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Question Number 223534 by Tawa11 last updated on 28/Jul/25

∫_( 0) ^( 1)  ((ln(x))/x) ln^3 (((1  −  x)/(1  +  x))) dx

$$\int_{\:\mathrm{0}} ^{\:\mathrm{1}} \:\frac{\mathrm{ln}\left(\mathrm{x}\right)}{\mathrm{x}}\:\mathrm{ln}^{\mathrm{3}} \left(\frac{\mathrm{1}\:\:−\:\:\mathrm{x}}{\mathrm{1}\:\:+\:\:\mathrm{x}}\right)\:\mathrm{dx} \\ $$

Answered by MathematicalUser2357 last updated on 31/Jul/25

 lim_(x→1^− ) ∫−lim_(x→0^+ ) ∫  1.67344

$$ \underset{{x}\rightarrow\mathrm{1}^{−} } {\mathrm{lim}}\int−\underset{{x}\rightarrow\mathrm{0}^{+} } {\mathrm{lim}}\int\: \mathrm{1}.\mathrm{67344} \\ $$

Commented by Tawa11 last updated on 02/Aug/25

Answer is  =  ((93)/8)ζ(5)  −  ((7π^2 )/8)ζ(3)

$$\mathrm{Answer}\:\mathrm{is}\:\:=\:\:\frac{\mathrm{93}}{\mathrm{8}}\zeta\left(\mathrm{5}\right)\:\:−\:\:\frac{\mathrm{7}\pi^{\mathrm{2}} }{\mathrm{8}}\zeta\left(\mathrm{3}\right) \\ $$

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