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Homework Help: Another contour integration problem

  1. Oct 1, 2011 #1
    1. The problem statement, all variables and given/known data

    See the attached PDF for problem and attempted solution.

    2. Relevant equations

    3. The attempt at a solution

    According to Mathematica, the answer should be pi, but I keep getting pi/2, and I'm not sure where I'm making a mistake. Hints would be greatly appreciated. Thanks!

    Attached Files:

  2. jcsd
  3. Oct 1, 2011 #2


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    The residue at z=1 should be positive. You need to multiply by (z-1) not (1-z).
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