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10. Find the exact value of cos(a – B) given the following. Simplify completely. Show formulas used and substitutions made. 3 37 sin (a)

10. Find the exact value of cos(a – B) given the following. Simplify completely. Show formulas used and substitutions made. 3 37 sin (a)

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 3E
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Find the exact value of cos(a – B) given the following. Simplify completely. 10. Show formulas used and substitutions made. 3 37 -<α< 2π 7'2 sin (a) 1 cos (B) 37 n<B < 2 3
Transcribed Image Text:Find the exact value of cos(a – B) given the following. Simplify completely. 10. Show formulas used and substitutions made. 3 37 -<α< 2π 7'2 sin (a) 1 cos (B) 37 n<B < 2 3
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