exponent0 uses the polynomial multiplicative identity.

Step identifiers and dependencies

Rule: integer_power · Uses: G001, S011

S013 · calculation

Before

Taylor ORIGINAL derivative times displacement0 := mul(17, 1)

After

Taylor ORIGINAL derivative times displacement0 = 17

Conditions: none

Substitute original roles and established intermediates exactly,without rounding;extra teaching identities do not restrict the source domain.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S012

S014 · calculation

Before

Taylor ORIGINAL term0 divide factorial := div(17, 1)

After

Taylor ORIGINAL term0 divide factorial = 17

Conditions: none

Substitute original roles and established intermediates exactly,without rounding;extra teaching identities do not restrict the source domain.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S013

S015 · implies

Before

(0)^0

After

Taylor ORIGINAL derivative1 center power0 term1 = 1

Conditions: none

Evaluate the finite nonnegative-integer power exactly; exponent0 uses the polynomial multiplicative identity.

Step identifiers and dependencies

Rule: integer_power · Uses: G001, S014

S016 · calculation

Before

Taylor ORIGINAL derivative1 falling factor times power term1 := mul(1, 1)

After

Taylor ORIGINAL derivative1 falling factor times power term1 = 1

Conditions: none

Substitute original roles and established intermediates exactly,without rounding;extra teaching identities do not restrict the source domain.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S015

S017 · calculation

Before

Taylor ORIGINAL derivative1 ORIGINAL coefficient term1 := mul(16, 1)

After

Taylor ORIGINAL derivative1 ORIGINAL coefficient term1 = 16

Conditions: none

Substitute original roles and established intermediates exactly,without rounding;extra teaching identities do not restrict the source domain.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S016

S018 · calculation

Before

Taylor ORIGINAL derivative1 ascending derivative sum term1 := sum(0, 16)

After

Taylor ORIGINAL derivative1 ascending derivative sum term1 = 16

Conditions: none

Substitute original roles and established intermediates exactly,without rounding;extra teaching identities do not restrict the source domain.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S017

S019 · implies

Before

source roles = [1, 0, [17, 16]]

After

derived = [[[1, 16, 1, 1, 16]], 16]

Conditions: none

The kth derivative of x^j is j!/(j−k)!*x^(j−k);terms j<k vanish.Sum the complete ascending-order terms,with empty sum0.The whole polynomial is known,not just a center jet.

Step identifiers and dependencies

Rule: Taylor_EACH_derivative_complete_falling_factorial_source_order · Uses: G001, S018

S020 · implies

Before

(1/2)^1

After

Taylor ORIGINAL displacement power1 = 1/2

Conditions: none

Evaluate the finite nonnegative-integer power exactly; exponent0 uses the polynomial multiplicative identity.

Step identifiers and dependencies

Rule: integer_power · Uses: G001, S019

S021 · calculation

Before

Taylor ORIGINAL derivative times displacement1 := mul(16, 1/2)

After

Taylor ORIGINAL derivative times displacement1 = 8

Conditions: none

Substitute original roles and established intermediates exactly,without rounding;extra teaching identities do not restrict the source domain.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S020

S022 · calculation

Before

Taylor ORIGINAL term1 divide factorial := div(8, 1)

After

Taylor ORIGINAL term1 divide factorial = 8

Conditions: none

Substitute original roles and established intermediates exactly,without rounding;extra teaching identities do not restrict the source domain.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S021

S023 · calculation

Before

Taylor ORIGINAL partial sum0 := sum(0, 17)

After

Taylor ORIGINAL partial sum0 = 17

Conditions: none

Substitute original roles and established intermediates exactly,without rounding;extra teaching identities do not restrict the source domain.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S022

S024 · calculation

Before

Taylor ORIGINAL partial sum1 := sum(17, 8)

After

Taylor ORIGINAL partial sum1 = 25

Conditions: none

Substitute original roles and established intermediates exactly,without rounding;extra teaching identities do not restrict the source domain.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S023

S025 · implies

Before

(1/2)^0

After

Taylor ORIGINAL full function at x ORIGINAL argument power0 = 1

Conditions: none

Evaluate the finite nonnegative-integer power exactly; exponent0 uses the polynomial multiplicative identity.

Step identifiers and dependencies

Rule: integer_power · Uses: G001, S024

S026 · calculation

Before

Taylor ORIGINAL full function at x coefficient term0 := mul(17, 1)

After

Taylor ORIGINAL full function at x coefficient term0 = 17

Conditions: none

Substitute original roles and established intermediates exactly,without rounding;extra teaching identities do not restrict the source domain.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S025

S027 · calculation

Before

Taylor ORIGINAL full function at x ascending partial sum0 := sum(0, 17)

After

Taylor ORIGINAL full function at x ascending partial sum0 = 17

Conditions: none

Substitute original roles and established intermediates exactly,without rounding;extra teaching identities do not restrict the source domain.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S026

S028 · implies

Before

(1/2)^1

After

Taylor ORIGINAL full function at x ORIGINAL argument power1 = 1/2

Conditions: none

Evaluate the finite nonnegative-integer power exactly; exponent0 uses the polynomial multiplicative identity.

