There are many kinds of positive infinity, depending on the equivalence between two numbers and that infinity: for example, limit (n->; Infinity) n = infinity; And restrictions (n->; Infinity) n 2 = = infinity, can you say that two subtractions are equal to 0? There are also restrictions (n->; Infinity) n = infinity, limit (n->; Infinity) n+ 1 = infinity, and the subtraction of two numbers is equal to 1 or-1. Can you say it is equal to 0 or infinity?

So this can neither be said to be equal to 0 nor equal to infinity; Specific analysis of specific problems!

It seems that you have to read the advanced mathematics textbook for freshmen! Understand equivalent infinity and equivalent infinitesimal) Good luck!