Find the exact value of cos 255⁰. √3-√2 2 √2-√6 4 √2+√6 4 4 2

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.2: Trigonometric Equations
Problem 55E
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Find the exact value of cos 255⁰.
√3-√2
2
√2-√6
4
√2+√6
4
2
Transcribed Image Text:Find the exact value of cos 255⁰. √3-√2 2 √2-√6 4 √2+√6 4 2
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