cos (2x)

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter2: Analytic Trigonometry
Section2.1: Using Fundamental Identities
Problem 1ECP: Use the conditions tanx=13 and cosx0 to find the values of all six trigonometric functions.
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Use the figure to find the exact value of the
following trigonometric function.
cos (2x)
cos (2x) = (Simplify your answer.)
3
4
α
Transcribed Image Text:Use the figure to find the exact value of the following trigonometric function. cos (2x) cos (2x) = (Simplify your answer.) 3 4 α
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