Establish the identity sin Which of the following four statements establishes the identity? O A. sin OB. sin OC. sin 3t 2 Зл 3 2 = sin 11 3π 37 +0) = - cos 0. sin = sin 3π - 2 3π - 2 3 - 2 cos + cos sin 8- cos - cos - cos Зл 2 sin 0=(-1) cos 0 + (0) sin 0= - cos 0 Ꮎ Зл cos 0=(-1) cos 0-(0) sin 0= - cos 0 2 3π sin 8=(-1) cos 0-(0) sin 0= - cos 0 2

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A: let B=cotx+tanxwe know, tanx=sinxcosx  and  cotx=cosxsinx

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