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Mathematics, 13.07.2019 17:10 youngdelvin123

Prove that sin^2a/cos^2a + cos^2a/sin^2a = 1/cos^2a*sin^2a - 2

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Prove that sin^2a/cos^2a + cos^2a/sin^2a = 1/cos^2a*sin^2a - 2...

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