Use the fact that the trigonometric functions are periodic to find the exact value of the given expression. 9T Cos 4

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.1: Verifying Trigonometric Identities
Problem 71E
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Use the fact that the trigonometric functions are periodic to find the exact value of the given expression. Do
9T
COS
4.
9t
Cos
4
(Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)
ols
Transcribed Image Text:Use the fact that the trigonometric functions are periodic to find the exact value of the given expression. Do 9T COS 4. 9t Cos 4 (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.) ols
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