1 Answered Questions for the topic Addition Formulae

Addition Formulae Trigonometry Addition Formula

03/30/16

Prove identity (tan A + tan B) / (tan A - tan B) = (sin (A+B)) / (sin (A-B))
I have to prove the identity :   (tan A + tan B) / (tan A - tan B) ≡ (sin (A+B)) / (sin (A-B))      Please help me with a detailed solution and the detailed steps, that would be great! 
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