Prove each of the following identities. (a) cosec 2x + cot 2x cosec 2x 7. - cosec x %3D 1+ cos x + cos 2x (b) = cot x sin x + sin 2x k) sin' x + cos'x = (sin x + cos x) 1- sin 2.x Sth sin ' 플 = tan x- sin x 2 2 tan x

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A: you can clearly understand if you follow the below solution