The chain rule (PDE)

  1. Im new on the forum, so I hope you guys will have some patience with me :-)

    I have a question about the chain rule and partial differential equations that I cant solve, it's:

    Write the appropriate version of the chain rule for the derivative:

    ∂z/∂u if z=g(x,y), where y=f(x) and x=h(u,v)

    I have tried to do a dependence chart of it, but it's just not working for me.

    Thank you very much.
  2. jcsd
  3. ∂z/∂u=(∂z/∂x)(∂x/∂u)+(∂z/∂y)(dy/dx)(∂x/∂u)

    Draw a diagram. It is pretty straightforward.
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