I'm trying to find which if it exists is obviously 2. I need an epsilon-delta argument but haven't made any progress. If I could find something like that might help but this is false for small values.

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- Feb 27th 2011, 07:14 PMragnarEpsilon-Delta Argument for a Function in Two Variables
I'm trying to find which if it exists is obviously 2. I need an epsilon-delta argument but haven't made any progress. If I could find something like that might help but this is false for small values.

- Feb 27th 2011, 07:39 PMTKHunny
Have you considered a substitution? W = x^2 + y^2.

- Feb 27th 2011, 07:54 PMragnar
I solved it. The result is trivial when you switch to polar coordinates.