Complex numbers in polar form and Euler form

In this lesson, you'll learn how to write a complex number in both polar form and Euler form (by first finding its module and argument). Also, you'll perform operations with complex numbers using those two forms

Duration: 1h

Lesson objectives

• Students will be able to express complex numbers in polar form and Euler form
• Students will be able to multiply and divide complex numbers in both polar form and Euler form

Lesson

1. Given the complex numbers below

$z_1 = lalala$

$z_2 = lalala$

Find:

1. Find
2. and
3. Without converting it to polar form, find and
4. Find:
1. and
2. and
5. State whether the answers for item c make sense based on what you got for item a. Explain with rich detail.

Other stuff

Resources (11th grade)

• Exercises
• Minimum
• Haese AA HL 14D 14E
• Harder
• Lalala

Assessments