Verify the following results sin 4x = 8 cos3 x sin x − 4 cos x sin x
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 35E
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Verify the following results
- sin 4x = 8 cos3 x sin x − 4 cos x sin x
- tan2 x =1−cos 2x
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