The integral &conint; f (z) dz evaluated around the unit circle on the – McqOptions

MCQOPTIONS

1.	The integral ∮ f (z) dz evaluated around the unit circle on the complex plane for f(z) = cosz/z is
A.	2 i
B.	4 i
C.	2 i
D.	0
Answer» B. 4 i

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