Question: By computing a certain integral, prove that the following open sets are not simply connected. (a)={1,2,3}U=C{1,2,3}(b)={ in : 1

By computing a certain integral, prove that the following open sets are not simply connected. (a)={1,2,3}U=C{1,2,3}(b)={ in : 1<||<2}

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