Simplify cos(x-7) 2 to a single trig function using a sum or difference of angles identity.
Simplify cos(x-7) 2 to a single trig function using a sum or difference of angles identity.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.3: The Addition And Subtraction Formulas
Problem 15E
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