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Khan Academy (English - US curriculum)
Math by grade
Eureka Math/EngageNY
Precalculus (Eureka Math/EngageNY)
Module 1: Complex numbers and transformations
Topic A: Lessons 7-8: Complex number division
Complex number conjugates

Complex number conjugates

Sal finds the conjugate of (7-5i).

License: CC BY-NC-SA by Khan Academy

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