Ο 0.087

Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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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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