Let $\displaystyle f(z) =\frac{z}{(1-z)\sin z}$. Find the Laurent series of $\displaystyle f(z)$ such that the series is valid in the annulus $\displaystyle \pi<|z|<2\pi$

How do I start? Thanks in advance!

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- Nov 13th 2012, 07:46 AMalphabeta89Help in finding the Laurent Series in a given annulus
Let $\displaystyle f(z) =\frac{z}{(1-z)\sin z}$. Find the Laurent series of $\displaystyle f(z)$ such that the series is valid in the annulus $\displaystyle \pi<|z|<2\pi$

How do I start? Thanks in advance! - Nov 13th 2012, 01:46 PMhediRe: Help in finding the Laurent Series in a given annulus
A suggestion is attached.