Establish the identity.csc3 x tan2 x = csc x (1 + tan2 x)

What will be an ideal response?

csc3 x tan2 x = csc x tan2 x (1 + cot2 x) = csc x (1 + tan2 x).

Mathematics

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A.

B.

C.

D.

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A. x =  + 2n? or x =  + 2n?
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Mathematics