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let-U-n-z-C-z-n-1-simlify-A-n-U-n-x-n-and-B-n-U-n-x-n-

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Question Number 30745 by abdo imad last updated on 25/Feb/18
let U_n ={z∈C/z^n =1} simlify A_n = Σ_(α∈U_n ) (x+α)^n and B_n =Σ_(α∈ U_n ) (x−α)^n .
letUn={z∈C/zn=1}simlifyAn=∑α∈Un(x+α)nandBn=∑α∈Un(x−α)n.

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