4.2.39 Question Help Find the exact value of the given trigonometric function. Do not use a calculator. 97T COs 9T COs 4 (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
Section7.1: Verifying Trigonometric Identities
Problem 75E
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Find the exact value of the given trigonometric function

cos             9pie

             ______________

                      4

 

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4.2.39
Question Help
Find the exact value of the given trigonometric function. Do not use a calculator.
97T
COs
9T
COs
4
(Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)
Transcribed Image Text:4.2.39 Question Help Find the exact value of the given trigonometric function. Do not use a calculator. 97T COs 9T COs 4 (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)
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