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Homework Help: Implicit Differentiation

  1. Jan 10, 2010 #1
    1. The problem statement, all variables and given/known data

    Use implicit differentiation to find dy/dx if y - sin(xy) = x^2.

    What I've got is dy/dx y - cos(xy)(y+x dy/dx) = 2x

    I don't know what I did and I don't know where to go from here.
    Last edited: Jan 10, 2010
  2. jcsd
  3. Jan 10, 2010 #2


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    Homework Helper

    You will need to post your attempt.
  4. Jan 11, 2010 #3


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    slight mistake: [tex]\frac{d}{dx}(y)\ne\frac{dy}{dx}y[/tex]

    after differentiating, group like terms and factor out the y'
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