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Math Help - Showing Analytic Using Derivative Equation

  1. #1
    Junior Member
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    Showing Analytic Using Derivative Equation

    Need help please:

    Suppose that F is analytic in a domain D. Define f by

    f(z) = F(z) - F(zo)/ (z - zo)

    if z ≠ zo and f(zo) = F'(zo), where zo is a point in D. Show that f is also analytic in domain D.
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  2. #2
    Super Member girdav's Avatar
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    You can use the power series of F.
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