Use a half angle or reduction formula to fill in the blanks in the identity below: (cos(3x))^2

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter1: Trigonometry
Section1.7: Inverse Trigonometric Functions
Problem 4ECP: Use a calculator to approximate the value of each expression, if possible. a. arctan4.84 b....
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Use a half angle or reduction formula to fill in the blanks in the identity below:


(cos(3x))^2

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