Optimal. Leaf size=71 \[ \frac{13}{a c^2 (1-a x)}-\frac{6}{a c^2 (1-a x)^2}+\frac{4}{3 a c^2 (1-a x)^3}+\frac{6 \log (1-a x)}{a c^2}+\frac{x}{c^2} \]
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Rubi [A] time = 0.126946, antiderivative size = 71, normalized size of antiderivative = 1., number of steps used = 4, number of rules used = 3, integrand size = 22, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.136, Rules used = {6131, 6129, 88} \[ \frac{13}{a c^2 (1-a x)}-\frac{6}{a c^2 (1-a x)^2}+\frac{4}{3 a c^2 (1-a x)^3}+\frac{6 \log (1-a x)}{a c^2}+\frac{x}{c^2} \]
Antiderivative was successfully verified.
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Rule 6131
Rule 6129
Rule 88
Rubi steps
\begin{align*} \int \frac{e^{4 \tanh ^{-1}(a x)}}{\left (c-\frac{c}{a x}\right )^2} \, dx &=\frac{a^2 \int \frac{e^{4 \tanh ^{-1}(a x)} x^2}{(1-a x)^2} \, dx}{c^2}\\ &=\frac{a^2 \int \frac{x^2 (1+a x)^2}{(1-a x)^4} \, dx}{c^2}\\ &=\frac{a^2 \int \left (\frac{1}{a^2}+\frac{4}{a^2 (-1+a x)^4}+\frac{12}{a^2 (-1+a x)^3}+\frac{13}{a^2 (-1+a x)^2}+\frac{6}{a^2 (-1+a x)}\right ) \, dx}{c^2}\\ &=\frac{x}{c^2}+\frac{4}{3 a c^2 (1-a x)^3}-\frac{6}{a c^2 (1-a x)^2}+\frac{13}{a c^2 (1-a x)}+\frac{6 \log (1-a x)}{a c^2}\\ \end{align*}
Mathematica [A] time = 0.105242, size = 63, normalized size = 0.89 \[ \frac{3 a^4 x^4-9 a^3 x^3-30 a^2 x^2+57 a x+18 (a x-1)^3 \log (1-a x)-25}{3 a c^2 (a x-1)^3} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.034, size = 66, normalized size = 0.9 \begin{align*}{\frac{x}{{c}^{2}}}-{\frac{4}{3\,a{c}^{2} \left ( ax-1 \right ) ^{3}}}-6\,{\frac{1}{a{c}^{2} \left ( ax-1 \right ) ^{2}}}-13\,{\frac{1}{a{c}^{2} \left ( ax-1 \right ) }}+6\,{\frac{\ln \left ( ax-1 \right ) }{a{c}^{2}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 0.959683, size = 101, normalized size = 1.42 \begin{align*} -\frac{39 \, a^{2} x^{2} - 60 \, a x + 25}{3 \,{\left (a^{4} c^{2} x^{3} - 3 \, a^{3} c^{2} x^{2} + 3 \, a^{2} c^{2} x - a c^{2}\right )}} + \frac{x}{c^{2}} + \frac{6 \, \log \left (a x - 1\right )}{a c^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.95806, size = 216, normalized size = 3.04 \begin{align*} \frac{3 \, a^{4} x^{4} - 9 \, a^{3} x^{3} - 30 \, a^{2} x^{2} + 57 \, a x + 18 \,{\left (a^{3} x^{3} - 3 \, a^{2} x^{2} + 3 \, a x - 1\right )} \log \left (a x - 1\right ) - 25}{3 \,{\left (a^{4} c^{2} x^{3} - 3 \, a^{3} c^{2} x^{2} + 3 \, a^{2} c^{2} x - a c^{2}\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0.57543, size = 73, normalized size = 1.03 \begin{align*} - \frac{39 a^{2} x^{2} - 60 a x + 25}{3 a^{4} c^{2} x^{3} - 9 a^{3} c^{2} x^{2} + 9 a^{2} c^{2} x - 3 a c^{2}} + \frac{x}{c^{2}} + \frac{6 \log{\left (a x - 1 \right )}}{a c^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.14921, size = 68, normalized size = 0.96 \begin{align*} \frac{x}{c^{2}} + \frac{6 \, \log \left ({\left | a x - 1 \right |}\right )}{a c^{2}} - \frac{39 \, a^{2} x^{2} - 60 \, a x + 25}{3 \,{\left (a x - 1\right )}^{3} a c^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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