It has been a while since I have done limis now, and I want to make sure I am doing this correctly.(adsbygoogle = window.adsbygoogle || []).push({});

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.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# How to find/prove this two variable limit

**Physics Forums | Science Articles, Homework Help, Discussion**