sin (л+A) cos (л-A) tan (л+A)-cos A cos (л-A)= 5. (a) sin 2 A (b) cos 2 A (c) 1 (d) 2 cos² A

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 59E
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sin (л+A) cos (л-A) tan (л+A)-cos A cos (л-A)=
5.
(a)
sin 2 A
(b) cos 2 A
(c) 1
(d) 2 cos² A
Transcribed Image Text:sin (л+A) cos (л-A) tan (л+A)-cos A cos (л-A)= 5. (a) sin 2 A (b) cos 2 A (c) 1 (d) 2 cos² A
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