Optimal. Leaf size=139 \[ -\frac{\log \left (\sqrt [3]{1-a} \sqrt [3]{b} x+(1-a)^{2/3}+b^{2/3} x^2\right )}{6 (1-a)^{2/3} \sqrt [3]{b}}+\frac{\log \left (\sqrt [3]{1-a}-\sqrt [3]{b} x\right )}{3 (1-a)^{2/3} \sqrt [3]{b}}-\frac{\tan ^{-1}\left (\frac{\frac{2 \sqrt [3]{b} x}{\sqrt [3]{1-a}}+1}{\sqrt{3}}\right )}{\sqrt{3} (1-a)^{2/3} \sqrt [3]{b}} \]
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Rubi [A] time = 0.0977801, antiderivative size = 139, normalized size of antiderivative = 1., number of steps used = 6, number of rules used = 6, integrand size = 10, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.6, Rules used = {200, 31, 634, 617, 204, 628} \[ -\frac{\log \left (\sqrt [3]{1-a} \sqrt [3]{b} x+(1-a)^{2/3}+b^{2/3} x^2\right )}{6 (1-a)^{2/3} \sqrt [3]{b}}+\frac{\log \left (\sqrt [3]{1-a}-\sqrt [3]{b} x\right )}{3 (1-a)^{2/3} \sqrt [3]{b}}-\frac{\tan ^{-1}\left (\frac{\frac{2 \sqrt [3]{b} x}{\sqrt [3]{1-a}}+1}{\sqrt{3}}\right )}{\sqrt{3} (1-a)^{2/3} \sqrt [3]{b}} \]
Antiderivative was successfully verified.
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Rule 200
Rule 31
Rule 634
Rule 617
Rule 204
Rule 628
Rubi steps
\begin{align*} \int \frac{1}{-1+a+b x^3} \, dx &=\frac{\int \frac{1}{-\sqrt [3]{1-a}+\sqrt [3]{b} x} \, dx}{3 (1-a)^{2/3}}+\frac{\int \frac{-2 \sqrt [3]{1-a}-\sqrt [3]{b} x}{(1-a)^{2/3}+\sqrt [3]{1-a} \sqrt [3]{b} x+b^{2/3} x^2} \, dx}{3 (1-a)^{2/3}}\\ &=\frac{\log \left (\sqrt [3]{1-a}-\sqrt [3]{b} x\right )}{3 (1-a)^{2/3} \sqrt [3]{b}}-\frac{\int \frac{1}{(1-a)^{2/3}+\sqrt [3]{1-a} \sqrt [3]{b} x+b^{2/3} x^2} \, dx}{2 \sqrt [3]{1-a}}-\frac{\int \frac{\sqrt [3]{1-a} \sqrt [3]{b}+2 b^{2/3} x}{(1-a)^{2/3}+\sqrt [3]{1-a} \sqrt [3]{b} x+b^{2/3} x^2} \, dx}{6 (1-a)^{2/3} \sqrt [3]{b}}\\ &=\frac{\log \left (\sqrt [3]{1-a}-\sqrt [3]{b} x\right )}{3 (1-a)^{2/3} \sqrt [3]{b}}-\frac{\log \left ((1-a)^{2/3}+\sqrt [3]{1-a} \sqrt [3]{b} x+b^{2/3} x^2\right )}{6 (1-a)^{2/3} \sqrt [3]{b}}+\frac{\operatorname{Subst}\left (\int \frac{1}{-3-x^2} \, dx,x,1+\frac{2 \sqrt [3]{b} x}{\sqrt [3]{1-a}}\right )}{(1-a)^{2/3} \sqrt [3]{b}}\\ &=-\frac{\tan ^{-1}\left (\frac{1+\frac{2 \sqrt [3]{b} x}{\sqrt [3]{1-a}}}{\sqrt{3}}\right )}{\sqrt{3} (1-a)^{2/3} \sqrt [3]{b}}+\frac{\log \left (\sqrt [3]{1-a}-\sqrt [3]{b} x\right )}{3 (1-a)^{2/3} \sqrt [3]{b}}-\frac{\log \left ((1-a)^{2/3}+\sqrt [3]{1-a} \sqrt [3]{b} x+b^{2/3} x^2\right )}{6 (1-a)^{2/3} \sqrt [3]{b}}\\ \end{align*}
Mathematica [A] time = 0.0326359, size = 101, normalized size = 0.73 \[ \frac{-\log \left (-\sqrt [3]{a-1} \sqrt [3]{b} x+(a-1)^{2/3}+b^{2/3} x^2\right )+2 \log \left (\sqrt [3]{a-1}+\sqrt [3]{b} x\right )+2 \sqrt{3} \tan ^{-1}\left (\frac{\frac{2 \sqrt [3]{b} x}{\sqrt [3]{a-1}}-1}{\sqrt{3}}\right )}{6 (a-1)^{2/3} \sqrt [3]{b}} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.004, size = 105, normalized size = 0.8 \begin{align*}{\frac{1}{3\,b}\ln \left ( x+\sqrt [3]{{\frac{a-1}{b}}} \right ) \left ({\frac{a-1}{b}} \right ) ^{-{\frac{2}{3}}}}-{\frac{1}{6\,b}\ln \left ({x}^{2}-\sqrt [3]{{\frac{a-1}{b}}}x+ \left ({\frac{a-1}{b}} \right ) ^{{\frac{2}{3}}} \right ) \left ({\frac{a-1}{b}} \right ) ^{-{\frac{2}{3}}}}+{\frac{\sqrt{3}}{3\,b}\arctan \left ({\frac{\sqrt{3}}{3} \left ( 2\,{x{\frac{1}{\sqrt [3]{{\frac{a-1}{b}}}}}}-1 \right ) } \right ) \left ({\frac{a-1}{b}} \right ) ^{-{\frac{2}{3}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: ValueError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.53239, size = 1230, normalized size = 8.85 \begin{align*} \text{result too large to display} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0.316754, size = 32, normalized size = 0.23 \begin{align*} \operatorname{RootSum}{\left (t^{3} \left (27 a^{2} b - 54 a b + 27 b\right ) - 1, \left ( t \mapsto t \log{\left (3 t a - 3 t + x \right )} \right )\right )} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.56081, size = 192, normalized size = 1.38 \begin{align*} \frac{{\left (-a b^{2} + b^{2}\right )}^{\frac{1}{3}} \arctan \left (\frac{\sqrt{3}{\left (2 \, x + \left (-\frac{a - 1}{b}\right )^{\frac{1}{3}}\right )}}{3 \, \left (-\frac{a - 1}{b}\right )^{\frac{1}{3}}}\right )}{\sqrt{3} a b - \sqrt{3} b} + \frac{{\left (-a b^{2} + b^{2}\right )}^{\frac{1}{3}} \log \left (x^{2} + x \left (-\frac{a - 1}{b}\right )^{\frac{1}{3}} + \left (-\frac{a - 1}{b}\right )^{\frac{2}{3}}\right )}{6 \,{\left (a b - b\right )}} - \frac{\left (-\frac{a - 1}{b}\right )^{\frac{1}{3}} \log \left ({\left | x - \left (-\frac{a - 1}{b}\right )^{\frac{1}{3}} \right |}\right )}{3 \,{\left (a - 1\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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