2 banx -tan³x 7 COS X = COS ³x 2cas x-1 =Casy+Sinx QSX-Sinx

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 40E
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Prove identity
2 banx + 2005 *x-1
1-tan ²x
COS" x = cos x
CO
Casx+5inx
2005X COSX Sin
Transcribed Image Text:2 banx + 2005 *x-1 1-tan ²x COS" x = cos x CO Casx+5inx 2005X COSX Sin
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