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Math Help - Help in finding the Laurent Series in a given annulus

  1. #1
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    Help in finding the Laurent Series in a given annulus

    Let f(z) =\frac{z}{(1-z)\sin z}. Find the Laurent series of f(z) such that the series is valid in the annulus \pi<|z|<2\pi

    How do I start? Thanks in advance!
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  2. #2
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    Re: Help in finding the Laurent Series in a given annulus

    A suggestion is attached.
    Attached Thumbnails Attached Thumbnails Help in finding the Laurent Series in a given annulus-001.jpg  
    Last edited by hedi; November 13th 2012 at 03:04 PM.
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