- #1

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## Homework Statement

In this exercice I'm asked to find out if the limif of the function f(x,y) exists.

lim

_{(x,y)→(0,0)}sqrt(x*y) / (x^2 - y^2)

## Homework Equations

## The Attempt at a Solution

I've tried to approach it from different coordinates (y=x, y=0, x=0, y=sqrt(x),...) but I didn't found any limit...

I also tried to prove it didn't exist with the iteration property without luck...

Any hint would be highly appreciated.

Thanks.