By Cauchy’s Goursat theorem f(z) be analytic in a simply connected domain D and C be any closed conture then.

A. ⌠f(z)dz = 0
B. ⌠f(z)dz ≥ 0
C. ⌠f(z)dz ≤ 0
D. ⌠f(z)dz ≠ 0
View Answer

A. ⌠f(z)dz = 0

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