SOLUTION: simplify sin^2y/sec^2y-1

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Question 1200247: simplify sin^2y/sec^2y-1
Answer by Alan3354(69443) About Me  (Show Source):
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simplify sin^2y/sec^2y-1
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sin%5E2%28y%29%2Fsec%5E2%28y%29-1
= sin%5E2%28y%29%2Acos%5E2%28y%29+-+1