# Question 1399: Antiderivative Value Retaining the Actual Constant

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This teaching derivation has second-context AI mathematical and bilingual semantic review, limited to the model and assumptions stated in this question. It has no human review or new Lean proof and does not promote the original question or MKO to Canonical truth.

R0001-01399 · q-20261007-advance-20261008-r06-antiderivative-0099



## Original question and givens

On all R, f has ascending coefficients [11, 24, 1, 4], starting with its constant term. Let F0 be its zero-constant primitive. Find F0(-3)+(11), retaining the actual additive constant. Give a reduced fraction with positive denominator, retaining /1 for integers.


- G001 — On all R, f has ascending coefficients [11, 24, 1, 4], starting with its constant term. Let F0 be its zero-constant primitive. Find F0(-3)+(11), retaining the actual additive constant. Give a reduced fraction with positive denominator, retaining /1 for integers.





## 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.


- [mko-antiderivative](https://ocme.evemisslab.com/en/mko/mko-antiderivative/)





## Step-by-step derivation

S001 · impliesBefore

domain=R; coefficient lists are in ascending powers

After

constant term first; rational pairs=[numerator,denominator]

Conditions: none

Fix coefficient order;do not read ascending coefficients as descending or swap numerator and denominator.

Step identifiers and dependenciesRule: polynomial_representation · Uses: G001





S002 · impliesBefore

f coefficients ascending=[11, 24, 1, 4]

After

seek F₀ with constant coefficient0 and F₀′=f

Conditions: none

Antiderivatives are not generally unique; this task additionally fixes the constant coefficient at0.

Step identifiers and dependenciesRule: canonical_primitive_domain · Uses: G001, S001





S003 · calculationBefore

primitive coefficient at degree1 := div(11, 1)

After

primitive coefficient at degree1 = 11

Conditions: none

Since (x^(k+1))′=(k+1)x^k,divide the coefficient by the positive nonzero integer k+1.

Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S002





S004 · calculationBefore

differentiate back coefficient0 := mul(11, 1)

After

differentiate back coefficient0 = 11

Conditions: none

Differentiation multiplies back by k+1 and must recover the original coefficient.

Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S003





S005 · calculationBefore

primitive coefficient at degree2 := div(24, 2)

After

primitive coefficient at degree2 = 12

Conditions: none

Since (x^(k+1))′=(k+1)x^k,divide the coefficient by the positive nonzero integer k+1.

Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S004





S006 · calculationBefore

differentiate back coefficient1 := mul(12, 2)

After

differentiate back coefficient1 = 24

Conditions: none

Differentiation multiplies back by k+1 and must recover the original coefficient.

Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S005





S007 · calculationBefore

primitive coefficient at degree3 := div(1, 3)

After

primitive coefficient at degree3 = 1/3

Conditions: none

Since (x^(k+1))′=(k+1)x^k,divide the coefficient by the positive nonzero integer k+1.

Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S006





S008 · calculationBefore

differentiate back coefficient2 := mul(1/3, 3)

After

differentiate back coefficient2 = 1

Conditions: none

Differentiation multiplies back by k+1 and must recover the original coefficient.

Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S007





S009 · calculationBefore

primitive coefficient at degree4 := div(4, 4)

After

primitive coefficient at degree4 = 1

Conditions: none

Since (x^(k+1))′=(k+1)x^k,divide the coefficient by the positive nonzero integer k+1.

Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S008





S010 · calculationBefore

differentiate back coefficient3 := mul(1, 4)

After

differentiate back coefficient3 = 4

Conditions: none

Differentiation multiplies back by k+1 and must recover the original coefficient.

Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S009





S011 · impliesBefore

[0, 11, 12, 1/3, 1]

After

all derivative coefficients agree with f

Conditions: none

Coefficient agreement proves the polynomial identity on all reals,not merely equality at a few points.

Step identifiers and dependenciesRule: global_polynomial_identity · Uses: G001, S010





S012 · calculationBefore

constant coefficient+C := sum(0, 11)

After

constant coefficient+C = 11

Conditions: none

Change only the constant coefficient;the derivative remains the same f.

Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S011





S013 · calculationBefore

F(x) multiply at degree4 := mul(0, -3)

After

F(x) multiply at degree4 = 0

Conditions: none

In Horner order, multiply by the same evaluation point first.

Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S012





S014 · calculationBefore

F(x) add coefficient4 := sum(0, 1)

After

F(x) add coefficient4 = 1

Conditions: none

Then add the exact rational coefficient for this degree.

Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S013





S015 · calculationBefore

F(x) multiply at degree3 := mul(1, -3)

After

F(x) multiply at degree3 = -3

Conditions: none

In Horner order, multiply by the same evaluation point first.

Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S014





S016 · calculationBefore

F(x) add coefficient3 := sum(-3, 1/3)

After

F(x) add coefficient3 = -8/3

Conditions: none

Then add the exact rational coefficient for this degree.

Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S015





S017 · calculationBefore

F(x) multiply at degree2 := mul(-8/3, -3)

After

F(x) multiply at degree2 = 8

Conditions: none

In Horner order, multiply by the same evaluation point first.

Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S016





S018 · calculationBefore

F(x) add coefficient2 := sum(8, 12)

After

F(x) add coefficient2 = 20

Conditions: none

Then add the exact rational coefficient for this degree.

Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S017





S019 · calculationBefore

F(x) multiply at degree1 := mul(20, -3)

After

F(x) multiply at degree1 = -60

Conditions: none

In Horner order, multiply by the same evaluation point first.

Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S018





S020 · calculationBefore

F(x) add coefficient1 := sum(-60, 11)

After

F(x) add coefficient1 = -49

Conditions: none

Then add the exact rational coefficient for this degree.

Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S019





S021 · calculationBefore

F(x) multiply at degree0 := mul(-49, -3)

After

F(x) multiply at degree0 = 147

Conditions: none

In Horner order, multiply by the same evaluation point first.

Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S020





S022 · calculationBefore

F(x) add coefficient0 := sum(147, 11)

After

F(x) add coefficient0 = 158

Conditions: none

Then add the exact rational coefficient for this degree.

Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S021





S023 · impliesBefore

x=-3; additive constant=11

After

F(x)=158/1

Conditions: none

Use a reduced positive-denominator fraction,retaining /1 even for integers.

Step identifiers and dependenciesRule: primitive_value_format · Uses: G001, S022









## Reverse checks


- S023 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
- S022 · premise_and_result_audit — Recompute F(x) add coefficient0 with exact rational arithmetic, not rounded decimals.
- S021 · premise_and_result_audit — Recompute F(x) multiply at degree0 with exact rational arithmetic, not rounded decimals.
- S020 · premise_and_result_audit — Recompute F(x) add coefficient1 with exact rational arithmetic, not rounded decimals.
- S019 · premise_and_result_audit — Recompute F(x) multiply at degree1 with exact rational arithmetic, not rounded decimals.
- S018 · premise_and_result_audit — Recompute F(x) add coefficient2 with exact rational arithmetic, not rounded decimals.
- S017 · premise_and_result_audit — Recompute F(x) multiply at degree2 with exact rational arithmetic, not rounded decimals.
- S016 · premise_and_result_audit — Recompute F(x) add coefficient3 with exact rational arithmetic, not rounded decimals.
- S015 · premise_and_result_audit — Recompute F(x) multiply at degree3 with exact rational arithmetic, not rounded decimals.
- S014 · premise_and_result_audit — Recompute F(x) add coefficient4 with exact rational arithmetic, not rounded decimals.
- S013 · premise_and_result_audit — Recompute F(x) multiply at degree4 with exact rational arithmetic, not rounded decimals.
- S012 · premise_and_result_audit — Recompute constant coefficient+C with exact rational arithmetic, not rounded decimals.
- 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 differentiate back coefficient3 with exact rational arithmetic, not rounded decimals.
- S009 · premise_and_result_audit — Recompute primitive coefficient at degree4 with exact rational arithmetic, not rounded decimals.
- S008 · premise_and_result_audit — Recompute differentiate back coefficient2 with exact rational arithmetic, not rounded decimals.
- S007 · premise_and_result_audit — Recompute primitive coefficient at degree3 with exact rational arithmetic, not rounded decimals.
- S006 · premise_and_result_audit — Recompute differentiate back coefficient1 with exact rational arithmetic, not rounded decimals.
- S005 · premise_and_result_audit — Recompute primitive coefficient at degree2 with exact rational arithmetic, not rounded decimals.
- S004 · premise_and_result_audit — Recompute differentiate back coefficient0 with exact rational arithmetic, not rounded decimals.
- S003 · premise_and_result_audit — Recompute primitive coefficient at degree1 with exact rational arithmetic, not rounded decimals.
- S002 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
- S001 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.





## Result

158/1

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: 8865cc04427f6411b61c81ae4144732ed146ae54cc33dd0bed6980b8aa101d90
- candidate record SHA-256: ab7ea73f881c27f4e7226f83a43c6097ad4bb07d63ce9d6e981c1fe74bf11b6b
- semantic review receipt SHA-256: c3b44ce8ed60ada6902fb206627537d5f90ba2a867eaba43a36f903280c496cc
- question-first witness SHA-256: 3e91602adc7f81a2671a2a3ffaf6a447028b56abc5853e8271673d76f30cd7ad
- Lean: NOT_RUN · human review: NOT_PERFORMED

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