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Homework Help: Simplifying complex numbers

  1. Oct 1, 2008 #1
    Our professor asks us to evaluate the following. So, i am assuming that he asks us to simplify the equation. Ive included my computation. I am quite stuck. I don't know if im simplifying or just complicating the problem..please help!me!

    Ive used Euler formula..and then im stuck..

    here's what i did
    http://img100.imageshack.us/img100/3440/cci1001200800000co6.th.jpg [Broken]http://g.imageshack.us/thpix.php [Broken]
    Last edited by a moderator: May 3, 2017
  2. jcsd
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