Answer
See below.
Work Step by Step
Using the given identities: $\cot(-\theta)=\frac{\cos(-\theta)}{\sin(-\theta)}=\frac{\cos(\theta)}{-\sin(\theta)}=-\frac{\cos(\theta)}{\sin(\theta)}=-\cot(\theta)$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 14 Trigonometric Graphs, Identities, and Equations - 14.3 Verify Trigonometric Identities - Guided Practice for Examples 4, 5, and 6 - Page 927: 6
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