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nice-calculus-evaluate-n-1-H-n-n-2-n-




Question Number 133048 by mnjuly1970 last updated on 18/Feb/21
       nice .....calculus...     evaluate ::Σ_(n=1) ^∞ ((H_n /(n^2 +n)))=?
$$\:\:\:\:\:\:\:{nice}\:…..{calculus}… \\ $$$$\:\:\:{evaluate}\:::\underset{{n}=\mathrm{1}} {\overset{\infty} {\sum}}\left(\frac{\mathrm{H}_{{n}} }{{n}^{\mathrm{2}} +{n}}\right)=? \\ $$$$ \\ $$

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