Can someone explain l'hopitals rule to me or give me a good resource to learn it? I wasn't in class the day that it was taught, and I don't really understand the explanations that are given in the book.
Khan Academy for all low-level school stuff.
If you have a limit that results in an indefinite, differentiate the top and bottom separately until you don't get an indefinite
Use Taylor approximations, L'Hospital sucks dick.
Signed,
Every physicist ever