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If sin A = 5 with A in QII, and sin B = with B in QIV, find cos(A-B)

If sin A = 5 with A in QII, and sin B = with B in QIV, find cos(A-B)

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.1: Verifying Trigonometric Identities
Problem 64E
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Question
If sinA= 4/5 with A in QII, and sinB= -3/5 with B in QIV, find cos(A-B)
4 3. If sin A with A in QII, and sin B with B in QIV, find %3D cos(A-B)
Transcribed Image Text:4 3. If sin A with A in QII, and sin B with B in QIV, find %3D cos(A-B)
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