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Math Help - proving equation

  1. #1
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    proving equation

    Given that y=1/(2+sin2x)

    show that d^2y/dx^2=2/y(dy/dx)^2+4y^2sin2x
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  2. #2
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    Re: proving equation

    First, find \frac{dy}{dx} and \frac{d^2y}{dx^2}. Substitute those expressions into the equation you are trying to prove, and see if you get equality.
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