I need help solving these 2 proofs:(adsbygoogle = window.adsbygoogle || []).push({});

(sec^2x-1)/(sec^2x) = sin^2x

I am not sure what direction to go in. I know the top of the left side could be changed into:

tan^2x/sec^2x, but I don't know what to do after that.

The second one I need help with is:

cos^2x/(1+tan^2x) = cot^2x

I simplified it into:

cos^2x/sec^2x = cos^2x/sin^2x, but I don't know what to do after that. Can you help me get the next few steps of these problems? Thanks!

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# Homework Help: Help with proofs

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