Optimal. Leaf size=183 \[ -\frac{8}{105} a^7 \text{PolyLog}\left (2,\frac{2}{a x+1}-1\right )+\frac{17 a^4}{630 x^3}-\frac{a^2}{105 x^5}-\frac{8 a^5 \tanh ^{-1}(a x)}{105 x^2}-\frac{a^4 \tanh ^{-1}(a x)^2}{3 x^3}+\frac{9 a^3 \tanh ^{-1}(a x)}{70 x^4}+\frac{2 a^2 \tanh ^{-1}(a x)^2}{5 x^5}+\frac{a^6}{210 x}+\frac{8}{105} a^7 \tanh ^{-1}(a x)^2-\frac{1}{210} a^7 \tanh ^{-1}(a x)+\frac{16}{105} a^7 \log \left (2-\frac{2}{a x+1}\right ) \tanh ^{-1}(a x)-\frac{a \tanh ^{-1}(a x)}{21 x^6}-\frac{\tanh ^{-1}(a x)^2}{7 x^7} \]
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Rubi [A] time = 0.81617, antiderivative size = 183, normalized size of antiderivative = 1., number of steps used = 42, number of rules used = 8, integrand size = 22, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.364, Rules used = {6012, 5916, 5982, 325, 206, 5988, 5932, 2447} \[ -\frac{8}{105} a^7 \text{PolyLog}\left (2,\frac{2}{a x+1}-1\right )+\frac{17 a^4}{630 x^3}-\frac{a^2}{105 x^5}-\frac{8 a^5 \tanh ^{-1}(a x)}{105 x^2}-\frac{a^4 \tanh ^{-1}(a x)^2}{3 x^3}+\frac{9 a^3 \tanh ^{-1}(a x)}{70 x^4}+\frac{2 a^2 \tanh ^{-1}(a x)^2}{5 x^5}+\frac{a^6}{210 x}+\frac{8}{105} a^7 \tanh ^{-1}(a x)^2-\frac{1}{210} a^7 \tanh ^{-1}(a x)+\frac{16}{105} a^7 \log \left (2-\frac{2}{a x+1}\right ) \tanh ^{-1}(a x)-\frac{a \tanh ^{-1}(a x)}{21 x^6}-\frac{\tanh ^{-1}(a x)^2}{7 x^7} \]
Antiderivative was successfully verified.
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Rule 6012
Rule 5916
Rule 5982
Rule 325
Rule 206
Rule 5988
Rule 5932
Rule 2447
Rubi steps
\begin{align*} \int \frac{\left (1-a^2 x^2\right )^2 \tanh ^{-1}(a x)^2}{x^8} \, dx &=\int \left (\frac{\tanh ^{-1}(a x)^2}{x^8}-\frac{2 a^2 \tanh ^{-1}(a x)^2}{x^6}+\frac{a^4 \tanh ^{-1}(a x)^2}{x^4}\right ) \, dx\\ &=-\left (\left (2 a^2\right ) \int \frac{\tanh ^{-1}(a x)^2}{x^6} \, dx\right )+a^4 \int \frac{\tanh ^{-1}(a x)^2}{x^4} \, dx+\int \frac{\tanh ^{-1}(a x)^2}{x^8} \, dx\\ &=-\frac{\tanh ^{-1}(a x)^2}{7 x^7}+\frac{2 a^2 \tanh ^{-1}(a x)^2}{5 x^5}-\frac{a^4 \tanh ^{-1}(a x)^2}{3 x^3}+\frac{1}{7} (2 a) \int \frac{\tanh ^{-1}(a x)}{x^7 \left (1-a^2 x^2\right )} \, dx-\frac{1}{5} \left (4 a^3\right ) \int \frac{\tanh ^{-1}(a x)}{x^5 \left (1-a^2 x^2\right )} \, dx+\frac{1}{3} \left (2 a^5\right ) \int \frac{\tanh ^{-1}(a x)}{x^3 \left (1-a^2 x^2\right )} \, dx\\ &=-\frac{\tanh ^{-1}(a x)^2}{7 x^7}+\frac{2 a^2 \tanh ^{-1}(a x)^2}{5 x^5}-\frac{a^4 \tanh ^{-1}(a x)^2}{3 x^3}+\frac{1}{7} (2 a) \int \frac{\tanh ^{-1}(a x)}{x^7} \, dx+\frac{1}{7} \left (2 a^3\right ) \int \frac{\tanh ^{-1}(a x)}{x^5 \left (1-a^2 x^2\right )} \, dx-\frac{1}{5} \left (4 a^3\right ) \int \frac{\tanh ^{-1}(a x)}{x^5} \, dx+\frac{1}{3} \left (2 a^5\right ) \int \frac{\tanh ^{-1}(a x)}{x^3} \, dx-\frac{1}{5} \left (4 a^5\right ) \int \frac{\tanh ^{-1}(a x)}{x^3 \left (1-a^2 x^2\right )} \, dx+\frac{1}{3} \left (2 a^7\right ) \int \frac{\tanh ^{-1}(a x)}{x \left (1-a^2 x^2\right )} \, dx\\ &=-\frac{a \tanh ^{-1}(a x)}{21 x^6}+\frac{a^3 \tanh ^{-1}(a x)}{5 x^4}-\frac{a^5 \tanh ^{-1}(a x)}{3 x^2}+\frac{1}{3} a^7 \tanh ^{-1}(a x)^2-\frac{\tanh ^{-1}(a x)^2}{7 x^7}+\frac{2 a^2 \tanh ^{-1}(a x)^2}{5 x^5}-\frac{a^4 \tanh ^{-1}(a x)^2}{3 x^3}+\frac{1}{21} a^2 \int \frac{1}{x^6 \left (1-a^2 x^2\right )} \, dx+\frac{1}{7} \left (2 a^3\right ) \int \frac{\tanh ^{-1}(a x)}{x^5} \, dx-\frac{1}{5} a^4 \int \frac{1}{x^4 \left (1-a^2 x^2\right )} \, dx+\frac{1}{7} \left (2 a^5\right ) \int \frac{\tanh ^{-1}(a x)}{x^3 \left (1-a^2 x^2\right )} \, dx-\frac{1}{5} \left (4 a^5\right ) \int \frac{\tanh ^{-1}(a x)}{x^3} \, dx+\frac{1}{3} a^6 \int \frac{1}{x^2 \left (1-a^2 x^2\right )} \, dx+\frac{1}{3} \left (2 a^7\right ) \int \frac{\tanh ^{-1}(a x)}{x (1+a x)} \, dx-\frac{1}{5} \left (4 a^7\right ) \int \frac{\tanh ^{-1}(a x)}{x \left (1-a^2 x^2\right )} \, dx\\ &=-\frac{a^2}{105 x^5}+\frac{a^4}{15 x^3}-\frac{a^6}{3 x}-\frac{a \tanh ^{-1}(a x)}{21 x^6}+\frac{9 a^3 \tanh ^{-1}(a x)}{70 x^4}+\frac{a^5 \tanh ^{-1}(a x)}{15 x^2}-\frac{1}{15} a^7 \tanh ^{-1}(a x)^2-\frac{\tanh ^{-1}(a x)^2}{7 x^7}+\frac{2 a^2 \tanh ^{-1}(a x)^2}{5 x^5}-\frac{a^4 \tanh ^{-1}(a x)^2}{3 x^3}+\frac{2}{3} a^7 \tanh ^{-1}(a x) \log \left (2-\frac{2}{1+a x}\right )+\frac{1}{21} a^4 \int \frac{1}{x^4 \left (1-a^2 x^2\right )} \, dx+\frac{1}{14} a^4 \int \frac{1}{x^4 \left (1-a^2 x^2\right )} \, dx+\frac{1}{7} \left (2 a^5\right ) \int \frac{\tanh ^{-1}(a x)}{x^3} \, dx-\frac{1}{5} a^6 \int \frac{1}{x^2 \left (1-a^2 x^2\right )} \, dx-\frac{1}{5} \left (2 a^6\right ) \int \frac{1}{x^2 \left (1-a^2 x^2\right )} \, dx+\frac{1}{7} \left (2 a^7\right ) \int \frac{\tanh ^{-1}(a x)}{x \left (1-a^2 x^2\right )} \, dx-\frac{1}{5} \left (4 a^7\right ) \int \frac{\tanh ^{-1}(a x)}{x (1+a x)} \, dx+\frac{1}{3} a^8 \int \frac{1}{1-a^2 x^2} \, dx-\frac{1}{3} \left (2 a^8\right ) \int \frac{\log \left (2-\frac{2}{1+a x}\right )}{1-a^2 x^2} \, dx\\ &=-\frac{a^2}{105 x^5}+\frac{17 a^4}{630 x^3}+\frac{4 a^6}{15 x}+\frac{1}{3} a^7 \tanh ^{-1}(a x)-\frac{a \tanh ^{-1}(a x)}{21 x^6}+\frac{9 a^3 \tanh ^{-1}(a