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calculate-1-n-1-H-n-n-2-2-0-1-ln-2-x-Li-2-x-x-dx-




Question Number 167433 by mnjuly1970 last updated on 16/Mar/22
         calculate       1 :  Ω= Σ_(n=1) ^∞ ((( H_( n) )/n) )^( 2) = ?      2 : ∫_0 ^( 1)  ((ln^( 2) (x).Li_( 2) (x))/x) dx = ?
$$ \\ $$$$\:\:\:\:\:\:\:{calculate}\: \\ $$$$\:\:\:\:\mathrm{1}\::\:\:\Omega=\:\underset{{n}=\mathrm{1}} {\overset{\infty} {\sum}}\left(\frac{\:{H}_{\:{n}} }{{n}}\:\right)^{\:\mathrm{2}} =\:? \\ $$$$\:\:\:\:\mathrm{2}\::\:\int_{\mathrm{0}} ^{\:\mathrm{1}} \:\frac{{ln}^{\:\mathrm{2}} \left({x}\right).\mathrm{L}{i}_{\:\mathrm{2}} \left({x}\right)}{{x}}\:{dx}\:=\:? \\ $$$$ \\ $$

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