December 2nd, 2009, 08:17 PM  #1 
Newbie Joined: Jan 2009 Posts: 21 Thanks: 0  residue
Find the residue of the following. (a) , where (b) , where We are just beginning residues right now, and I do not know how to proceed. Should I use the Laurent expansion to find the residue for both parts? I am not very familiar with residues yet. Thanks very much. 
December 3rd, 2009, 10:06 AM  #2 
Newbie Joined: Jan 2009 Posts: 21 Thanks: 0  Re: residue
I was wondering if you can check my work. For (a) , where we have So the residue is . For (b) , where we have I am stuck. I don't know how to get the residue. I know that is an essential singularity. I need help on part (b). 

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