- #1

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## Main Question or Discussion Point

As of now I'm completely confused on how to prove that a limit of several variables exist. I know that if you plug a bunch of functions in and you get the same results you can start to think the limit exists but without proof it's pointless...

So for example:

lim (x^2 (sin^2 y)) / (x^2+2y^2)

(x,y)->(0,0)

I know it involves using the squeeze theorem but thats about all I know. Any help would be appreciated.

So for example:

lim (x^2 (sin^2 y)) / (x^2+2y^2)

(x,y)->(0,0)

I know it involves using the squeeze theorem but thats about all I know. Any help would be appreciated.