# Complex numbers

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**Complex numbers**with these 12 questions.If you're seeing this message, it means we're having trouble loading external resources on our website.

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# Complex numbers

### Learn

### Learn

### Practice

### Learn

### Practice

### 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

Test your understanding of **Complex numbers** with these 12 questions.