Optimal. Leaf size=51 \[ \frac{x^3}{18 a^3}+\frac{x}{6 a^5}-\frac{\tanh ^{-1}(a x)}{6 a^6}+\frac{x^5}{30 a}+\frac{1}{6} x^6 \coth ^{-1}(a x) \]
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Rubi [A] time = 0.0279481, antiderivative size = 51, normalized size of antiderivative = 1., number of steps used = 4, number of rules used = 3, integrand size = 8, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.375, Rules used = {5917, 302, 206} \[ \frac{x^3}{18 a^3}+\frac{x}{6 a^5}-\frac{\tanh ^{-1}(a x)}{6 a^6}+\frac{x^5}{30 a}+\frac{1}{6} x^6 \coth ^{-1}(a x) \]
Antiderivative was successfully verified.
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Rule 5917
Rule 302
Rule 206
Rubi steps
\begin{align*} \int x^5 \coth ^{-1}(a x) \, dx &=\frac{1}{6} x^6 \coth ^{-1}(a x)-\frac{1}{6} a \int \frac{x^6}{1-a^2 x^2} \, dx\\ &=\frac{1}{6} x^6 \coth ^{-1}(a x)-\frac{1}{6} a \int \left (-\frac{1}{a^6}-\frac{x^2}{a^4}-\frac{x^4}{a^2}+\frac{1}{a^6 \left (1-a^2 x^2\right )}\right ) \, dx\\ &=\frac{x}{6 a^5}+\frac{x^3}{18 a^3}+\frac{x^5}{30 a}+\frac{1}{6} x^6 \coth ^{-1}(a x)-\frac{\int \frac{1}{1-a^2 x^2} \, dx}{6 a^5}\\ &=\frac{x}{6 a^5}+\frac{x^3}{18 a^3}+\frac{x^5}{30 a}+\frac{1}{6} x^6 \coth ^{-1}(a x)-\frac{\tanh ^{-1}(a x)}{6 a^6}\\ \end{align*}
Mathematica [A] time = 0.0089957, size = 67, normalized size = 1.31 \[ \frac{x^3}{18 a^3}+\frac{x}{6 a^5}+\frac{\log (1-a x)}{12 a^6}-\frac{\log (a x+1)}{12 a^6}+\frac{x^5}{30 a}+\frac{1}{6} x^6 \coth ^{-1}(a x) \]
Antiderivative was successfully verified.
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Maple [A] time = 0.035, size = 55, normalized size = 1.1 \begin{align*}{\frac{{x}^{6}{\rm arccoth} \left (ax\right )}{6}}+{\frac{{x}^{5}}{30\,a}}+{\frac{{x}^{3}}{18\,{a}^{3}}}+{\frac{x}{6\,{a}^{5}}}+{\frac{\ln \left ( ax-1 \right ) }{12\,{a}^{6}}}-{\frac{\ln \left ( ax+1 \right ) }{12\,{a}^{6}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 0.964772, size = 82, normalized size = 1.61 \begin{align*} \frac{1}{6} \, x^{6} \operatorname{arcoth}\left (a x\right ) + \frac{1}{180} \, a{\left (\frac{2 \,{\left (3 \, a^{4} x^{5} + 5 \, a^{2} x^{3} + 15 \, x\right )}}{a^{6}} - \frac{15 \, \log \left (a x + 1\right )}{a^{7}} + \frac{15 \, \log \left (a x - 1\right )}{a^{7}}\right )} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.54015, size = 120, normalized size = 2.35 \begin{align*} \frac{6 \, a^{5} x^{5} + 10 \, a^{3} x^{3} + 30 \, a x + 15 \,{\left (a^{6} x^{6} - 1\right )} \log \left (\frac{a x + 1}{a x - 1}\right )}{180 \, a^{6}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 2.07, size = 49, normalized size = 0.96 \begin{align*} \begin{cases} \frac{x^{6} \operatorname{acoth}{\left (a x \right )}}{6} + \frac{x^{5}}{30 a} + \frac{x^{3}}{18 a^{3}} + \frac{x}{6 a^{5}} - \frac{\operatorname{acoth}{\left (a x \right )}}{6 a^{6}} & \text{for}\: a \neq 0 \\\frac{i \pi x^{6}}{12} & \text{otherwise} \end{cases} \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 x^{5} \operatorname{arcoth}\left (a x\right )\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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