12. Given xcsc(v) – cot(v) = 1, what is y'? 1 A) х coty - cscy 1 B) x csc*y- secy 1 C) x tany – csc²y 2 1 D) x cscу — secy

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A: As per guidelines we can solve only one question at a time so please repost other question.

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