# How do you write the complex number #-2i# in polar form?

##### 2 Answers

Mar 23, 2017

Please see the explanation.

#### Explanation:

Because the real part (a) of the complex number is zero, you cannot use

You can see that the magnitude is 2.

The polar form is:

Mar 23, 2017

I hope a get it right:

#### Explanation:

In polar: