Optimal. Leaf size=14 \[ \frac{2 \log (1-a x)}{a}+x \]
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Rubi [A] time = 0.0141243, antiderivative size = 14, 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 = {6167, 6125, 43} \[ \frac{2 \log (1-a x)}{a}+x \]
Antiderivative was successfully verified.
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Rule 6167
Rule 6125
Rule 43
Rubi steps
\begin{align*} \int e^{2 \coth ^{-1}(a x)} \, dx &=-\int e^{2 \tanh ^{-1}(a x)} \, dx\\ &=-\int \frac{1+a x}{1-a x} \, dx\\ &=-\int \left (-1-\frac{2}{-1+a x}\right ) \, dx\\ &=x+\frac{2 \log (1-a x)}{a}\\ \end{align*}
Mathematica [A] time = 0.0111536, size = 14, normalized size = 1. \[ \frac{2 \log (1-a x)}{a}+x \]
Antiderivative was successfully verified.
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Maple [A] time = 0.042, size = 14, normalized size = 1. \begin{align*} x+2\,{\frac{\ln \left ( ax-1 \right ) }{a}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 1.0179, size = 18, normalized size = 1.29 \begin{align*} x + \frac{2 \, \log \left (a x - 1\right )}{a} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.78469, size = 35, normalized size = 2.5 \begin{align*} \frac{a x + 2 \, \log \left (a x - 1\right )}{a} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0.09782, size = 10, normalized size = 0.71 \begin{align*} x + \frac{2 \log{\left (a x - 1 \right )}}{a} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.12736, size = 19, normalized size = 1.36 \begin{align*} x + \frac{2 \, \log \left ({\left | a x - 1 \right |}\right )}{a} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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