Optimal. Leaf size=123 \[ \frac {3 a^{4/3} \log \left (\sqrt [3]{a}+\sqrt [3]{b} \sqrt [3]{x}\right )}{2 b^{7/3}}-\frac {a^{4/3} \log (a+b x)}{2 b^{7/3}}-\frac {\sqrt {3} a^{4/3} \tan ^{-1}\left (\frac {\sqrt [3]{a}-2 \sqrt [3]{b} \sqrt [3]{x}}{\sqrt {3} \sqrt [3]{a}}\right )}{b^{7/3}}-\frac {3 a \sqrt [3]{x}}{b^2}+\frac {3 x^{4/3}}{4 b} \]
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Rubi [A] time = 0.06, antiderivative size = 123, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 5, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.385, Rules used = {50, 58, 617, 204, 31} \[ \frac {3 a^{4/3} \log \left (\sqrt [3]{a}+\sqrt [3]{b} \sqrt [3]{x}\right )}{2 b^{7/3}}-\frac {a^{4/3} \log (a+b x)}{2 b^{7/3}}-\frac {\sqrt {3} a^{4/3} \tan ^{-1}\left (\frac {\sqrt [3]{a}-2 \sqrt [3]{b} \sqrt [3]{x}}{\sqrt {3} \sqrt [3]{a}}\right )}{b^{7/3}}-\frac {3 a \sqrt [3]{x}}{b^2}+\frac {3 x^{4/3}}{4 b} \]
Antiderivative was successfully verified.
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Rule 31
Rule 50
Rule 58
Rule 204
Rule 617
Rubi steps
\begin {align*} \int \frac {x^{4/3}}{a+b x} \, dx &=\frac {3 x^{4/3}}{4 b}-\frac {a \int \frac {\sqrt [3]{x}}{a+b x} \, dx}{b}\\ &=-\frac {3 a \sqrt [3]{x}}{b^2}+\frac {3 x^{4/3}}{4 b}+\frac {a^2 \int \frac {1}{x^{2/3} (a+b x)} \, dx}{b^2}\\ &=-\frac {3 a \sqrt [3]{x}}{b^2}+\frac {3 x^{4/3}}{4 b}-\frac {a^{4/3} \log (a+b x)}{2 b^{7/3}}+\frac {\left (3 a^{5/3}\right ) \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^{8/3}}+\frac {\left (3 a^{4/3}\right ) \operatorname {Subst}\left (\int \frac {1}{\frac {\sqrt [3]{a}}{\sqrt [3]{b}}+x} \, dx,x,\sqrt [3]{x}\right )}{2 b^{7/3}}\\ &=-\frac {3 a \sqrt [3]{x}}{b^2}+\frac {3 x^{4/3}}{4 b}+\frac {3 a^{4/3} \log \left (\sqrt [3]{a}+\sqrt [3]{b} \sqrt [3]{x}\right )}{2 b^{7/3}}-\frac {a^{4/3} \log (a+b x)}{2 b^{7/3}}+\frac {\left (3 a^{4/3}\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^{7/3}}\\ &=-\frac {3 a \sqrt [3]{x}}{b^2}+\frac {3 x^{4/3}}{4 b}-\frac {\sqrt {3} a^{4/3} \tan ^{-1}\left (\frac {1-\frac {2 \sqrt [3]{b} \sqrt [3]{x}}{\sqrt [3]{a}}}{\sqrt {3}}\right )}{b^{7/3}}+\frac {3 a^{4/3} \log \left (\sqrt [3]{a}+\sqrt [3]{b} \sqrt [3]{x}\right )}{2 b^{7/3}}-\frac {a^{4/3} \log (a+b x)}{2 b^{7/3}}\\ \end {align*}
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Mathematica [A] time = 0.06, size = 140, normalized size = 1.14 \[ \frac {-2 a^{4/3} \log \left (a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} \sqrt [3]{x}+b^{2/3} x^{2/3}\right )+4 a^{4/3} \log \left (\sqrt [3]{a}+\sqrt [3]{b} \sqrt [3]{x}\right )-4 \sqrt {3} a^{4/3} \tan ^{-1}\left (\frac {1-\frac {2 \sqrt [3]{b} \sqrt [3]{x}}{\sqrt [3]{a}}}{\sqrt {3}}\right )-12 a \sqrt [3]{b} \sqrt [3]{x}+3 b^{4/3} x^{4/3}}{4 b^{7/3}} \]
Antiderivative was successfully verified.
