Question

Asked Sep 30, 2019

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(∂z/∂x)^{2} + (∂z/∂y)^{2} = (∂z/∂r)^{2} + (1/r^{2}) (∂z/∂θ)^{2}

Step 1

The equation to be proved is,

Step 2

Consider *z* = *f *(x,y) and the partial der...

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