Basic Limit Laws. Return to the Limits and l'Hôpital's Rule starting page. Listed here are a couple of basic limits and the standard limit laws which, when used in. Limit Rules. Useful rules for finding limits: In the following rules assume k = constant lim x→c k = k lim x→c kf(x) = k lim x→c f(x). Remark. Do not treat $\pm\infty$ as ordinary numbers. These symbols do not obey the usual rules of arithmetic, for instance, $\infty +1=\infty$, $\infty -1=\infty$.
Limit rules - habe
Limit rules - Cash Out