Optimal. Leaf size=206 \[ -\frac{3}{2} b^2 \text{PolyLog}\left (3,1-\frac{2}{1+i c x}\right ) \left (a+b \tan ^{-1}(c x)\right )+\frac{3}{2} b^2 \text{PolyLog}\left (3,-1+\frac{2}{1+i c x}\right ) \left (a+b \tan ^{-1}(c x)\right )-\frac{3}{2} i b \text{PolyLog}\left (2,1-\frac{2}{1+i c x}\right ) \left (a+b \tan ^{-1}(c x)\right )^2+\frac{3}{2} i b \text{PolyLog}\left (2,-1+\frac{2}{1+i c x}\right ) \left (a+b \tan ^{-1}(c x)\right )^2+\frac{3}{4} i b^3 \text{PolyLog}\left (4,1-\frac{2}{1+i c x}\right )-\frac{3}{4} i b^3 \text{PolyLog}\left (4,-1+\frac{2}{1+i c x}\right )+2 \tanh ^{-1}\left (1-\frac{2}{1+i c x}\right ) \left (a+b \tan ^{-1}(c x)\right )^3 \]
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Rubi [A] time = 0.427019, antiderivative size = 206, normalized size of antiderivative = 1., number of steps used = 8, number of rules used = 6, integrand size = 14, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.429, Rules used = {4850, 4988, 4884, 4994, 4998, 6610} \[ -\frac{3}{2} b^2 \text{PolyLog}\left (3,1-\frac{2}{1+i c x}\right ) \left (a+b \tan ^{-1}(c x)\right )+\frac{3}{2} b^2 \text{PolyLog}\left (3,-1+\frac{2}{1+i c x}\right ) \left (a+b \tan ^{-1}(c x)\right )-\frac{3}{2} i b \text{PolyLog}\left (2,1-\frac{2}{1+i c x}\right ) \left (a+b \tan ^{-1}(c x)\right )^2+\frac{3}{2} i b \text{PolyLog}\left (2,-1+\frac{2}{1+i c x}\right ) \left (a+b \tan ^{-1}(c x)\right )^2+\frac{3}{4} i b^3 \text{PolyLog}\left (4,1-\frac{2}{1+i c x}\right )-\frac{3}{4} i b^3 \text{PolyLog}\left (4,-1+\frac{2}{1+i c x}\right )+2 \tanh ^{-1}\left (1-\frac{2}{1+i c x}\right ) \left (a+b \tan ^{-1}(c x)\right )^3 \]
Antiderivative was successfully verified.
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Rule 4850
Rule 4988
Rule 4884
Rule 4994
Rule 4998
Rule 6610
Rubi steps
\begin{align*} \int \frac{\left (a+b \tan ^{-1}(c x)\right )^3}{x} \, dx &=2 \left (a+b \tan ^{-1}(c x)\right )^3 \tanh ^{-1}\left (1-\frac{2}{1+i c x}\right )-(6 b c) \int \frac{\left (a+b \tan ^{-1}(c x)\right )^2 \tanh ^{-1}\left (1-\frac{2}{1+i c x}\right )}{1+c^2 x^2} \, dx\\ &=2 \left (a+b \tan ^{-1}(c x)\right )^3 \tanh ^{-1}\left (1-\frac{2}{1+i c x}\right )+(3 b c) \int \frac{\left (a+b \tan ^{-1}(c x)\right )^2 \log \left (\frac{2}{1+i c x}\right )}{1+c^2 x^2} \, dx-(3 b c) \int \frac{\left (a+b \tan ^{-1}(c x)\right )^2 \log \left (2-\frac{2}{1+i c x}\right )}{1+c^2 x^2} \, dx\\ &=2 \left (a+b \tan ^{-1}(c x)\right )^3 \tanh ^{-1}\left (1-\frac{2}{1+i c x}\right )-\frac{3}{2} i b \left (a+b \tan ^{-1}(c x)\right )^2 \text{Li}_2\left (1-\frac{2}{1+i c x}\right )+\frac{3}{2} i b \left (a+b \tan ^{-1}(c x)\right )^2 \text{Li}_2\left (-1+\frac{2}{1+i c x}\right )+\left (3 i b^2 c\right ) \int \frac{\left (a+b \tan ^{-1}(c x)\right ) \text{Li}_2\left (1-\frac{2}{1+i c x}\right )}{1+c^2 x^2} \, dx-\left (3 i b^2 c\right ) \int \frac{\left (a+b \tan ^{-1}(c x)\right ) \text{Li}_2\left (-1+\frac{2}{1+i c x}\right )}{1+c^2 x^2} \, dx\\ &=2 \left (a+b \tan ^{-1}(c x)\right )^3 \tanh ^{-1}\left (1-\frac{2}{1+i c x}\right )-\frac{3}{2} i b \left (a+b \tan ^{-1}(c x)\right )^2 \text{Li}_2\left (1-\frac{2}{1+i c x}\right )+\frac{3}{2} i b \left (a+b \tan ^{-1}(c x)\right )^2 \text{Li}_2\left (-1+\frac{2}{1+i c x}\right )-\frac{3}{2} b^2 \left (a+b \tan ^{-1}(c x)\right ) \text{Li}_3\left (1-\frac{2}{1+i c x}\right )+\frac{3}{2} b^2 \left (a+b \tan ^{-1}(c x)\right ) \text{Li}_3\left (-1+\frac{2}{1+i c x}\right )+\frac{1}{2} \left (3 b^3 c\right ) \int \frac{\text{Li}_3\left (1-\frac{2}{1+i c x}\right )}{1+c^2 x^2} \, dx-\frac{1}{2} \left (3 b^3 c\right ) \int \frac{\text{Li}_3\left (-1+\frac{2}{1+i c x}\right )}{1+c^2 x^2} \, dx\\ &=2 \left (a+b \tan ^{-1}(c x)\right )^3 \tanh ^{-1}\left (1-\frac{2}{1+i c x}\right )-\frac{3}{2} i b \left (a+b \tan ^{-1}(c x)\right )^2 \text{Li}_2\left (1-\frac{2}{1+i c x}\right )+\frac{3}{2} i b \left (a+b \tan ^{-1}(c x)\right )^2 \text{Li}_2\left (-1+\frac{2}{1+i c x}\right )-\frac{3}{2} b^2 \left (a+b \tan ^{-1}(c x)\right ) \text{Li}_3\left (1-\frac{2}{1+i c x}\right )+\frac{3}{2} b^2 \left (a+b \tan ^{-1}(c x)\right ) \text{Li}_3\left (-1+\frac{2}{1+i c x}\right )+\frac{3}{4} i b^3 \text{Li}_4\left (1-\frac{2}{1+i c x}\right )-\frac{3}{4} i b^3 \text{Li}_4\left (-1+\frac{2}{1+i c x}\right )\\ \end{align*}
Mathematica [A] time = 0.136384, size = 212, normalized size = 1.03 \[ \frac{3}{4} i b \left (2 \text{PolyLog}\left (2,\frac{c x+i}{-c x+i}\right ) \left (a+b \tan ^{-1}(c x)\right )^2-2 \text{PolyLog}\left (2,\frac{c x+i}{c x-i}\right ) \left (a+b \tan ^{-1}(c x)\right )^2+b \left (-2 i \text{PolyLog}\left (3,\frac{c x+i}{-c x+i}\right ) \left (a+b \tan ^{-1}(c x)\right )+2 i \text{PolyLog}\left (3,\frac{c x+i}{c x-i}\right ) \left (a+b \tan ^{-1}(c x)\right )+b \left (\text{PolyLog}\left (4,\frac{c x+i}{c x-i}\right )-\text{PolyLog}\left (4,\frac{c x+i}{-c x+i}\right )\right )\right )\right )+2 \tanh ^{-1}\left (\frac{c x+i}{c x-i}\right ) \left (a+b \tan ^{-1}(c x)\right )^3 \]
Antiderivative was successfully verified.
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Maple [C] time = 0.301, size = 2309, normalized size = 11.2 \begin{align*} \text{result too large to display} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F] time = 0., size = 0, normalized size = 0. \begin{align*} a^{3} \log \left (x\right ) + \frac{1}{32} \, \int \frac{28 \, b^{3} \arctan \left (c x\right )^{3} + 3 \, b^{3} \arctan \left (c x\right ) \log \left (c^{2} x^{2} + 1\right )^{2} + 96 \, a b^{2} \arctan \left (c x\right )^{2} + 96 \, a^{2} b \arctan \left (c x\right )}{x}\,{d x} \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{b^{3} \arctan \left (c x\right )^{3} + 3 \, a b^{2} \arctan \left (c x\right )^{2} + 3 \, a^{2} b \arctan \left (c x\right ) + a^{3}}{x}, 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 + b \operatorname{atan}{\left (c x \right )}\right )^{3}}{x}\, 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 (b \arctan \left (c x\right ) + a\right )}^{3}}{x}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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