CPM Homework Help : A2C Problem 10-116

Hint (a):

(2 + 3i) + (1 − i)

Answer (a):

3 + 2i

Hint (b):

(2 + 3i) − (1 − i)
Use a generic rectangle.

Hint (c):

(2 + 3i)(1 − i)

Hint (d):

$\frac{(2+3i)}{(1-i)}\ \ \ \ \ \ \ \ \ \ \ \footnotesize\frac{(2+3i)}{(1-i)}\cdot\frac{(1+i)}{(1+i)}$

Answer (d):

$-\frac{1}{2}+\frac{5}{2}i$