Find cos 0. A) cos 0 8 √145 9 B) cos 0 9145 145 C) cos 0- 8√/145 145 D) cos 0- √145 8

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 26E
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Find cos 0.
8
A) cos 0 =
√145
9
e
B) cos 0
9145
145
C) cos 8-
8√ √145
145
D) cos 0-
145
8
Transcribed Image Text:Find cos 0. 8 A) cos 0 = √145 9 e B) cos 0 9145 145 C) cos 8- 8√ √145 145 D) cos 0- 145 8
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