Exercise 7.  Use L'Hôpital's rule to find the following limits.

7 (a).  .  

Solution 7 (a).

See text and/or instructor's solution manual.

Answer.   .  

Solution.  

                      

We are done.   

Aside.  We can let Mathematica double check our work.

                    The mapping  ,  as  ,  the image point  ,

                    and we see that   limit   .  

This solution is complements of the authors.

(c) 2008 John H. Mathews, Russell W. Howell