GATE Electrical Engineering (EE) 2012 Solved Paper

Question : 13 of 65

Marks: +1, -0

Given

f(z) = \;{1}/{z\;+\;1}−\;{2}/{z\;+\;3}

. If C is a counterclockwise path in the z-plane such that |z + 1| = 1, the value of

\;{1}/{2π\;i}∫ _{c}f(z)dz

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