Can anyone provide me with insights on limits?(adsbygoogle = window.adsbygoogle || []).push({});

Like L' Hospital rule (don't know whether spelt right), and product rule such as [tex] lim_{x\rightarrow\a} [f(x)g(x)] = lim_{x\rightarrow\a} f(x) \cdot lim_{x\rightarrow\a} g(x) [/tex] should [tex] lim_{x\rightarrow\a} f(x) [/tex]and [tex]lim_{x\rightarrow\a} g(x) [/tex] exists.

And oh, the product rule, which I'm pretty sure I read from some course notes, stating that only when [tex]lim_{x\rightarrow\a} g(x) [/tex] and [tex] lim_{x\rightarrow\a} f(x) [/tex] exists, what is the definition of existing? A finite value? Non-zero?

Oh and could anyone provide me with some reading material on this topic?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Limits - Please provide some good reading materials!

**Physics Forums | Science Articles, Homework Help, Discussion**