# Thread: Division of i thing..

1. ## Division of i thing..

Did I do this right?

I multiplied both numerator and denominator by $4+2i$

For the numerator I got: $16+8i+8i+4i^2$
$= 12+16i$

Now with the denominator I got: $16+8i-8i-4i^2$
$= 20$

2. Originally Posted by fluffy_penguin
Did I do this right?

I multiplied both numerator and denominator by $4+2i$

For the numerator I got: $16+8i+8i+4i^2$
$= 12+16i$

Now with the denominator I got: $16+8i-8i-4i^2$
$= 20$
So far so good. Now simplify the fractions.

-Dan

3. So a simplified version is $3/5+4/5i$