?Assume that all the given functions are differentiable.If \(z=f(x, y)\), where \(x=r
Chapter 12, Problem 49(choose chapter or problem)
Assume that all the given functions are differentiable.
If \(z=f(x, y)\), where \(x=r \cos \theta\) and \(y=r \sin \theta\), (a) find \(\partial z / \partial r\) and \(\partial z / \partial \theta\) and show that
\(\left(\frac{\partial z}{\partial x}\right)^{2}+\left(\frac{\partial z}{\partial y}\right)^{2}=\left(\frac{\partial z}{\partial r}\right)^{2}+\frac{1}{r^{2}}\left(\frac{\partial z}{\partial \theta}\right)^{2}\)
Equation Transcription:
Text Transcription:
z=f(x,y)
x=r cos theta
y=r sin theta
partial z/partial r
partial z/partial theta
(partial z/partial x)^2+(partial z/partial y)^2=(partial z/partial r)^2+1/r^2(partial z/partial theta)^2
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