(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

z = f (x^2 + y^2)

prove using multi var chain rule that

y * dz/dx - x * dz/dy = 0

2. Relevant equations

3. The attempt at a solution

honestly i just need to no how to start it then im sure i could figure the rest out

so i would find dz/dx and dz/dy then what would x and y be? and do i substiude any values of x and y to prove it works?

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# Homework Help: Multivariable chain rule

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