I'm trying to do a question about finding the principal part of a complex valued function:(adsbygoogle = window.adsbygoogle || []).push({});

[tex] f(z)= \frac{1}{(1+z^3)^2} [/tex].

I really don't know how to go about even starting it, any tips?

(just in case my terminology is different to anyone elses, the principal part is the terms of the Laurent expansion that have negative powers)

Thanks.

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# Principal Part of Complex Function

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