Find the exact value of cos(a – B) given that sin a = and cos 3 = - for a in Quadrant II and B Quadrant III.

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter2: Analytic Trigonometry
Section2.4: Sum And Difference Formulas
Problem 3ECP: Find the exact value of cosu+v given sinu=1213, where 0u2 and cosv=35, where 2v.
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Find the exact value of cos(a – B) given that sin a = and cos 3 = - for a in Quadrant II and B
Quadrant III.
Transcribed Image Text:Find the exact value of cos(a – B) given that sin a = and cos 3 = - for a in Quadrant II and B Quadrant III.
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