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S-n-1-n-1-n-S-




Question Number 9379 by FilupSmith last updated on 03/Dec/16
S=Σ_(n=1) ^∞ (−n)^(1−n)   S=??
$${S}=\underset{{n}=\mathrm{1}} {\overset{\infty} {\sum}}\left(−{n}\right)^{\mathrm{1}−{n}} \\ $$$${S}=?? \\ $$

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