SOLUTION: prove using the t = tan (x/2) [tan 2x + cotx] / [tan2x - tanx]

SOLUTION: prove using the t = tan (x/2) [tan 2x + cotx] / [tan2x - tanx] - cot^2 x

Question 1142135: prove using the t = tan (x/2)
[tan 2x + cotx] / [tan2x - tanx] - cot^2 x
Answer by ikleyn(52803)   (Show Source): You can put this solution on YOUR website!
.

Prove WHAT ?

        As this post is presented, it makes no sense.

                It does not say WHAT to prove.

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