Math Chapter Wise Trigonometrical Identities And Circular Function English MCQ Rajasthan TGT 2016 Q.For a triangle ABC, with sides a, b, c the ratio of sin(A–B) to sin (A+B) is A2 2 2 b c a + B2 2 b c bc − C2 2 2 a b c − D2 2 a b ab − Show answer Correct answer: 2 2 2 a b c −