# Homework Help: Limit of function

1. Sep 21, 2016

1. The problem statement, all variables and given/known data
Is it true that e find that the function is undefined and we can't simplify them, then the limit of multivariable function is surely doesn't exist

http://imgur.com/a/cihXu

2. Relevant equations

3. The attempt at a solution
Is it possible that we already try many different of y = x^n , n is all real number , the limit still the same ? ( the limit of function actually not exist , but in our working we have tried many different of y = x^n , n is all real number , we keep on getting the limit of the graph still the same ) ?

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2. Sep 21, 2016

### BvU

HI,
What is it you are asking ? Limits of $f(x,y)$ are a different matter than limits of $y = f(x)$ !

3. Sep 21, 2016

yes
yes , i am asking a limit of f(x,y)

4. Sep 21, 2016

### BvU

So why write $y=x^n$ ?

5. Sep 21, 2016

in 3rd attempt , the author want us to try substuiting different value of curves / lines into the function... so i use y = x^n

6. Sep 21, 2016

### BvU

Did you forget to tell us what function it is you are investigating ? And what limit at what point (a,b) ?

7. Sep 21, 2016