Optimal. Leaf size=219 \[ \frac{7 i c \text{PolyLog}\left (2,1-\frac{2}{1+i a x}\right )}{30 a^4}+\frac{1}{6} a^2 c x^6 \tan ^{-1}(a x)^3-\frac{c x^2 \tan ^{-1}(a x)}{60 a^2}+\frac{c x}{15 a^3}+\frac{c x \tan ^{-1}(a x)^2}{4 a^3}-\frac{c \tan ^{-1}(a x)^3}{12 a^4}+\frac{7 i c \tan ^{-1}(a x)^2}{30 a^4}-\frac{c \tan ^{-1}(a x)}{15 a^4}+\frac{7 c \log \left (\frac{2}{1+i a x}\right ) \tan ^{-1}(a x)}{15 a^4}-\frac{c x^3}{60 a}-\frac{1}{10} a c x^5 \tan ^{-1}(a x)^2+\frac{1}{4} c x^4 \tan ^{-1}(a x)^3+\frac{1}{20} c x^4 \tan ^{-1}(a x)-\frac{c x^3 \tan ^{-1}(a x)^2}{12 a} \]
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Rubi [A] time = 1.11374, antiderivative size = 219, normalized size of antiderivative = 1., number of steps used = 52, number of rules used = 12, integrand size = 20, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.6, Rules used = {4950, 4852, 4916, 321, 203, 4920, 4854, 2402, 2315, 4846, 4884, 302} \[ \frac{7 i c \text{PolyLog}\left (2,1-\frac{2}{1+i a x}\right )}{30 a^4}+\frac{1}{6} a^2 c x^6 \tan ^{-1}(a x)^3-\frac{c x^2 \tan ^{-1}(a x)}{60 a^2}+\frac{c x}{15 a^3}+\frac{c x \tan ^{-1}(a x)^2}{4 a^3}-\frac{c \tan ^{-1}(a x)^3}{12 a^4}+\frac{7 i c \tan ^{-1}(a x)^2}{30 a^4}-\frac{c \tan ^{-1}(a x)}{15 a^4}+\frac{7 c \log \left (\frac{2}{1+i a x}\right ) \tan ^{-1}(a x)}{15 a^4}-\frac{c x^3}{60 a}-\frac{1}{10} a c x^5 \tan ^{-1}(a x)^2+\frac{1}{4} c x^4 \tan ^{-1}(a x)^3+\frac{1}{20} c x^4 \tan ^{-1}(a x)-\frac{c x^3 \tan ^{-1}(a x)^2}{12 a} \]
Antiderivative was successfully verified.
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Rule 4950
Rule 4852
Rule 4916
Rule 321
Rule 203
Rule 4920
Rule 4854
Rule 2402
Rule 2315
Rule 4846
Rule 4884
Rule 302
Rubi steps
\begin{align*} \int x^3 \left (c+a^2 c x^2\right ) \tan ^{-1}(a x)^3 \, dx &=c \int x^3 \tan ^{-1}(a x)^3 \, dx+\left (a^2 c\right ) \int x^5 \tan ^{-1}(a x)^3 \, dx\\ &=\frac{1}{4} c x^4 \tan ^{-1}(a x)^3+\frac{1}{6} a^2 c x^6 \tan ^{-1}(a x)^3-\frac{1}{4} (3 a c) \int \frac{x^4 \tan ^{-1}(a x)^2}{1+a^2 x^2} \, dx-\frac{1}{2} \left (a^3 c\right ) \int \frac{x^6 \tan ^{-1}(a x)^2}{1+a^2 x^2} \, dx\\ &=\frac{1}{4} c x^4 \tan ^{-1}(a x)^3+\frac{1}{6} a^2 c x^6 \tan ^{-1}(a x)^3-\frac{(3 c) \int x^2 \tan ^{-1}(a x)^2 \, dx}{4 a}+\frac{(3 c) \int \frac{x^2 \tan ^{-1}(a x)^2}{1+a^2 x^2} \, dx}{4 a}-\frac{1}{2} (a c) \int x^4 \tan ^{-1}(a x)^2 \, dx+\frac{1}{2} (a c) \int \frac{x^4 \tan ^{-1}(a x)^2}{1+a^2 x^2} \, dx\\ &=-\frac{c x^3 \tan ^{-1}(a x)^2}{4 a}-\frac{1}{10} a c x^5 \tan ^{-1}(a x)^2+\frac{1}{4} c x^4 \tan ^{-1}(a x)^3+\frac{1}{6} a^2 c x^6 \tan ^{-1}(a x)^3+\frac{1}{2} c \int \frac{x^3 \tan ^{-1}(a x)}{1+a^2 x^2} \, dx+\frac{(3 c) \int \tan ^{-1}(a x)^2 \, dx}{4 a^3}-\frac{(3 