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Math Help - Need help finding residues

  1. #1
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    Need help finding residues

    I'm trying to find the residues of

    f(z)=\frac{z+1}{z(z-2)} at 0 and 2.

    Can anyone give me a starting place to solve this?
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  2. #2
    MHF Contributor chisigma's Avatar
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    If z_{0} is a first order pole of f(z) then the residue in z_{0} is...

    \lim _{z \rightarrow z_{0}} f(z)\cdot (z-z_{0}) (1)

    Kind regards

    \chi \sigma
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