Answer
$c.\frac{\pi}{2},\frac{3\pi}{2}$
Work Step by Step
Here For sex x, the values for x to be undefined are multiplies of $\frac{\pi}{2}$.
Thus the options (c0 will be the correct answer.
$c.\frac{\pi}{2},\frac{3\pi}{2}$
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 4.1 - Basic Graphs - 4.1 Problem Set - Page 194: 76
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