Answer
The quotient of $\frac{w}{z}$ is $-i$ in rectangular form, and the result is the same as that computed in Exercise 37.
Work Step by Step
From Exercise 38, the quotient of $\frac{w}{z}$ is $cos(-90^\circ) + isin(-90^\circ)$ which is equal to $-i$ in rectangular form, hence, the result is the same as that computed in Exercise 37.