Write each expression as a single trigonometric function.   cos 5x cos x - sin 5x sin x

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
Section5.2: Sum And Difference Formulas
Problem 29PS
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Write each expression as a single trigonometric function.

 

cos 5x cos x - sin 5x sin x

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