Answer
$$(\sin\theta+1)(\sin\theta-1)$$
Work Step by Step
$$\sin^{2}\theta-1$$
Factor out using the Difference of Squares
$$(\sin\theta+1)(\sin\theta-1)$$
Trigonometry (11th Edition) Clone
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
978-0-13-421743-7
ISBN 13:
978-0-13421-743-7
Chapter 5 - Trigonometric Identities - Section 5.2 Verifying Trigonometric Identities - 5.2 Exercises - Page 208: 23
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