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!
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!