Answer
$\frac{3\pi}{4}, \frac{7\pi}{4}$
Work Step by Step
$tan\theta+1=0 \longrightarrow tan\theta=-1 \longrightarrow \theta=\pi-\frac{\pi}{4},2 \pi-\frac{\pi}{4} \longrightarrow \theta=\frac{3\pi}{4}, \frac{7\pi}{4}$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 7 - Analytic Trigonometry - 7.3 Trigonometric Equations - 7.3 Assess Your Understanding - Page 466: 17
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