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Please help me check this

  1. Nov 5, 2006 #1
    I have to find the 3 partial derrivatives of f(x,y,z) = x^2yz+3y-xcos(3yz)

    I have solved for df/dx and df/dy and here are my solutions:

    df/dx = 2xyz-cos3yz
    df/dy = x^2z+3+3xzsin3yz

    are these correct so i can continue with the problem?

    Thanks for the help.
  2. jcsd
  3. Nov 5, 2006 #2


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    Yup, they are!:smile:
    Just treat the other variables as constants.
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