Just to clarify, the limit of $x \nearrow 0$ from the left of $1/x$, would be $-\infty$, and the limit of $x \searrow 0$ from the right of $1/x$, would be $+\infty$ right?
This is only true when its $1/x$ and not any other number over $x$? Sorry if this is confusing, are there certain formulas to know when the limit equals infinity?
Like the limit of $x \to 0$ of $1/x^2 = +\infty$
Thanks for any help, again sorry if this is confusing. I'm just trying to understand how to know when a limit equals infinity, rather then it does not exist.