#### Answer

$$\sin\theta$$

#### Work Step by Step

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

Published by
Prentice Hall

ISBN 10:
0133186024

ISBN 13:
978-0-13318-602-4

$$\sin\theta$$

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