Question Number 134505 by Ñï= last updated on 04/Mar/21
$${Prove}::\frac{{Li}_{\mathrm{3}} \left(\mathrm{1}\right)}{\mathrm{10}}=\int_{\mathrm{0}} ^{{ln}\frac{\sqrt{\mathrm{5}}+\mathrm{1}}{\mathrm{2}}} {x}^{\mathrm{2}} {coth}\left({x}\right){dx} \\ $$