my calculus answer is that usually you see 0/0 when looking for limits
1/0 definitely has no real value
0/0 might have one, but you've framed the question poorly -- if you rewrite the problem in a different way, you might find the value of 0/0 for your case eg, by applying L'Hôpital's rule
1/0 definitely has no real value 0/0 might have one, but you've framed the question poorly -- if you rewrite the problem in a different way, you might find the value of 0/0 for your case eg, by applying L'Hôpital's rule