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developp-f-x-xln-1-e-x-at-inter-srie-2-find-0-1-f-x-dx-




Question Number 33294 by abdo imad last updated on 14/Apr/18
developp f(x)= xln( 1+e^(−x) )  at inter srie  2) find  ∫_0 ^1  f(x)dx .
$${developp}\:{f}\left({x}\right)=\:{xln}\left(\:\mathrm{1}+{e}^{−{x}} \right)\:\:{at}\:{inter}\:{srie} \\ $$$$\left.\mathrm{2}\right)\:{find}\:\:\int_{\mathrm{0}} ^{\mathrm{1}} \:{f}\left({x}\right){dx}\:. \\ $$

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