(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

use definition for the limit of a function to show that

[tex]\lim_{(x,y)\rightarrow (0,0)} xcos\frac{1}{y}[/tex]

2. Relevant equations

n/a

3. The attempt at a solution

fisrt, i assumed it the limit is 0(i dont know if it is true), but i showed it, but something bugging me, i put in wolframalpha it says the limit does not exist, http://www.wolframalpha.com/input/?i=lim+xcos(1/y),(x,y)->(0,0)

so who is wrong here?

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# Wolframalpha it says the limit does not exist

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