1. Given sinx 12 and cos y : 13 both x and y lie in sxs, determine a) cos(x+y) b) sin 2y

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 54E
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12
and cos y = -
13
4
1. Given sinx=
both x and y lie in sxs, determine
a) cos(x+y)
b) sin 2y
Transcribed Image Text:12 and cos y = - 13 4 1. Given sinx= both x and y lie in sxs, determine a) cos(x+y) b) sin 2y
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