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gbu
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Homework Statement
Find the Laurent series of
[itex]
\frac{(z+2)}{(z-1)}
[/itex]
on
[itex]C_1: 1 < |z|[/itex]
and
[itex]C_2: 0 < |z| < 1[/itex]
Homework Equations
I have a formula for computing Laurent series, but it includes an integral that is impossible to solve. For everything that I've read, no one actually solves them this way. I don't think there's any relevant equations that I know that can help.
The Attempt at a Solution
I've been stumped on this for four days now. I've been trying to self-work through a complex analysis textbook over the summer, and I'm really close to giving up as I completely can't wrap my head around the annulus type Laurent series stuff.
Any advice helps. I've read lots and Googled lots. I know Taylor series and such...