Wednesday
April 1, 2015

Homework Help: partial differentiation

Posted by pakh on Tuesday, February 3, 2009 at 4:53am.

u(x,y)=xln(x^2+y^2)-(2y times inverse of tan of y/x)
1)find derivative of u wrt to x and then wrt y
2)show that (x times derivative of u wrt x)+(y times derivative of u wrt y) = u +2x

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