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I have a question about calculating the residue of the following function at z=0 point. I am new to complex analysis so I would like to hear all the possible methods. I tried to expand the function I was dealing with in Laurent series and was unable to do so. How can I expand the following function in Laurent series about z=0 so that I can read of the residue at z=0?

[itex]\frac{1}{sin(z\pi)z^2}[/itex]

Many thanks

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# Calculating the residue of the following function

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