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simplify-n-1-n-n-2-1-4-3-




Question Number 161075 by mnjuly1970 last updated on 11/Dec/21
      simplify             Σ_(n=1) ^∞ (( n)/(( n^( 2) −(( 1)/4) )^( 3) )) = ?
$$ \\ $$$$\:\:\:\:{simplify} \\ $$$$ \\ $$$$\:\:\:\:\:\:\:\:\:\underset{{n}=\mathrm{1}} {\overset{\infty} {\sum}}\frac{\:{n}}{\left(\:{n}^{\:\mathrm{2}} −\frac{\:\mathrm{1}}{\mathrm{4}}\:\right)^{\:\mathrm{3}} }\:=\:? \\ $$$$ \\ $$

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