### Home > PC3 > Chapter 11 > Lesson 11.1.4 > Problem 11-76

11-76.

Compute each of the following products of complex numbers. Recall that .

What does

need to be multiplied by so that the result is a whole number? The answers for parts (a) and (b) are both whole numbers. How are the factors being multiplied the same or different?

What does

need to be multiplied by so that the result is a real number?