x)}{70 x^4}-\frac{8 a^5 \tanh ^{-1}(a x)}{105 x^2}+\frac{8}{105} a^7 \tanh ^{-1}(a x)^2-\frac{\tanh ^{-1}(a x)^2}{7 x^7}+\frac{2 a^2 \tanh ^{-1}(a x)^2}{5 x^5}-\frac{a^4 \tanh ^{-1}(a x)^2}{3 x^3}-\frac{2}{15} a^7 \tanh ^{-1}(a x) \log \left (2-\frac{2}{1+a x}\right )-\frac{1}{3} a^7 \text{Li}_2\left (-1+\frac{2}{1+a x}\right )+\frac{1}{21} a^6 \int \frac{1}{x^2 \left (1-a^2 x^2\right )} \, dx+\frac{1}{14} a^6 \int \frac{1}{x^2 \left (1-a^2 x^2\right )} \, dx+\frac{1}{7} a^6 \int \frac{1}{x^2 \left (1-a^2 x^2\right )} \, dx+\frac{1}{7} \left (2 a^7\right ) \int \frac{\tanh ^{-1}(a x)}{x (1+a x)} \, dx-\frac{1}{5} a^8 \int \frac{1}{1-a^2 x^2} \, dx-\frac{1}{5} \left (2 a^8\right ) \int \frac{1}{1-a^2 x^2} \, dx+\frac{1}{5} \left (4 a^8\right ) \int \frac{\log \left (2-\frac{2}{1+a x}\right )}{1-a^2 x^2} \, dx\\ &=-\frac{a^2}{105 x^5}+\frac{17 a^4}{630 x^3}+\frac{a^6}{210 x}-\frac{4}{15} a^7 \tanh ^{-1}(a x)-\frac{a \tanh ^{-1}(a x)}{21 x^6}+\frac{9 a^3 \tanh ^{-1}(a x)}{70 x^4}-\frac{8 a^5 \tanh ^{-1}(a x)}{105 x^2}+\frac{8}{105} a^7 \tanh ^{-1}(a x)^2-\frac{\tanh ^{-1}(a x)^2}{7 x^7}+\frac{2 a^2 \tanh ^{-1}(a x)^2}{5 x^5}-\frac{a^4 \tanh ^{-1}(a x)^2}{3 x^3}+\frac{16}{105} a^7 \tanh ^{-1}(a x) \log \left (2-\frac{2}{1+a x}\right )+\frac{1}{15} a^7 \text{Li}_2\left (-1+\frac{2}{1+a x}\right )+\frac{1}{21} a^8 \int \frac{1}{1-a^2 x^2} \, dx+\frac{1}{14} a^8 \int \frac{1}{1-a^2 x^2} \, dx+\frac{1}{7} a^8 \int \frac{1}{1-a^2 x^2} \, dx-\frac{1}{7} \left (2 a^8\right ) \int \frac{\log \left (2-\frac{2}{1+a x}\right )}{1-a^2 x^2} \, dx\\ &=-\frac{a^2}{105 x^5}+\frac{17 a^4}{630 x^3}+\frac{a^6}{210 x}-\frac{1}{210} a^7 \tanh ^{-1}(a x)-\frac{a \tanh ^{-1}(a x)}{21 x^6}+\frac{9 a^3 \tanh ^{-1}(a x)}{70 x^4}-\frac{8 a^5 \tanh ^{-1}(a x)}{105 x^2}+\frac{8}{105} a^7 \tanh ^{-1}(a x)^2-\frac{\tanh ^{-1}(a x)^2}{7 x^7}+\frac{2 a^2 \tanh ^{-1}(a x)^2}{5 x^5}-\frac{a^4 \tanh ^{-1}(a x)^2}{3 x^3}+\frac{16}{105} a^7 \tanh ^{-1}(a x) \log \left (2-\frac{2}{1+a x}\right )-\frac{8}{105} a^7 \text{Li}_2\left (-1+\frac{2}{1+a x}\right )\\ \end{align*}
Mathematica [A] time = 1.38135, size = 140, normalized size = 0.77 \[ \frac{-48 a^7 x^7 \text{PolyLog}\left (2,e^{-2 \tanh ^{-1}(a x)}\right )+a^2 x^2 \left (3 a^4 x^4+17 a^2 x^2-6\right )+6 \left (8 a^7 x^7-35 a^4 x^4+42 a^2 x^2-15\right ) \tanh ^{-1}(a x)^2+3 a x \tanh ^{-1}(a x) \left (-a^6 x^6-16 a^4 x^4+27 a^2 x^2+32 a^6 x^6 \log \left (1-e^{-2 \tanh ^{-1}(a x)}\right )-10\right )}{630 x^7} \]
Warning: Unable to verify antiderivative.
