*¨^(-1)]. Find the exact value of cos 2 cos cos [2 cos ¹(-2)]=0 (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section: Chapter Questions
Problem 72RE
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Question
Find the exact value of cos 2 cos
[2 cos -¹ (-1)]
cos 2 cos
-1(---))-0
=
(Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)
Transcribed Image Text:Find the exact value of cos 2 cos [2 cos -¹ (-1)] cos 2 cos -1(---))-0 = (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)
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