Answer
True
Work Step by Step
We know:
$$\cos \left(\frac{\pi }{3}\right) =\frac{1}{2}$$
Thus, it follows that the arccosine of 1/2 must equal $(\frac{\pi }{3})$.
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: 75
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