Answer
$\frac{\pi}{2}, \frac{3\pi}{2}$
Work Step by Step
From the graph plotted earlier, it can be clearly noted that values of x for which cot x = 0, such that $0\leq\, x\leq2\pi$, are $\frac{\pi}{2}\, and \frac{3\pi}{2}$.
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 192: 30
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