Question

If u=x^2tan^-1(y/x) -y^2tan^-1(x/y),then find 2nd order partial derivative of u

Answer 1

domalel4

gomole of He-

Total of moles

L

=1

1 Solution has 46%, wher) GHOH in weater

and molo prication of CHE OH.

Super bapPm en solution

yer de present in 16 of salon