find the laurent series centered at $z=0$ for the rational functions below. Determine the largest open set in $C$ for which each series converges
$$\frac{1}{(z^2-1)(z^2-4)}.$$
I have no idea how to do this.
find the laurent series centered at $z=0$ for the rational functions below. Determine the largest open set in $C$ for which each series converges
$$\frac{1}{(z^2-1)(z^2-4)}.$$
I have no idea how to do this.