Trigonometry (11th Edition) Clone

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

Chapter 4 - Test - Page 193: 3a


$(-\infty, \infty)$

Work Step by Step

The graph of the cosine function shows that the domain of the cosine function consists of all real numbers. This means that the domain of the cosine function can be written as $(-\infty, \infty)$.
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