Answer
$$\sin\theta$$
Work Step by Step
Use the Tangent Identity:
$$\tan\theta=\frac{\sin\theta}{\cos\theta}$$
To obtain:
$$\cos\theta\tan\theta=\cos\theta\bigg(\frac{\sin\theta}{\cos\theta}\bigg)=\sin\theta$$
Algebra 2 Common Core
by Hall, Prentice
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 - Page 908: 21
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