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Prove: (cotx sinx)(secx-cosx)=sin^2(X)

  • Trig -

    (cosx/sinx X sinx)(1/cosx - cosx) = sin^2x

    (cosx)(1-cos^2x) /cosx = sin^2x

    1-cos^2x = sin^2x

    sin^2x = sin^2x


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