# Complex numbers

# Unlock your personalized study plan

Take Quiz 1 to identify your areas for growth. We'll recommend lessons for exactly what you need to learn.

Lessons

What are the imaginary numbers?What are the complex numbers?The complex planeQuiz 1Adding and subtracting complex numbersDistance and midpoint of complex numbersQuiz 2Multiplying complex numbersComplex conjugates and dividing complex numbersQuiz 3Absolute value and angle of complex numbersPolar form of complex numbersQuiz 4Multiplying and dividing complex numbers in polar formQuiz 5Challenging complex number problemsUnit testPractice

Quizzes

Unit test

Learn

Practice

Powers of the imaginary unit

4 questions

Practice

Simplify roots of negative numbers

4 questions

Practice

Practice

Plot numbers on the complex plane

4 questions

Practice

Identify your areas for growth in these lessons:

Practice

Add & subtract complex numbers

4 questions

Practice

Graphically add & subtract complex numbers

4 questions

Practice

Practice

Distance of complex numbers

4 questions

Practice

Midpoint of complex numbers

4 questions

Practice

Identify your areas for growth in these lessons:

Practice

Multiply complex numbers (basic)

4 questions

Practice

Multiply complex numbers

4 questions

Practice

Learn

Identify your areas for growth in these lessons:

Learn

Practice

Absolute value of complex numbers

4 questions

Practice

Angle of complex numbers

4 questions

Practice

Complex numbers from absolute value & angle

4 questions

Practice

Identify your areas for growth in these lessons:

Learn

Practice

Multiply & divide complex numbers in polar form

4 questions

Practice

Powers of complex numbers

4 questions

Practice

Identify your areas for growth in this lesson:

Test your understanding of

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

Use your imagination and complexity (?) and dive into the world of complex numbers. Add, subtract, multiply, & divide complex numbers. Plot them on the complex plane and convert between rectangular and polar forms.