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#1 2009-05-25 14:20:52

Chrysostomou
Member
Registered: 2009-05-25
Posts: 9

Complex Analysis last tutorial!

1)For the function f(z)=(z^2-2z)/((z+1)^2(z^2+4), find the residule at z=-2i. Hence find the integral of this function around a closed circular contour centred at the point zo=-2i,with radius1.

2)Identify all the singularities of the following function  and fin the correspnding residues:
(i)f(z)=(z^2+1)/z^3
(ii) f(z)=(z-1)e^(i/z)

Many thanks:)

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