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Homework Help: Partial Differentiation with 2 variables

  1. Mar 16, 2010 #1
    1. The problem statement, all variables and given/known data

    When I write 'd' I mean the partial differentiation symbol 'del' here...

    Find dz/dx and dz/dy of:

    z=f(xy)

    I'm guessing this isn't a case of simply pretending the 'f( )' isn't there, how do I approach this problem?

    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Mar 17, 2010 #2
    when you say
    dz/dx
    you want to find the first partial derivative of z in terms of x.
    meaning, that you treat y as a constant and x as a veritable

    similarly goes with dz/dy
     
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