1- cos 4x 9. sec2 2x – 1 = 1+ cos 4x

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.5: Product-to-sum And Sum-to-product Formulas
Problem 25E
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1-
cos 4x
9. sec2 2x –1 =
1+ cos 4x
Transcribed Image Text:1- cos 4x 9. sec2 2x –1 = 1+ cos 4x
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