Sin(alpha)=3/5 and 0

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section: Chapter Questions
Problem 10DE
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Sin(alpha)=3/5 and 0<alpha<pi/2 and cos(beta) = (2sqroot5)/5 and -pi/2<beta<0. Use these domains to find the exact values (no decimals) for the following while showing all work involved and then illustrate each on the unit circle. A.) sin(alpha+beta) B.) cos(alpha+beta) C.) tan(alpha-beta) D.) sin(2alpha) E.) cos(2beta) F.) cos(alpha/2) G.) sin(beta/2) 

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