Question

How do you find the power `(2+3i)^-2` and express the result in rectangular form?

Answer 1

`(13-6i)/169`

Explanation:

writing

`(2-3i)^2/((2+3i)(2-3i))^2`
this is

`(4+9-6i)/(4+9)^2`

`(13-6i)/(169)`