Trigonometry (11th Edition) Clone

Published by Pearson
ISBN 10: 978-0-13-421743-7
ISBN 13: 978-0-13421-743-7

Chapter 8 - Complex Numbers, Polar Equations, and Parametric Equations - Section 8.1 Complex Numbers - 8.1 Exercises - Page 363: 9


False, every real number is a complex number.

Work Step by Step

For a complex number $a+bi$, if $b=0$, then $a+bi=a$, which is a real number. Thus, the set of real numbers is a subset of the set of complex numbers. This means that every real number is also a complex number.
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