c) \int \frac{\tan ^{-1}(a x)^2}{1+a^2 x^2} \, dx}{4 a^3}+\frac{c \int x^2 \tan ^{-1}(a x)^2 \, dx}{2 a}-\frac{c \int \frac{x^2 \tan ^{-1}(a x)^2}{1+a^2 x^2} \, dx}{2 a}+\frac{1}{5} \left (a^2 c\right ) \int \frac{x^5 \tan ^{-1}(a x)}{1+a^2 x^2} \, dx\\ &=\frac{3 c x \tan ^{-1}(a x)^2}{4 a^3}-\frac{c x^3 \tan ^{-1}(a x)^2}{12 a}-\frac{1}{10} a c x^5 \tan ^{-1}(a x)^2-\frac{c \tan ^{-1}(a x)^3}{4 a^4}+\frac{1}{4} c x^4 \tan ^{-1}(a x)^3+\frac{1}{6} a^2 c x^6 \tan ^{-1}(a x)^3+\frac{1}{5} c \int x^3 \tan ^{-1}(a x) \, dx-\frac{1}{5} c \int \frac{x^3 \tan ^{-1}(a x)}{1+a^2 x^2} \, dx-\frac{1}{3} c \int \frac{x^3 \tan ^{-1}(a x)}{1+a^2 x^2} \, dx-\frac{c \int \tan ^{-1}(a x)^2 \, dx}{2 a^3}+\frac{c \int \frac{\tan ^{-1}(a x)^2}{1+a^2 x^2} \, dx}{2 a^3}+\frac{c \int x \tan ^{-1}(a x) \, dx}{2 a^2}-\frac{c \int \frac{x \tan ^{-1}(a x)}{1+a^2 x^2} \, dx}{2 a^2}-\frac{(3 c) \int \frac{x \tan ^{-1}(a x)}{1+a^2 x^2} \, dx}{2 a^2}\\ &=\frac{c x^2 \tan ^{-1}(a x)}{4 a^2}+\frac{1}{20} c x^4 \tan ^{-1}(a x)+\frac{i c \tan ^{-1}(a x)^2}{a^4}+\frac{c x \tan ^{-1}(a x)^2}{4 a^3}-\frac{c x^3 \tan ^{-1}(a x)^2}{12 a}-\frac{1}{10} a c x^5 \tan ^{-1}(a x)^2-\frac{c \tan ^{-1}(a x)^3}{12 a^4}+\frac{1}{4} c x^4 \tan ^{-1}(a x)^3+\frac{1}{6} a^2 c x^6 \tan ^{-1}(a x)^3+\frac{c \int \frac{\tan ^{-1}(a x)}{i-a x} \, dx}{2 a^3}+\frac{(3 c) \int \frac{\tan ^{-1}(a x)}{i-a x} \, dx}{2 a^3}-\frac{c \int x \tan ^{-1}(a x) \, dx}{5 a^2}+\frac{c \int \frac{x \tan ^{-1}(a x)}{1+a^2 x^2} \, dx}{5 a^2}-\frac{c \int x \tan ^{-1}(a x) \, dx}{3 a^2}+\frac{c \int \frac{x \tan ^{-1}(a x)}{1+a^2 x^2} \, dx}{3 a^2}+\frac{c \int \frac{x \tan ^{-1}(a x)}{1+a^2 x^2} \, dx}{a^2}-\frac{c \int \frac{x^2}{1+a^2 x^2} \, dx}{4 a}-\frac{1}{20} (a c) \int \frac{x^4}{1+a^2 x^2} \, dx\\ &=-\frac{c x}{4 a^3}-\frac{c x^2 \tan ^{-1}(a x)}{60 a^2}+\frac{1}{20} c x^4 \tan ^{-1}(a x)+\frac{7 i c \tan ^{-1}(a x)^2}{30 a^4}+\frac{c x \tan ^{-1}(a x)^2}{4 a^3}-\frac{c x^3 \tan ^{-1}(a x)^2}{12 a}-\frac{1}{10} a c x^5 \tan ^{-1}(a x)^2-\frac{c \tan ^{-1}(a x)^3}{12 a^4}+\frac{1}{4} c x^4 \tan ^{-1}(a x)^3+\frac{1}{6} a^2 c x^6 \tan ^{-1}(a x)^3+\frac{2 c \tan ^{-1}(a x) \log \left (\frac{2}{1+i a x}\right )}{a^4}-\frac{c \int \frac{\tan ^{-1}(a x)}{i-a x} \, dx}{5 a^3}+\frac{c \int \frac{1}{1+a^2 x^2} \, dx}{4 a^3}-\frac{c \int \frac{\tan ^{-1}(a x)}{i-a x} \, dx}{3 a^3}-\frac{c \int \frac{\log \left (\frac{2}{1+i a x}\right )}{1+a^2 x^2} \, dx}{2 a^3}-\frac{c \int \frac{\tan ^{-1}(a x)}{i-a x} \, dx}{a^3}-\frac{(3 c) \int \frac{\log \left (\frac{2}{1+i a x}\right )}{1+a^2 x^2} \, dx}{2 a^3}+\frac{c \int \frac{x^2}{1+a^2 x^2} \, dx}{10 a}+\frac{c \int \frac{x^2}{1+a^2 x^2} \, dx}{6 a}-\frac{1}{20} (a c) \int \left (-\frac{1}{a^4}+\frac{x^2}{a^2}+\frac{1}{a^4 \left (1+a^2 x^2\right )}\right ) \, dx\\ &=\frac{c x}{15 a^3}-\frac{c x^3}{60 a}+\frac{c \tan ^{-1}(a x)}{4 a^4}-\frac{c x^2 \tan ^{-1}(a x)}{60 a^2}+\frac{1}{20} c x^4 \tan ^{-1}(a x)+\frac{7 i c \tan ^{-1}(a x)^2}{30 a^4}+\frac{c x \tan ^{-1}(a x)^2}{4 a^3}-\frac{c x^3 \tan ^{-1}(a x)^2}{12 a}-\frac{1}{10} a c x^5 \tan ^{-1}(a x)^2-\frac{c \tan ^{-1}(a x)^3}{12 a^4}+\frac{1}{4} c x^4 \tan ^{-1}(a x)^3+\frac{1}{6} a^2 c x^6 \tan ^{-1}(a x)^3+\frac{7 c \tan ^{-1}(a x) \log \left (\frac{2}{1+i a x}\right )}{15 a^4}+\frac{(i c) \operatorname{Subst}\left (\int \frac{\log (2 x)}{1-2 x} \, dx,x,\frac{1}{1+i a x}\right )}{2 a^4}+\frac{(3 i c) \operatorname{Subst}\left (\int \frac{\log (2 x)}{1-2 x} \, dx,x,\frac{1}{1+i a x}\right )}{2 a^4}-\frac{c \int \frac{1}{1+a^2 x^2} \, dx}{20 a^3}-\frac{c \int \frac{1}{1+a^2 x^2} \, dx}{10 a^3}-\frac{c \int \frac{1}{1+a^2 x^2} \, dx}{6 a^3}+\frac{c \int \frac{\log \left (\frac{2}{1+i a x}\right )}{1+a^2 x^2} \, dx}{5 a^3}+\frac{c \int \frac{\log \left (\frac{2}{1+i a x}\right )}{1+a^2 x^2} \, dx}{3 a^3}+\frac{c \int \frac{\log \left (\frac{2}{1+i a x}\right )}{1+a^2 x^2} \, dx}{a^3}\\ &=\frac{c x}{15 a^3}-\frac{c x^3}{60 a}-\frac{c \tan ^{-1}(a x)}{15 a^4}-\frac{c x^2 \tan ^{-1}(a x)}{60 a^2}+\frac{1}{20} c x^4 \tan ^{-1}(a x)+\frac{7 i c \tan ^{-1}(a x)^2}{30 a^4}+\frac{c x \tan ^{-1}(a x)^2}{4 a^3}-\frac{c x^3 \tan ^{-1}(a x)^2}{12 a}-\frac{1}{10} a c x^5 \tan ^{-1}(a x)^2-\frac{c \tan ^{-1}(a x)^3}{12 a^4}+\frac{1}{4} c x^4 \tan ^{-1}(a x)^3+\frac{1}{6} a^2 c x^6 \tan ^{-1}(a x)^3+\frac{7 c \tan ^{-1}(a x) \log \left (\frac{2}{1+i a x}\right )}{15 a^4}+\frac{i c \text{Li}_2\left (1-\frac{2}{1+i a x}\right )}{a^4}-\frac{(i c) \operatorname{Subst}\left (\int \frac{\log (2 x)}{1-2 x} \, dx,x,\frac{1}{1+i a x}\right )}{5 a^4}-\frac{(i c) \operatorname{Subst}\left (\int \frac{\log (2 x)}{1-2 x} \, dx,x,\frac{1}{1+i a x}\right )}{3 a^4}-\frac{(i c) \operatorname{Subst}\left (\int \frac{\log (2 x)}{1-2 x} \, dx,x,\frac{1}{1+i a x}\right )}{a^4}\\ &=\frac{c x}{15 a^3}-\frac{c x^3}{60 a}-\frac{c \tan ^{-1}(a x)}{15 a^4}-\frac{c x^2 \tan ^{-1}(a x)}{60 a^2}+\frac{1}{20} c x^4 \tan ^{-1}(a x)+\frac{7 i c \tan ^{-1}(a x)^2}{30 a^4}+\frac{c x \tan ^{-1}(a x)^2}{4 a^3}-\frac{c x^3 \tan ^{-1}(a x)^2}{12 a}-\frac{1}{10} a c x^5 \tan ^{-1}(a x)^2-\frac{c \tan ^{-1}(a x)^3}{12 a^4}+\frac{1}{4} c x^4 \tan ^{-1}(a x)^3+\frac{1}{6} a^2 c x^6 \tan ^{-1}(a x)^3+\frac{7 c \tan ^{-1}(a x) \log \left (\frac{2}{1+i a x}\right )}{15 a^4}+\frac{7 i c \text{Li}_2\left (1-\frac{2}{1+i a x}\right )}{30 a^4}\\ \end{align*}
