Understanding Limits and L’Hospital’s Rule

We learned about limits earlier in this series. We know what they represent, and we know how to evaluate them. Then we found that we don’t need them that much, because we have better methods for differentiating functions than all that business with tangent lines and limits. But limits still have applications, and we can use them to find out the value of a function at a certain point when we can’t figure this out from the function itself. How? With L’Hospital’s rule!

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