Verify the identity. sec 0• sin 0• cot 0 =1 --- Which of the following four statements establishes the identity? O A. sec 0• sin 0. cot 0= sin e sin e = 1 cos e • sin 0. os e = 1 sin 0 B. sec 0. sin 0. cot 0= • sin 0. cos e 1. C. sec 0. sin 0. cot 0 = sin 0 • sin 0. = 1 cos e cos e 1 D. sec 0. sin 0. cot 0= cos e • sin 0. sin e = 1 sin 0

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Q: VII. Verify the identity. 11.) sin 3x = 3 sin x-4 sin3 x

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A: We need to prove the given identity.