Use the relation 𝑖^2 = −1 and the mathematical properties to add, subtract, and multiply complex numbers.
Example Problems
Simplify:
Simplify:
Simplify:
Khan Academy ResourcesComplex number operations reviewComplex number polar form reviewComplex numbers: FAQVisualizing complex number multiplicationIntro to the imaginary numbersVisualizing complex number powersGraphically add & subtract complex numbers Multiply & divide complex numbers in polar formAdd & subtract complex numbersMultiply complex numbersGraphically multiply complex numbersMultiplying complex numbersSubtracting complex numbersComplex number conjugatesAdding complex numbersIntro to complex number conjugatesClassifying complex numbersMultiplying complex numbers in polar formMultiplying complex numbers graphically example: -1-iMultiplying complex numbers graphically example: -3i
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