Main Ideas

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Here are the main points that will be addressed in the video. Please read these and think about them as you watch.

The ratio $f(x)/g(x)$ is approximated by the ratio of slopes, $f'(a)/g'(a)$ as we zoom in at $a$ .
L’Hopital’s rule can be used when a ratio $f(x)/g(x)$ has a limiting value of either 0/0 or $\infty /\infty$
L’Hopital’s rule can be applied more than once if applying L’Hopital’s rule results in a limit which is again of the form 0/0 or $\infty /\infty$
Sometimes limits can be rewritten to be of the form 0/0 or $\infty /\infty$