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Maple [A] time = 0.064, size = 292, normalized size = 1.6 \begin{align*} -{\frac{ \left ({\it Artanh} \left ( ax \right ) \right ) ^{2}}{7\,{x}^{7}}}+{\frac{2\,{a}^{2} \left ({\it Artanh} \left ( ax \right ) \right ) ^{2}}{5\,{x}^{5}}}-{\frac{{a}^{4} \left ({\it Artanh} \left ( ax \right ) \right ) ^{2}}{3\,{x}^{3}}}-{\frac{8\,{a}^{7}{\it Artanh} \left ( ax \right ) \ln \left ( ax-1 \right ) }{105}}-{\frac{a{\it Artanh} \left ( ax \right ) }{21\,{x}^{6}}}+{\frac{9\,{a}^{3}{\it Artanh} \left ( ax \right ) }{70\,{x}^{4}}}-{\frac{8\,{a}^{5}{\it Artanh} \left ( ax \right ) }{105\,{x}^{2}}}+{\frac{16\,{a}^{7}{\it Artanh} \left ( ax \right ) \ln \left ( ax \right ) }{105}}-{\frac{8\,{a}^{7}{\it Artanh} \left ( ax \right ) \ln \left ( ax+1 \right ) }{105}}-{\frac{8\,{a}^{7}{\it dilog} \left ( ax \right ) }{105}}-{\frac{8\,{a}^{7}{\it dilog} \left ( ax+1 \right ) }{105}}-{\frac{8\,{a}^{7}\ln \left ( ax \right ) \ln \left ( ax+1 \right ) }{105}}-{\frac{2\,{a}^{7} \left ( \ln \left ( ax-1 \right ) \right ) ^{2}}{105}}+{\frac{8\,{a}^{7}}{105}{\it dilog} \left ({\frac{1}{2}}+{\frac{ax}{2}} \right ) }+{\frac{4\,{a}^{7}\ln \left ( ax-1 \right ) }{105}\ln \left ({\frac{1}{2}}+{\frac{ax}{2}} \right ) }+{\frac{2\,{a}^{7} \left ( \ln \left ( ax+1 \right ) \right ) ^{2}}{105}}+{\frac{4\,{a}^{7}}{105}\ln \left ( -{\frac{ax}{2}}+{\frac{1}{2}} \right ) \ln \left ({\frac{1}{2}}+{\frac{ax}{2}} \right ) }-{\frac{4\,{a}^{7}\ln \left ( ax+1 \right ) }{105}\ln \left ( -{\frac{ax}{2}}+{\frac{1}{2}} \right ) }+{\frac{{a}^{7}\ln \left ( ax-1 \right ) }{420}}+{\frac{{a}^{6}}{210\,x}}-{\frac{{a}^{2}}{105\,{x}^{5}}}+{\frac{17\,{a}^{4}}{630\,{x}^{3}}}-{\frac{{a}^{7}\ln \left ( ax+1 \right ) }{420}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 0.994082, size = 343, normalized size = 1.87 \begin{align*} \frac{1}{1260} \,{\left (96 \,{\left (\log \left (a x - 1\right ) \log \left (\frac{1}{2} \, a x + \frac{1}{2}\right ) +{\rm Li}_2\left (-\frac{1}{2} \, a x + \frac{1}{2}\right )\right )} a^{5} - 96 \,{\left (\log \left (a x + 1\right ) \log \left (x\right ) +{\rm Li}_2\left (-a x\right )\right )} a^{5} + 96 \,{\left (\log \left (-a x + 1\right ) \log \left (x\right ) +{\rm Li}_2\left (a x\right )\right )} a^{5} - 3 \, a^{5} \log \left (a x + 1\right ) + 3 \, a^{5} \log \left (a x - 1\right ) + \frac{2 \,{\left (12 \, a^{5} x^{5} \log \left (a x + 1\right )^{2} - 24 \, a^{5} x^{5} \log \left (a x + 1\right ) \log \left (a x - 1\right ) - 12 \, a^{5} x^{5} \log \left (a x - 1\right )^{2} + 3 \, a^{4} x^{4} + 17 \, a^{2} x^{2} - 6\right )}}{x^{5}}\right )} a^{2} - \frac{1}{210} \,{\left (16 \, a^{6} \log \left (a^{2} x^{2} - 1\right ) - 16 \, a^{6} \log \left (x^{2}\right ) + \frac{16 \, a^{4} x^{4} - 27 \, a^{2} x^{2} + 10}{x^{6}}\right )} a \operatorname{artanh}\left (a x\right ) - \frac{{\left (35 \, a^{4} x^{4} - 42 \, a^{2} x^{2} + 15\right )} \operatorname{artanh}\left (a x\right )^{2}}{105 \, x^{7}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F] time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left (\frac{{\left (a^{4} x^{4} - 2 \, a^{2} x^{2} + 1\right )} \operatorname{artanh}\left (a x\right )^{2}}{x^{8}}, x\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{\left (a x - 1\right )^{2} \left (a x + 1\right )^{2} \operatorname{atanh}^{2}{\left (a x \right )}}{x^{8}}\, dx \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{{\left (a^{2} x^{2} - 1\right )}^{2} \operatorname{artanh}\left (a x\right )^{2}}{x^{8}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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