Smplify cos(; + x) (you may use an addition or subtraction formula). i) cos(r) ii) sin(x) iii) – sin(x) iv) not listed

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.2: Trigonometric Equations
Problem 75E
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10. Smplify cos(+ x) (you may use an addition or subtraction formula).
i) cos(r)
ii) sin(x)
iii) – sin(x)
iv) not listed
Transcribed Image Text:10. Smplify cos(+ x) (you may use an addition or subtraction formula). i) cos(r) ii) sin(x) iii) – sin(x) iv) not listed
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