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Math Help - complex analysis question

  1. #1
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    complex analysis question

    I'm trying to solve this question for some time, and would like a poiner
    let f be analytic in {z:|z|>1}. f(z) is a real number for every z in (1,infinity).
    prove that f(z) is a real number for every z in (-infinity,-1).
    the relevernt material is mainly taylor's theorem.

    Solved - I thank everyone who looked.
    Last edited by Liav Teichner; December 2nd 2007 at 06:24 PM. Reason: solved
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