Answer
False
Work Step by Step
There are many cases where the product of two complex numbers is a real number. For example, $(1+i)(1-i)=1(1)+i-i-i^2=1-i^2=1-(-1)=1+1=2$
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
Published by
Cengage Learning
ISBN 10:
1285194055
ISBN 13:
978-1-28519-405-9
Chapter 11 - Additional Topics - 11.4 - Complex Numbers - Concept Quiz 11.4 - Page 493: 9
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