Main content

# Complex numbers

### Learn

### Practice

Simplify roots of negative numbersGet 3 of 4 questions to level up!

Powers of the imaginary unitGet 3 of 4 questions to level up!

### Practice

Parts of complex numbersGet 3 of 4 questions to level up!

Classify complex numbersGet 3 of 4 questions to level up!

### Practice

Plot numbers on the complex planeGet 3 of 4 questions to level up!

### Practice

Add & subtract complex numbersGet 3 of 4 questions to level up!

Graphically add & subtract complex numbers Get 3 of 4 questions to level up!

### Learn

### Practice

Multiply complex numbers (basic)Get 3 of 4 questions to level up!

Multiply complex numbersGet 3 of 4 questions to level up!