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### Zero and infinite

You should always take care for divisions where **zero and infinite** are used.

##### Explanation

We use l'Hôpital's rule, and start with

This is a simple calculation. Should it also work with infinite? Let us have a look

That is surprising. *What is going on here?* We do **not** say that we found a solution for

but that we have an answer, if the limit of is concerned.