Prove each of the following identities.  (sin x 2 cos x)2 =1 - sin 2x

Trigonometry (MindTap Course List)
8th Edition
ISBN:9781305652224
Author:Charles P. McKeague, Mark D. Turner
Publisher:Charles P. McKeague, Mark D. Turner
Chapter5: Identities And Formulas
Section5.1: Proving Identities
Problem 47PS: Prove that each of the following identities is true. sint1+cost=1costsint
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Prove each of the following identities.

 (sin x 2 cos x)2 =1 - sin 2x

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