25) n S sin (+) n s

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 21E
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Find the value of 

 

25) Σn sin (2)
21
Transcribed Image Text:25) Σn sin (2) 21
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