# Laurent Expansion around z=0

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• May 5th 2012, 11:51 AM
JohnDoe
Laurent Expansion around z=0
Greetings,

I need to calculate the Laurent expansion of the function $\frac{1}{sin(z)z^2}$ around z=0. My main purpose is to calculate the residue of the function at z=0. How can I do so ?

Thanks