Ο 0.087

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 88E
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Question
If cos 65⁰ + cos 55⁰ = cos x, then what is one possible solution x
in radians?
0.765
O 1.421
0.087
1.213
Transcribed Image Text:If cos 65⁰ + cos 55⁰ = cos x, then what is one possible solution x in radians? 0.765 O 1.421 0.087 1.213
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