Step identifiers and dependencies

Rule: integer_power · Uses: G001, S027

S029 · calculation

Before

Taylor ORIGINAL full function at x coefficient term1 := mul(16, 1/2)

After

Taylor ORIGINAL full function at x coefficient term1 = 8

Conditions: none

Substitute original roles and established intermediates exactly,without rounding;extra teaching identities do not restrict the source domain.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S028

S030 · calculation

Before

Taylor ORIGINAL full function at x ascending partial sum1 := sum(17, 8)

After

Taylor ORIGINAL full function at x ascending partial sum1 = 25

Conditions: none

Substitute original roles and established intermediates exactly,without rounding;extra teaching identities do not restrict the source domain.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S029

S031 · calculation

Before

Taylor ORIGINAL f(x) minus Taylor value := sub(25, 25)

After

Taylor ORIGINAL f(x) minus Taylor value = 0

Conditions: none

Substitute original roles and established intermediates exactly,without rounding;extra teaching identities do not restrict the source domain.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S030

S032 · implies

Before

source roles = [[17, 16], 0, 1/2, 1, [17, 16], [17, 8]]

After

derived = [25, 25, 0, 1]

Conditions: none

Use T_n=sum f^(k)(a)(x−a)^k/k!,including degree0 and all requested zero terms;remainder=f(x)−T_n.A polynomial differentiates on the whole interval,but a finite center jet of an arbitrary function does not supply interval hypotheses,series equality or analyticity.Empty coefficients have degree−1,distinct from[0]degree0.

Step identifiers and dependencies

Rule: Taylor_WHOLE_polynomial_shifted_basis_remainder_vs_interval_hypotheses · Uses: G001, S031

Reverse checks

  • S032 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S031 · premise_and_result_audit — Recompute Taylor ORIGINAL f(x) minus Taylor value with exact rational arithmetic, not rounded decimals.
  • S030 · premise_and_result_audit — Recompute Taylor ORIGINAL full function at x ascending partial sum1 with exact rational arithmetic, not rounded decimals.
  • S029 · premise_and_result_audit — Recompute Taylor ORIGINAL full function at x coefficient term1 with exact rational arithmetic, not rounded decimals.
  • S028 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S027 · premise_and_result_audit — Recompute Taylor ORIGINAL full function at x ascending partial sum0 with exact rational arithmetic, not rounded decimals.
  • S026 · premise_and_result_audit — Recompute Taylor ORIGINAL full function at x coefficient term0 with exact rational arithmetic, not rounded decimals.
  • S025 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S024 · premise_and_result_audit — Recompute Taylor ORIGINAL partial sum1 with exact rational arithmetic, not rounded decimals.
  • S023 · premise_and_result_audit — Recompute Taylor ORIGINAL partial sum0 with exact rational arithmetic, not rounded decimals.
  • S022 · premise_and_result_audit — Recompute Taylor ORIGINAL term1 divide factorial with exact rational arithmetic, not rounded decimals.
  • S021 · premise_and_result_audit — Recompute Taylor ORIGINAL derivative times displacement1 with exact rational arithmetic, not rounded decimals.
  • S020 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S019 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S018 · premise_and_result_audit — Recompute Taylor ORIGINAL derivative1 ascending derivative sum term1 with exact rational arithmetic, not rounded decimals.
  • S017 · premise_and_result_audit — Recompute Taylor ORIGINAL derivative1 ORIGINAL coefficient term1 with exact rational arithmetic, not rounded decimals.
  • S016 · premise_and_result_audit — Recompute Taylor ORIGINAL derivative1 falling factor times power term1 with exact rational arithmetic, not rounded decimals.
  • S015 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S014 · premise_and_result_audit — Recompute Taylor ORIGINAL term0 divide factorial with exact rational arithmetic, not rounded decimals.
  • S013 · premise_and_result_audit — Recompute Taylor ORIGINAL derivative times displacement0 with exact rational arithmetic, not rounded decimals.
  • S012 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S011 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S010 · premise_and_result_audit — Recompute Taylor ORIGINAL derivative0 ascending derivative sum term1 with exact rational arithmetic, not rounded decimals.
  • S009 · premise_and_result_audit — Recompute Taylor ORIGINAL derivative0 ORIGINAL coefficient term1 with exact rational arithmetic, not rounded decimals.
  • S008 · premise_and_result_audit — Recompute Taylor ORIGINAL derivative0 falling factor times power term1 with exact rational arithmetic, not rounded decimals.
  • S007 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S006 · premise_and_result_audit — Recompute Taylor ORIGINAL derivative0 ascending derivative sum term0 with exact rational arithmetic, not rounded decimals.
  • S005 · premise_and_result_audit — Recompute Taylor ORIGINAL derivative0 ORIGINAL coefficient term0 with exact rational arithmetic, not rounded decimals.
  • S004 · premise_and_result_audit — Recompute Taylor ORIGINAL derivative0 falling factor times power term0 with exact rational arithmetic, not rounded decimals.
  • S003 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S002 · premise_and_result_audit — Recompute Taylor ORIGINAL x minus declared center with exact rational arithmetic, not rounded decimals.
  • S001 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.

Result

(1, 1, [17, 8], 0, Yes, degree_at_most_n_polynomial_has_zero_remainder)

The full substitutions and premise checks give the original answer; source identity,format and status are unchanged.

This question review and source binding

Review date: 2026-10-26

Original questions, answers, step expressions, numeric ASTs and historical records are retained. Source candidate labels remain historical and are not overwritten as formal proof.

Source hashes and review receipts
  • input commit: 0f7be61e2c22317a4075561dc822c87d881a50db
  • original question SHA-256: d139e1538f824fc399fff45ec4c6267587e3d7da90949786cc4e5e001562d93e
  • candidate record SHA-256: c9439863576bc8fe00097e1b716b2f2d4516143c652ca4c5846ba4c5371e1601
  • semantic review receipt SHA-256: 90df1e889242e9afdf01e068788ee8500ef366ffcfc0496e30a6800de32631c3
  • question-first witness SHA-256: ae1e849608590ca856c9f3b6911ba58e3bf53c608eb7369606192a770f48bd5c
  • Lean: NOT_RUN · human review: NOT_PERFORMED
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