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Question Number 30501 by abdo imad last updated on 22/Feb/18

let put w=e^(i((2π)/n)) find Σ_(k=1) ^n (x+w^k )^n 2) find Σ_(k=1) ^n n(x+w^k )^(n−1) .

letputw=ei2πnfind∑k=1n(x+wk)n2)find∑k=1nn(x+wk)n−1.

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