hi need help with this proof, i just need someone to show me what the next step is so i can hopefully figure out the rest myself, im just completely stuck right now. THANKS!

( cos^2x - sin^2x ) / sin^2x = -csc^2x

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- November 7th 2009, 01:54 PM #1

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- November 7th 2009, 02:05 PM #2

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