Optimal. Leaf size=40 \[ \frac{5}{6} \log \left (x^2+x+1\right )-\frac{2}{3} \log (1-x)+\sqrt{3} \tan ^{-1}\left (\frac{2 x+1}{\sqrt{3}}\right ) \]
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Rubi [A] time = 0.0301783, antiderivative size = 40, normalized size of antiderivative = 1., number of steps used = 6, number of rules used = 6, integrand size = 13, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.462, Rules used = {1875, 31, 634, 618, 204, 628} \[ \frac{5}{6} \log \left (x^2+x+1\right )-\frac{2}{3} \log (1-x)+\sqrt{3} \tan ^{-1}\left (\frac{2 x+1}{\sqrt{3}}\right ) \]
Antiderivative was successfully verified.
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Rule 1875
Rule 31
Rule 634
Rule 618
Rule 204
Rule 628
Rubi steps
\begin{align*} \int \frac{-3+x^2}{-1+x^3} \, dx &=-\left (\frac{1}{3} \int \frac{-7-5 x}{1+x+x^2} \, dx\right )+\frac{2}{3} \int \frac{1}{1-x} \, dx\\ &=-\frac{2}{3} \log (1-x)+\frac{5}{6} \int \frac{1+2 x}{1+x+x^2} \, dx+\frac{3}{2} \int \frac{1}{1+x+x^2} \, dx\\ &=-\frac{2}{3} \log (1-x)+\frac{5}{6} \log \left (1+x+x^2\right )-3 \operatorname{Subst}\left (\int \frac{1}{-3-x^2} \, dx,x,1+2 x\right )\\ &=\sqrt{3} \tan ^{-1}\left (\frac{1+2 x}{\sqrt{3}}\right )-\frac{2}{3} \log (1-x)+\frac{5}{6} \log \left (1+x+x^2\right )\\ \end{align*}
Mathematica [A] time = 0.0098046, size = 50, normalized size = 1.25 \[ \frac{1}{2} \log \left (x^2+x+1\right )+\frac{1}{3} \log \left (1-x^3\right )-\log (1-x)+\sqrt{3} \tan ^{-1}\left (\frac{2 x+1}{\sqrt{3}}\right ) \]
Antiderivative was successfully verified.
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Maple [A] time = 0.005, size = 32, normalized size = 0.8 \begin{align*} -{\frac{2\,\ln \left ( -1+x \right ) }{3}}+{\frac{5\,\ln \left ({x}^{2}+x+1 \right ) }{6}}+\arctan \left ({\frac{ \left ( 1+2\,x \right ) \sqrt{3}}{3}} \right ) \sqrt{3} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 1.45667, size = 42, normalized size = 1.05 \begin{align*} \sqrt{3} \arctan \left (\frac{1}{3} \, \sqrt{3}{\left (2 \, x + 1\right )}\right ) + \frac{5}{6} \, \log \left (x^{2} + x + 1\right ) - \frac{2}{3} \, \log \left (x - 1\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.00098, size = 107, normalized size = 2.68 \begin{align*} \sqrt{3} \arctan \left (\frac{1}{3} \, \sqrt{3}{\left (2 \, x + 1\right )}\right ) + \frac{5}{6} \, \log \left (x^{2} + x + 1\right ) - \frac{2}{3} \, \log \left (x - 1\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0.123212, size = 42, normalized size = 1.05 \begin{align*} - \frac{2 \log{\left (x - 1 \right )}}{3} + \frac{5 \log{\left (x^{2} + x + 1 \right )}}{6} + \sqrt{3} \operatorname{atan}{\left (\frac{2 \sqrt{3} x}{3} + \frac{\sqrt{3}}{3} \right )} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.20438, size = 43, normalized size = 1.08 \begin{align*} \sqrt{3} \arctan \left (\frac{1}{3} \, \sqrt{3}{\left (2 \, x + 1\right )}\right ) + \frac{5}{6} \, \log \left (x^{2} + x + 1\right ) - \frac{2}{3} \, \log \left ({\left | x - 1 \right |}\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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