VERIFY THE IDENTITY Sin(A+B) Sin(A-B) = Sin^2 A-Sin^2B

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 41E
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VERIFY THE IDENTITY Sin(A+B) Sin(A-B) = Sin^2 A-Sin^2B
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