how to prove cotsquared 2A=(1 + sin 2A)/1-sin2A

Question

how to prove cot squared 2A=(1 + sin 2A)/1-sin2A

5/5/2014 | Jeff from Clarkston, MI

Answer 1

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how to prove cot squared 2A=(1 + sin 2A)/1-sin2A

5/5/2014 | Jeff from Clarkston, MI

Answer 2

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Answer 3

Jeff, I think you have an error in your transcription

Take a look at this link

I've graphed the left hand side (cot^2(2A)) in yellow and the right hand side in blue.

If you have an identity, their graphs have to be identical.

5/6/2014 | John M.

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