Optimal. Leaf size=111 \[ \frac {3 a^{2/3} \log \left (\sqrt [3]{a}+\sqrt [3]{b} \sqrt [3]{x}\right )}{2 b^{5/3}}-\frac {a^{2/3} \log (a+b x)}{2 b^{5/3}}+\frac {\sqrt {3} a^{2/3} \tan ^{-1}\left (\frac {\sqrt [3]{a}-2 \sqrt [3]{b} \sqrt [3]{x}}{\sqrt {3} \sqrt [3]{a}}\right )}{b^{5/3}}+\frac {3 x^{2/3}}{2 b} \]
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Rubi [A] time = 0.04, antiderivative size = 111, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 5, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.385, Rules used = {50, 56, 617, 204, 31} \[ \frac {3 a^{2/3} \log \left (\sqrt [3]{a}+\sqrt [3]{b} \sqrt [3]{x}\right )}{2 b^{5/3}}-\frac {a^{2/3} \log (a+b x)}{2 b^{5/3}}+\frac {\sqrt {3} a^{2/3} \tan ^{-1}\left (\frac {\sqrt [3]{a}-2 \sqrt [3]{b} \sqrt [3]{x}}{\sqrt {3} \sqrt [3]{a}}\right )}{b^{5/3}}+\frac {3 x^{2/3}}{2 b} \]
Antiderivative was successfully verified.
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Rule 31
Rule 50
Rule 56
Rule 204
Rule 617
Rubi steps
\begin {align*} \int \frac {x^{2/3}}{a+b x} \, dx &=\frac {3 x^{2/3}}{2 b}-\frac {a \int \frac {1}{\sqrt [3]{x} (a+b x)} \, dx}{b}\\ &=\frac {3 x^{2/3}}{2 b}-\frac {a^{2/3} \log (a+b x)}{2 b^{5/3}}-\frac {(3 a) \operatorname {Subst}\left (\int \frac {1}{\frac {a^{2/3}}{b^{2/3}}-\frac {\sqrt [3]{a} x}{\sqrt [3]{b}}+x^2} \, dx,x,\sqrt [3]{x}\right )}{2 b^2}+\frac {\left (3 a^{2/3}\right ) \operatorname {Subst}\left (\int \frac {1}{\frac {\sqrt [3]{a}}{\sqrt [3]{b}}+x} \, dx,x,\sqrt [3]{x}\right )}{2 b^{5/3}}\\ &=\frac {3 x^{2/3}}{2 b}+\frac {3 a^{2/3} \log \left (\sqrt [3]{a}+\sqrt [3]{b} \sqrt [3]{x}\right )}{2 b^{5/3}}-\frac {a^{2/3} \log (a+b x)}{2 b^{5/3}}-\frac {\left (3 a^{2/3}\right ) \operatorname {Subst}\left (\int \frac {1}{-3-x^2} \, dx,x,1-\frac {2 \sqrt [3]{b} \sqrt [3]{x}}{\sqrt [3]{a}}\right )}{b^{5/3}}\\ &=\frac {3 x^{2/3}}{2 b}+\frac {\sqrt {3} a^{2/3} \tan ^{-1}\left (\frac {1-\frac {2 \sqrt [3]{b} \sqrt [3]{x}}{\sqrt [3]{a}}}{\sqrt {3}}\right )}{b^{5/3}}+\frac {3 a^{2/3} \log \left (\sqrt [3]{a}+\sqrt [3]{b} \sqrt [3]{x}\right )}{2 b^{5/3}}-\frac {a^{2/3} \log (a+b x)}{2 b^{5/3}}\\ \end {align*}
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Mathematica [C] time = 0.01, size = 29, normalized size = 0.26 \[ -\frac {3 x^{2/3} \left (\, _2F_1\left (\frac {2}{3},1;\frac {5}{3};-\frac {b x}{a}\right )-1\right )}{2 b} \]
Antiderivative was successfully verified.
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fricas [A] time = 0.45, size = 128, normalized size = 1.15 \[ -\frac {2 \, \sqrt {3} \left (\frac {a^{2}}{b^{2}}\right )^{\frac {1}{3}} \arctan \left (\frac {2 \, \sqrt {3} b x^{\frac {1}{3}} \left (\frac {a^{2}}{b^{2}}\right )^{\frac {1}{3}} - \sqrt {3} a}{3 \, a}\right ) + \left (\frac {a^{2}}{b^{2}}\right )^{\frac {1}{3}} \log \left (-b x^{\frac {1}{3}} \left (\frac {a^{2}}{b^{2}}\right )^{\frac {2}{3}} + a x^{\frac {2}{3}} + a \left (\frac {a^{2}}{b^{2}}\right )^{\frac {1}{3}}\right ) - 2 \, \left (\frac {a^{2}}{b^{2}}\right )^{\frac {1}{3}} \log \left (b \left (\frac {a^{2}}{b^{2}}\right )^{\frac {2}{3}} + a x^{\frac {1}{3}}\right ) - 3 \, x^{\frac {2}{3}}}{2 \, b} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 1.04, size = 118, normalized size = 1.06 \[ \frac {\left (-\frac {a}{b}\right )^{\frac {2}{3}} \log \left ({\left | x^{\frac {1}{3}} - \left (-\frac {a}{b}\right )^{\frac {1}{3}} \right |}\right )}{b} + \frac {3 \, x^{\frac {2}{3}}}{2 \, b} + \frac {\sqrt {3} \left (-a b^{2}\right )^{\frac {2}{3}} \arctan \left (\frac {\sqrt {3} {\left (2 \, x^{\frac {1}{3}} + \left (-\frac {a}{b}\right )^{\frac {1}{3}}\right )}}{3 \, \left (-\frac {a}{b}\right )^{\frac {1}{3}}}\right )}{b^{3}} - \frac {\left (-a b^{2}\right )^{\frac {2}{3}} \log \left (x^{\frac {2}{3}} + x^{\frac {1}{3}} \left (-\frac {a}{b}\right )^{\frac {1}{3}} + \left (-\frac {a}{b}\right )^{\frac {2}{3}}\right )}{2 \, b^{3}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.01, size = 107, normalized size = 0.96 \[ -\frac {\sqrt {3}\, a \arctan \left (\frac {\sqrt {3}\, \left (\frac {2 x^{\frac {1}{3}}}{\left (\frac {a}{b}\right )^{\frac {1}{3}}}-1\right )}{3}\right )}{\left (\frac {a}{b}\right )^{\frac {1}{3}} b^{2}}+\frac {a \ln \left (x^{\frac {1}{3}}+\left (\frac {a}{b}\right )^{\frac {1}{3}}\right )}{\left (\frac {a}{b}\right )^{\frac {1}{3}} b^{2}}-\frac {a \ln \left (x^{\frac {2}{3}}-\left (\frac {a}{b}\right )^{\frac {1}{3}} x^{\frac {1}{3}}+\left (\frac {a}{b}\right )^{\frac {2}{3}}\right )}{2 \left (\frac {a}{b}\right )^{\frac {1}{3}} b^{2}}+\frac {3 x^{\frac {2}{3}}}{2 b} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 2.90, size = 114, normalized size = 1.03 \[ -\frac {\sqrt {3} a \arctan \left (\frac {\sqrt {3} {\left (2 \, x^{\frac {1}{3}} - \left (\frac {a}{b}\right )^{\frac {1}{3}}\right )}}{3 \, \left (\frac {a}{b}\right )^{\frac {1}{3}}}\right )}{b^{2} \left (\frac {a}{b}\right )^{\frac {1}{3}}} + \frac {3 \, x^{\frac {2}{3}}}{2 \, b} - \frac {a \log \left (x^{\frac {2}{3}} - x^{\frac {1}{3}} \left (\frac {a}{b}\right )^{\frac {1}{3}} + \left (\frac {a}{b}\right )^{\frac {2}{3}}\right )}{2 \, b^{2} \left (\frac {a}{b}\right )^{\frac {1}{3}}} + \frac {a \log \left (x^{\frac {1}{3}} + \left (\frac {a}{b}\right )^{\frac {1}{3}}\right )}{b^{2} \left (\frac {a}{b}\right )^{\frac {1}{3}}} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 0.15, size = 130, normalized size = 1.17 \[ \frac {3\,x^{2/3}}{2\,b}+\frac {a^{2/3}\,\ln \left (\frac {9\,a^{7/3}}{b^{4/3}}+\frac {9\,a^2\,x^{1/3}}{b}\right )}{b^{5/3}}+\frac {a^{2/3}\,\ln \left (\frac {9\,a^{7/3}\,{\left (-\frac {1}{2}+\frac {\sqrt {3}\,1{}\mathrm {i}}{2}\right )}^2}{b^{4/3}}+\frac {9\,a^2\,x^{1/3}}{b}\right )\,\left (-\frac {1}{2}+\frac {\sqrt {3}\,1{}\mathrm {i}}{2}\right )}{b^{5/3}}-\frac {a^{2/3}\,\ln \left (\frac {9\,a^{7/3}\,{\left (\frac {1}{2}+\frac {\sqrt {3}\,1{}\mathrm {i}}{2}\right )}^2}{b^{4/3}}+\frac {9\,a^2\,x^{1/3}}{b}\right )\,\left (\frac {1}{2}+\frac {\sqrt {3}\,1{}\mathrm {i}}{2}\right )}{b^{5/3}} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [A] time = 9.08, size = 228, normalized size = 2.05 \[ \begin {cases} \tilde {\infty } x^{\frac {2}{3}} & \text {for}\: a = 0 \wedge b = 0 \\\frac {3 x^{\frac {5}{3}}}{5 a} & \text {for}\: b = 0 \\\frac {3 x^{\frac {2}{3}}}{2 b} & \text {for}\: a = 0 \\\frac {\left (-1\right )^{\frac {2}{3}} a^{\frac {2}{3}} \log {\left (- \sqrt [3]{-1} \sqrt [3]{a} \sqrt [3]{\frac {1}{b}} + \sqrt [3]{x} \right )}}{b^{2} \sqrt [3]{\frac {1}{b}}} - \frac {\left (-1\right )^{\frac {2}{3}} a^{\frac {2}{3}} \log {\left (4 \left (-1\right )^{\frac {2}{3}} a^{\frac {2}{3}} \left (\frac {1}{b}\right )^{\frac {2}{3}} + 4 \sqrt [3]{-1} \sqrt [3]{a} \sqrt [3]{x} \sqrt [3]{\frac {1}{b}} + 4 x^{\frac {2}{3}} \right )}}{2 b^{2} \sqrt [3]{\frac {1}{b}}} + \frac {\left (-1\right )^{\frac {2}{3}} \sqrt {3} a^{\frac {2}{3}} \operatorname {atan}{\left (\frac {\sqrt {3}}{3} - \frac {2 \left (-1\right )^{\frac {2}{3}} \sqrt {3} \sqrt [3]{x}}{3 \sqrt [3]{a} \sqrt [3]{\frac {1}{b}}} \right )}}{b^{2} \sqrt [3]{\frac {1}{b}}} + \frac {3 x^{\frac {2}{3}}}{2 b} & \text {otherwise} \end {cases} \]
Verification of antiderivative is not currently implemented for this CAS.
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