Mathematica [A] time = 0.612491, size = 135, normalized size = 0.62 \[ \frac{c \left (-14 i \text{PolyLog}\left (2,-e^{2 i \tan ^{-1}(a x)}\right )-a^3 x^3+5 \left (2 a^6 x^6+3 a^4 x^4-1\right ) \tan ^{-1}(a x)^3-\left (6 a^5 x^5+5 a^3 x^3-15 a x+14 i\right ) \tan ^{-1}(a x)^2+\tan ^{-1}(a x) \left (3 a^4 x^4-a^2 x^2+28 \log \left (1+e^{2 i \tan ^{-1}(a x)}\right )-4\right )+4 a x\right )}{60 a^4} \]
Warning: Unable to verify antiderivative.
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Maple [A] time = 0.097, size = 313, normalized size = 1.4 \begin{align*}{\frac{{a}^{2}c{x}^{6} \left ( \arctan \left ( ax \right ) \right ) ^{3}}{6}}+{\frac{c{x}^{4} \left ( \arctan \left ( ax \right ) \right ) ^{3}}{4}}-{\frac{ac{x}^{5} \left ( \arctan \left ( ax \right ) \right ) ^{2}}{10}}-{\frac{c{x}^{3} \left ( \arctan \left ( ax \right ) \right ) ^{2}}{12\,a}}+{\frac{cx \left ( \arctan \left ( ax \right ) \right ) ^{2}}{4\,{a}^{3}}}-{\frac{c \left ( \arctan \left ( ax \right ) \right ) ^{3}}{12\,{a}^{4}}}+{\frac{c{x}^{4}\arctan \left ( ax \right ) }{20}}-{\frac{c{x}^{2}\arctan \left ( ax \right ) }{60\,{a}^{2}}}-{\frac{7\,c\arctan \left ( ax \right ) \ln \left ({a}^{2}{x}^{2}+1 \right ) }{30\,{a}^{4}}}-{\frac{c{x}^{3}}{60\,a}}+{\frac{cx}{15\,{a}^{3}}}-{\frac{c\arctan \left ( ax \right ) }{15\,{a}^{4}}}-{\frac{{\frac{7\,i}{60}}c\ln \left ( ax-i \right ) \ln \left ({a}^{2}{x}^{2}+1 \right ) }{{a}^{4}}}+{\frac{{\frac{7\,i}{60}}c\ln \left ( ax-i \right ) \ln \left ( -{\frac{i}{2}} \left ( ax+i \right ) \right ) }{{a}^{4}}}+{\frac{{\frac{7\,i}{120}}c \left ( \ln \left ( ax-i \right ) \right ) ^{2}}{{a}^{4}}}-{\frac{{\frac{7\,i}{60}}c\ln \left ( ax+i \right ) \ln \left ({\frac{i}{2}} \left ( ax-i \right ) \right ) }{{a}^{4}}}+{\frac{{\frac{7\,i}{60}}c\ln \left ( ax+i \right ) \ln \left ({a}^{2}{x}^{2}+1 \right ) }{{a}^{4}}}-{\frac{{\frac{7\,i}{120}}c \left ( \ln \left ( ax+i \right ) \right ) ^{2}}{{a}^{4}}}+{\frac{{\frac{7\,i}{60}}c{\it dilog} \left ( -{\frac{i}{2}} \left ( ax+i \right ) \right ) }{{a}^{4}}}-{\frac{{\frac{7\,i}{60}}c{\it dilog} \left ({\frac{i}{2}} \left ( ax-i \right ) \right ) }{{a}^{4}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F(-1)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \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 ({\left (a^{2} c x^{5} + c x^{3}\right )} \arctan \left (a x\right )^{3}, 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*} c \left (\int x^{3} \operatorname{atan}^{3}{\left (a x \right )}\, dx + \int a^{2} x^{5} \operatorname{atan}^{3}{\left (a x \right )}\, dx\right ) \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{\left (a^{2} c x^{2} + c\right )} x^{3} \arctan \left (a x\right )^{3}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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