I want to derive Laurent series of

$f(z)=\frac{1}{({z}^{2}+1)({z}^{2}-9)}$

for two sets: $1<|z|<3$ and $3<|z|$

$f(z)=\frac{1}{({z}^{2}+1)({z}^{2}-9)}$

for two sets: $1<|z|<3$ and $3<|z|$

Jonathan Kent
2022-05-23
Answered

I want to derive Laurent series of

$f(z)=\frac{1}{({z}^{2}+1)({z}^{2}-9)}$

for two sets: $1<|z|<3$ and $3<|z|$

$f(z)=\frac{1}{({z}^{2}+1)({z}^{2}-9)}$

for two sets: $1<|z|<3$ and $3<|z|$

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