#### Answer

$$\cos\theta$$

#### Work Step by Step

Use the Cotangent Identity:
$$\cot\theta=\frac{\cos\theta}{\sin\theta}.$$
To obtain
$$\sin\theta\cot\theta=\sin\theta\bigg(\frac{\cos\theta}{\sin\theta}\bigg)=\cos\theta.$$

Published by
Prentice Hall

ISBN 10:
0133186024

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

$$\cos\theta$$

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