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19-11-2016
Mathematics

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∑from 1to infinity of n^2* e^-2n

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nobillionaireNobley nobillionaireNobley

21-11-2016

∑ from 1 to infinity of n^2* e^(-2n) = (e^2 + e^4)/(e^2 - 1)^3 = 0.23768

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