Prove the following identities: tan(v) + cot(v) (a) sec(v) csc(v) 1- sin(0) (b) cos(0) 1 SE cos(8) 1+ sin(0) cos (0) – sin?(0) (c) 1- tan? (0) - = cos (0) = COS (2 cos (0) – 1)? (d) cos (0) – sin (0) = 1 – 2 sin? (0)

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