which of the following functions has a simple zero at z = 1 and an essential singularity at z = -1 O a. (z + 1)ezi O b. (z–1)ez+i Oc. (2 — 1)е? O d. (z+1)ez-1

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Q: which of the following functions has a simple zero at z = 1 and an essential singularity at z = -1…

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