September 4, 2009
No CommentsAn Overview of l’Hôpital’s Rule
Description
This video explains how to properly use l’Hôpital’s Rule and tells us why it is sometimes necessary to use l’Hôpital’s Rule instead of another method of finding the limit. This video also gives several example problems of how to use l’Hôpital’s Rule.
Overview
l’Hôpital’s Rule is a rule of calculus that helps when evaluating the limit to infinity. l’Hôpital’s Rule states that:
d/dx [f(x) / g(x)] = d/dx [f\'(x) / g\'(x)]
In other words, l’Hôpital’s Rule says that when you need to find the limit of a division equation, you may find the derivative of the numerator and denominator seperately and place them into your equation. Do not use the quotient rule to find an overall derivative or this will not work.
