Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Chapter 14 - Trigonometric Identities and Equations - 14-1 Trigonometric Identities - Practice and Problem-Solving Exercises: 21

Answer

$$\sin\theta$$

Work Step by Step

Use the Tangent Identity: $$\tan\theta=\frac{\sin\theta}{\cos\theta}$$ To obtain: $$\cos\theta\tan\theta=\cos\theta\bigg(\frac{\sin\theta}{\cos\theta}\bigg)=\sin\theta$$
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