Exercise 6.  Express the following quantities in    form.  

6 (e).   .  

Solution 6 (e).

See text and/or instructor's solution manual.

Answer.   .  

Solution.  Use identity (5-38)      and get  

                        
                    
                        

We are done.   

                    The point    and it's image  .  

We are really done.   

Aside.  We can let Mathematica double check our work.

Alternate Solution.  Use identity (5-39)      and get  

                      

We are really really done.   

                    The point    and it's image  .  

Aside.  We can let Mathematica double check our work.

Remark.  

                      

This solution is complements of the authors.

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