- #1
csnsc14320
- 57
- 1
Homework Statement
Say whether the indicated point is regular, an essential singularity, or a pole, and if a pole of what order it is.
[tex]\frac{z^2-1}{(z-1)^2}, z = 1[/tex]
Homework Equations
The Attempt at a Solution
Right now I'm just sort of stuck on how to put this into a laurent series - I can't seem to expand the denominator in a series about 1 because I keep getting infinity :(
any hints or suggestions?
Last edited: