Find the residues of the function f(z) = cot z and its poles. Ans. Res[f(2)]z=0 = and Res[f(2)]z=nn = na)N E Z. -1 1 Ans. Res[f(z)]z=0 and Res[f(z)]z=nn

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Find the residues of the function f(z) =
cot z and its poles.
Ans. Res[f(2)]z=0 = 2 and Res[(f (2)]z=nn = Tne),n E Z.
%3D
Z=NT
(nT)4
Transcribed Image Text:Find the residues of the function f(z) = cot z and its poles. Ans. Res[f(2)]z=0 = 2 and Res[(f (2)]z=nn = Tne),n E Z. %3D Z=NT (nT)4
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