Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 7 - Trigonometric Identities and Equations - 7.2 Verifying Trigonometric Identities - 7.2 Exercises: 34

Answer

$\cos\alpha$

Work Step by Step

$\cot\alpha\sin\alpha$ $=\frac{\cos\alpha}{\sin\alpha}*\sin\alpha$ $=\cos\alpha$
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