Prove the following identity by working only on the left side of the equation.  (sinx)(cotx + cosxtanx) = cosx + sin^2x

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 41E
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Prove the following identity by working only on the left side of the equation. 

(sinx)(cotx + cosxtanx) = cosx + sin^2x

(sinx)(cotx + cos x tan x) = cos x + sin’ x
Transcribed Image Text:(sinx)(cotx + cos x tan x) = cos x + sin’ x
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