Page 43 - Calculus for the Clueless, Calc II
P. 43

so






        Example 5—



        Here we need to use L'Hopital's rule twice.







        so






        Example 6—

                       This turns out to be zero times infinity (minus infinity). We must rearrange it so it is either 0/0
                       or   . We use a little trick to get it   .

















        so




        Example 7—


                                               Trig identity. Now it's 0/0.








        Example 8—

                                              Trick—add the fractions, get 0/0.
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