Optimal. Leaf size=78 \[ -\frac{\text{PolyLog}(2,a x)}{4 x^4}-\frac{a^2}{32 x^2}-\frac{a^3}{16 x}+\frac{1}{16} a^4 \log (x)-\frac{1}{16} a^4 \log (1-a x)-\frac{a}{48 x^3}+\frac{\log (1-a x)}{16 x^4} \]
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Rubi [A] time = 0.0392817, antiderivative size = 78, normalized size of antiderivative = 1., number of steps used = 4, number of rules used = 3, integrand size = 9, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.333, Rules used = {6591, 2395, 44} \[ -\frac{\text{PolyLog}(2,a x)}{4 x^4}-\frac{a^2}{32 x^2}-\frac{a^3}{16 x}+\frac{1}{16} a^4 \log (x)-\frac{1}{16} a^4 \log (1-a x)-\frac{a}{48 x^3}+\frac{\log (1-a x)}{16 x^4} \]
Antiderivative was successfully verified.
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Rule 6591
Rule 2395
Rule 44
Rubi steps
\begin{align*} \int \frac{\text{Li}_2(a x)}{x^5} \, dx &=-\frac{\text{Li}_2(a x)}{4 x^4}-\frac{1}{4} \int \frac{\log (1-a x)}{x^5} \, dx\\ &=\frac{\log (1-a x)}{16 x^4}-\frac{\text{Li}_2(a x)}{4 x^4}+\frac{1}{16} a \int \frac{1}{x^4 (1-a x)} \, dx\\ &=\frac{\log (1-a x)}{16 x^4}-\frac{\text{Li}_2(a x)}{4 x^4}+\frac{1}{16} a \int \left (\frac{1}{x^4}+\frac{a}{x^3}+\frac{a^2}{x^2}+\frac{a^3}{x}-\frac{a^4}{-1+a x}\right ) \, dx\\ &=-\frac{a}{48 x^3}-\frac{a^2}{32 x^2}-\frac{a^3}{16 x}+\frac{1}{16} a^4 \log (x)-\frac{1}{16} a^4 \log (1-a x)+\frac{\log (1-a x)}{16 x^4}-\frac{\text{Li}_2(a x)}{4 x^4}\\ \end{align*}
Mathematica [A] time = 0.034528, size = 60, normalized size = 0.77 \[ -\frac{24 \text{PolyLog}(2,a x)+a x \left (6 a^2 x^2+3 a x+2\right )-6 a^4 x^4 \log (x)+6 \left (a^4 x^4-1\right ) \log (1-a x)}{96 x^4} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.128, size = 68, normalized size = 0.9 \begin{align*} -{\frac{{\it polylog} \left ( 2,ax \right ) }{4\,{x}^{4}}}-{\frac{{a}^{3}}{16\,x}}-{\frac{a}{48\,{x}^{3}}}-{\frac{{a}^{2}}{32\,{x}^{2}}}+{\frac{{a}^{4}\ln \left ( -ax \right ) }{16}}-{\frac{{a}^{4}\ln \left ( -ax+1 \right ) }{16}}+{\frac{\ln \left ( -ax+1 \right ) }{16\,{x}^{4}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 0.986238, size = 78, normalized size = 1. \begin{align*} \frac{1}{16} \, a^{4} \log \left (x\right ) - \frac{6 \, a^{3} x^{3} + 3 \, a^{2} x^{2} + 2 \, a x + 6 \,{\left (a^{4} x^{4} - 1\right )} \log \left (-a x + 1\right ) + 24 \,{\rm Li}_2\left (a x\right )}{96 \, x^{4}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 2.78575, size = 163, normalized size = 2.09 \begin{align*} -\frac{6 \, a^{4} x^{4} \log \left (a x - 1\right ) - 6 \, a^{4} x^{4} \log \left (x\right ) + 6 \, a^{3} x^{3} + 3 \, a^{2} x^{2} + 2 \, a x + 24 \,{\rm Li}_2\left (a x\right ) - 6 \, \log \left (-a x + 1\right )}{96 \, x^{4}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 11.2801, size = 60, normalized size = 0.77 \begin{align*} \frac{a^{4} \log{\left (x \right )}}{16} + \frac{a^{4} \operatorname{Li}_{1}\left (a x\right )}{16} - \frac{a^{3}}{16 x} - \frac{a^{2}}{32 x^{2}} - \frac{a}{48 x^{3}} - \frac{\operatorname{Li}_{1}\left (a x\right )}{16 x^{4}} - \frac{\operatorname{Li}_{2}\left (a x\right )}{4 x^{4}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{{\rm Li}_2\left (a x\right )}{x^{5}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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