Answer
$\frac{\pi}{6}$
Work Step by Step
The range of $\arccos x$ is $0\leq\arccos x\leq\pi$.
The angle between 0 and $\pi$ whose cosine is $\frac{\sqrt 3}{2}$ is $\frac{\pi}{6}$.
$\arccos (\frac{\sqrt 3}{2})=\frac{\pi}{6}$.
Trigonometry 7th Edition
by McKeague, Charles P.; Turner, Mark D.
Published by
Cengage Learning
ISBN 10:
1111826854
ISBN 13:
978-1-11182-685-7
Chapter 4 - Section 4.7 - Inverse Trigonometric Functions - 4.7 Problem Set - Page 261: 35
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