Question

PLs help quesion as photo in replies

Answer 1

Can anyone help me understand

Answer 2

We want to simplify it.. so the denominator doesn't have an i
(a-bi)(a+bI) = a^2 + b^2
Can you make the denominator a rational number
what is (3-2i)(3+2i)

Answer 3

13 right?

Answer 4

nope i think i messed it up

Answer 5

Yes so now we also have to multiply the top by that \[\frac{ 3-i }{ 3-2i } = \frac{ (3-i)(3+2i) }{ (3-2i)(3+2i) } = \frac{ ? }{ 13 }\] what is the question mark

Answer 6

I got it form here thx.

Answer 7

yw~