Solution 17 (ii).

See text and/or instructor's solution manual.

To prove part (ii) consider the analytic function  .  

Then use the construction in (i) applied to   .  

                   ,
                   
                   ,
                   
                   ,
                   
                   .  

This solution is complements of the authors.

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