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let-give-l-i-x-2-x-dt-ln-t-find-a-serie-equal-to-l-i-x-x-2-




Question Number 30478 by abdo imad last updated on 22/Feb/18
let give  l_i (x)= ∫_2 ^x    (dt/(ln(t))) find a serie equal to l_i (x).  x≥2.
$${let}\:{give}\:\:{l}_{{i}} \left({x}\right)=\:\int_{\mathrm{2}} ^{{x}} \:\:\:\frac{{dt}}{{ln}\left({t}\right)}\:{find}\:{a}\:{serie}\:{equal}\:{to}\:{l}_{{i}} \left({x}\right). \\ $$$${x}\geqslant\mathrm{2}. \\ $$

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