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Algebra 2 · N-CN

Modulus and Conjugate of a Complex Number

The modulus |a+bi| = √(a²+b²) is the distance from the origin. The conjugate of a+bi is a−bi.

Algebra 2Common Core HSN-CN.A.3N-CNVerified correct ✓

Worked examples

Find the conjugate of: -4 + 3i
Answer: -4
Find the conjugate of: 5 + 7i
Answer: 5

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Complex Number Arithmetic — Add, Subtract, Multiply

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