Question

What is the absolute value of -6i?

I know that |-6| is 6 but what about the i?

Answer 1

`6`

Explanation:

`"given a "color(blue)"complex number"`

`z=x+yi" then"`

`|z|=sqrt(x^2+y^2)larrcolor(blue)"absolute value"`

`"for "z=0-6i" then the absolute value is"`

`|-6i|=sqrt(0^2+(-6)^2)=sqrt36=6`