Answer
$\sin \theta$
Work Step by Step
Use the identity $\sin 2 \theta =2 \sin \theta \cos \theta$
or, $=2 \sin (\theta/2) \cos (\theta/2)$
or, $=\sin [2 \times (\theta/2)]$
or, $=\sin \theta$
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 - 14.7 Apply Double-Angle and Half-Angle Formulas - 14.7 Exercises - Skill Practice - Page 960: 26
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