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Question 10304: Conjugation of an Ordered Complex Pair

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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R0019-10304 · q-20261013-advance-20261023-r01-complex-modulus-conjugate-0004

Original question and givens

Use integer ordered pairs [a,b] for a+b*i, with i²=−1. Conjugation reverses the imaginary coefficient, not the real part. Modulus squared is a²+b²; do not replace it with a square root or a decimal approximation. No complex-analysis conclusion is claimed. value=[-9, 0]. Give (value,conjugate).

  • G001 — Use integer ordered pairs [a,b] for a+b*i, with i²=−1. Conjugation reverses the imaginary coefficient, not the real part. Modulus squared is a²+b²; do not replace it with a square root or a decimal approximation. No complex-analysis conclusion is claimed. value=[-9, 0]. Give (value,conjugate).

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

declared complex ordered pair=[-9, 0]

After

exact integer coefficients in the algebra with i^2=-1

Conditions: none

Use the declared complex algebra,not componentwise real-vector multiplication.The zero complex number is allowed.

Step identifiers and dependencies

Rule: exact_complex_pair_scope · Uses: G001

S002 · calculation

Before

given value negate imaginary coefficient := sub(0, 0)

After

given value negate imaginary coefficient = 0

Conditions: none

Compute exactly from this step's original operands in the specified order,retaining signs and denominator conditions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S001

S003 · implies

Before

given value:original ordered pair=[-9, 0]

After

conjugate pair=[-9, 0]

Conditions: none

The pair(a,b) denotes a+bi.Conjugation fixes the real part and negates only b;it does not exchange coordinates.

Step identifiers and dependencies

Rule: complex_conjugate_real_fixed_imaginary_negated · Uses: G001, S002

Reverse checks

  • 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 given value negate imaginary coefficient 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

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

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: c376cbd9872f0570f21529309a4347f039bb809a09f076986d980b52ec156f7e
  • candidate record SHA-256: 7da8ad11b65b3c6b7bcc3e226aa9a2050ec103c27c7941ec4e70a996398b5e89
  • semantic review receipt SHA-256: eeb35dc5daab92234bf72827627392b47f38ead4cfb574d4373bebc43c09fbf5
  • question-first witness SHA-256: 3cf8e0d3a00b0df1994db2bfde81f4a31b382e170bdda83ea3d0b68da64e8419
  • Lean: NOT_RUN · human review: NOT_PERFORMED
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