Word Count : 128

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The integral is [ \oint_C \frac{dz}{z^2 + 1}, ] where (C) is (|z| = 4). Factor the denominator: [ z^2 + 1 = (z - i)(z + i). ] The singularities are _____ __________ _____ ______ ________ _________.
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__________ ____ __________ __________ ___.
________ ___ ______ _____ _________ __________ _____ __________ ________ ____ _________ _______.
__________ __________ __________ ________ _____ _________.
_______ _______ _______ _______ ____.
______ ______ __________ ___ ____ ___ ____ _______.
_________ ___ _______ _________ __________.
____ __________ __________ ________ _________ _________ _______ ________.
________ ________ _________ _______ ________ __________ _______ ______ ______ ______.
_________ ___ _______ __________ ________ ________ __________ ______ ____ _______ _______.
__________ __________ __________ ___ __________ ___.
___ _____.
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