In this video, we're going to do it in the opposite direction. We're going to use derivatives to figure out limits. In particular, limits that end up in indeterminate form. When I say by indeterminate form, I mean that when we just take the limit as it is, we end up with something like 0 over 0 or infinity over infinity or negative infinity over infinity. All of these are indeterminate, undefined forms. To do that, we're going to use L'Hopital's Rule. In this video, I'm just going to show you what L'Hopital's Rule says and how to apply it.