Answer
False
Work Step by Step
The inverse cosine function is restricted to be between -1 and 1, so it follows that its domain is not all real numbers. Thus, the given statement is $ \fbox {false} $.
Functions Modeling Change: A Preparation for Calculus, 5th Edition
by Connally, Eric; Hughes-Hallett, Deborah; Gleason, Andrew M.; Cheifetz, Phil C.
Published by
Wiley
ISBN 10:
1118583191
ISBN 13:
978-1-11858-319-7
Chapter 7 - Trigonometry and Periodic Functions - Strengthen Your Understanding - Page 321: 64
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