CPM Homework Help : A2C Problem 10-81

Compute the quotient $\frac { ( 4 - 7 i ) } { ( 8 - 9 i ) }$ .

Hint:

$\frac{(4-7i)}{(8-9i)}\cdot \frac{(8+9i)}{(8+9i)}$

Answer:

$\frac{19-4i}{29}=\frac{19}{29}-\frac{4}{29}i$