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Question Number 141612 by Raxreedoroid last updated on 21/May/21

Σ_(k=1) ^(n−1) (((−1)^(k+1) C_(k−1) ^( n−2) )/((k+1)^x ))=?

$$\underset{{k}=\mathrm{1}} {\overset{{n}−\mathrm{1}} {\sum}}\frac{\left(−\mathrm{1}\right)^{{k}+\mathrm{1}} {C}_{{k}−\mathrm{1}} ^{\:{n}−\mathrm{2}} }{\left({k}+\mathrm{1}\right)^{{x}} }=? \\ $$

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