47) 2banx 1-tan³x + = cosxtsinx 2009X cosx 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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as Ex) (sin²a/sin²0) cost)
(cosx)(snosine)
+ (Sin²x) ²
cos²x
st)
XUICK-1)
COSA) COSX
(sinx \sin
47) 20x tro cosx sin
= cosxtsinx
1-tan³x
cos
x-sinx=cos²x-sin
Transcribed Image Text:as Ex) (sin²a/sin²0) cost) (cosx)(snosine) + (Sin²x) ² cos²x st) XUICK-1) COSA) COSX (sinx \sin 47) 20x tro cosx sin = cosxtsinx 1-tan³x cos x-sinx=cos²x-sin
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