Answer
See below.
Work Step by Step
In case of $y=\tan^{-1} x$, $y$ will be an angle between $-\pi/2$ and $\pi/2$ by definition.
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 260: 8
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