Find the exact value of cos(4x) if tan(x) = -2,2
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.3: Trigonometric Functions Of Real Numbers
Problem 49E
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![Find the exact value of cos(4x) if tan(x) = -2,2
-2,7 <y<T.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7d5bbf1e-6222-4f7f-b5c7-eb8361037132%2Fac714bf3-e157-4d82-aef7-b541cd1fce6d%2Fbj0vl6o_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Find the exact value of cos(4x) if tan(x) = -2,2
-2,7 <y<T.
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