- #1

- 122

- 0

I have the problem listed below

[itex](x-y)/(x+y) as (x,y) -> (0,0)[/itex]

In my mind I can gather that it will asymptote as you approach from either (-1,1) or (1,-1)

I also know that it will asymptote in opposite directions, and as far as I know this is what defines a function to have "no limit".

I am just wondering what I need to state algebraicly in order to "prove" this limit.