# Complex numbers

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Lessons

What are the imaginary numbers?What are the complex numbers?Quiz 1The complex planeAdding & subtracting complex numbersQuiz 2Multiplying complex numbersComplex conjugates & dividing complex numbersQuiz 3Absolute value & angle of complex numbersDistance & midpoint of complex numbersQuiz 4Polar form of complex numbersMultiplying & dividing complex numbers in polar formChallenging complex number problemsUnit testPractice

Quizzes

Unit test

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Add & subtract complex numbers

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75%

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Absolute value of complex numbers

4 questions

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Angle of complex numbers

4 questions

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Complex numbers from absolute value & angle

4 questions

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Distance of complex numbers

4 questions

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Midpoint of complex numbers

4 questions

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Multiply & divide complex numbers in polar form

4 questions

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Powers of complex numbers

4 questions

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Test your understanding of

**Complex numbers**with these 15 questions.About this unit

This topic covers:
- Adding, subtracting, multiplying, & dividing complex numbers
- Complex plane
- Absolute value & angle of complex numbers
- Polar coordinates of complex numbers