Solution 18 (b).

Solutions.   

Sequence (i).   For the sequence  [Graphics:../Images/LaurentSeriesModHome_gr_724.gif]  we have  

                    [Graphics:../Images/LaurentSeriesModHome_gr_725.gif]  

Therefore,   [Graphics:../Images/LaurentSeriesModHome_gr_726.gif]   is valid for  [Graphics:../Images/LaurentSeriesModHome_gr_727.gif].

Sequence (ii).   For the sequence  [Graphics:../Images/LaurentSeriesModHome_gr_728.gif]  we have  

                    [Graphics:../Images/LaurentSeriesModHome_gr_729.gif]  

Therefore,   [Graphics:../Images/LaurentSeriesModHome_gr_730.gif]   is valid for  [Graphics:../Images/LaurentSeriesModHome_gr_731.gif].

Sequence (iii).   For the sequence  [Graphics:../Images/LaurentSeriesModHome_gr_732.gif]  we have  

                    [Graphics:../Images/LaurentSeriesModHome_gr_733.gif]  

Therefore,   [Graphics:../Images/LaurentSeriesModHome_gr_734.gif]   is valid for  [Graphics:../Images/LaurentSeriesModHome_gr_735.gif].

Sequence (iv).   For the sequence  [Graphics:../Images/LaurentSeriesModHome_gr_736.gif]  we have  

                    [Graphics:../Images/LaurentSeriesModHome_gr_737.gif]  

Therefore,   [Graphics:../Images/LaurentSeriesModHome_gr_738.gif]   is valid for  [Graphics:../Images/LaurentSeriesModHome_gr_739.gif].

We are done.   

Aside.  We can let Mathematica double check our work.

[Graphics:../Images/LaurentSeriesModHome_gr_740.gif]

[Graphics:../Images/LaurentSeriesModHome_gr_741.gif]


[Graphics:../Images/LaurentSeriesModHome_gr_742.gif]

[Graphics:../Images/LaurentSeriesModHome_gr_743.gif]


[Graphics:../Images/LaurentSeriesModHome_gr_744.gif]

[Graphics:../Images/LaurentSeriesModHome_gr_745.gif]


[Graphics:../Images/LaurentSeriesModHome_gr_746.gif]

[Graphics:../Images/LaurentSeriesModHome_gr_747.gif]


[Graphics:../Images/LaurentSeriesModHome_gr_748.gif]

[Graphics:../Images/LaurentSeriesModHome_gr_749.gif]


[Graphics:../Images/LaurentSeriesModHome_gr_750.gif]

[Graphics:../Images/LaurentSeriesModHome_gr_751.gif]


[Graphics:../Images/LaurentSeriesModHome_gr_752.gif]

[Graphics:../Images/LaurentSeriesModHome_gr_753.gif]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 



This solution is complements of the authors.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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