u=ln(x^2+y^2)

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Solution for u=ln(x^2+y^2) equation: 


Simplifying
u = ln(x2 + y2)
u = (x2 * ln + y2 * ln)
u = (lnx2 + lny2)

Solving
u = lnx2 + lny2

Solving for variable 'u'.

Move all terms containing u to the left, all other terms to the right.

Simplifying
u = lnx2 + lny2

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