Question: 2. Prove each identity. Use proper mathematical format for a proof. VV vv Each. a) 1 + cos 0 = - sin2 0 b) csc

2. Prove each identity. Use proper mathematical format for a proof. VV vv Each. a) 1 + cos 0 = - sin2 0 b) csc 0- 2 1-cose = cos 20 csc 0 c) cos x = sin x tan x cot3 x d) cos(2A + A) = -3 cos A + 4 cos3 A

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