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fricas [A] time = 0.46, size = 116, normalized size = 0.94 \[ \frac {4 \, \sqrt {3} a \left (\frac {a}{b}\right )^{\frac {1}{3}} \arctan \left (\frac {2 \, \sqrt {3} b x^{\frac {1}{3}} \left (\frac {a}{b}\right )^{\frac {2}{3}} - \sqrt {3} a}{3 \, a}\right ) - 2 \, a \left (\frac {a}{b}\right )^{\frac {1}{3}} \log \left (x^{\frac {2}{3}} - x^{\frac {1}{3}} \left (\frac {a}{b}\right )^{\frac {1}{3}} + \left (\frac {a}{b}\right )^{\frac {2}{3}}\right ) + 4 \, a \left (\frac {a}{b}\right )^{\frac {1}{3}} \log \left (x^{\frac {1}{3}} + \left (\frac {a}{b}\right )^{\frac {1}{3}}\right ) + 3 \, {\left (b x - 4 \, a\right )} x^{\frac {1}{3}}}{4 \, b^{2}} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 1.21, size = 136, normalized size = 1.11 \[ -\frac {a \left (-\frac {a}{b}\right )^{\frac {1}{3}} \log \left ({\left | x^{\frac {1}{3}} - \left (-\frac {a}{b}\right )^{\frac {1}{3}} \right |}\right )}{b^{2}} + \frac {\sqrt {3} \left (-a b^{2}\right )^{\frac {1}{3}} a \arctan \left (\frac {\sqrt {3} {\left (2 \, x^{\frac {1}{3}} + \left (-\frac {a}{b}\right )^{\frac {1}{3}}\right )}}{3 \, \left (-\frac {a}{b}\right )^{\frac {1}{3}}}\right )}{b^{3}} + \frac {\left (-a b^{2}\right )^{\frac {1}{3}} a \log \left (x^{\frac {2}{3}} + x^{\frac {1}{3}} \left (-\frac {a}{b}\right )^{\frac {1}{3}} + \left (-\frac {a}{b}\right )^{\frac {2}{3}}\right )}{2 \, b^{3}} + \frac {3 \, {\left (b^{3} x^{\frac {4}{3}} - 4 \, a b^{2} x^{\frac {1}{3}}\right )}}{4 \, b^{4}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.01, size = 121, normalized size = 0.98 \[ \frac {3 x^{\frac {4}{3}}}{4 b}+\frac {\sqrt {3}\, a^{2} \arctan \left (\frac {\sqrt {3}\, \left (\frac {2 x^{\frac {1}{3}}}{\left (\frac {a}{b}\right )^{\frac {1}{3}}}-1\right )}{3}\right )}{\left (\frac {a}{b}\right )^{\frac {2}{3}} b^{3}}+\frac {a^{2} \ln \left (x^{\frac {1}{3}}+\left (\frac {a}{b}\right )^{\frac {1}{3}}\right )}{\left (\frac {a}{b}\right )^{\frac {2}{3}} b^{3}}-\frac {a^{2} \ln \left (x^{\frac {2}{3}}-\left (\frac {a}{b}\right )^{\frac {1}{3}} x^{\frac {1}{3}}+\left (\frac {a}{b}\right )^{\frac {2}{3}}\right )}{2 \left (\frac {a}{b}\right )^{\frac {2}{3}} b^{3}}-\frac {3 a \,x^{\frac {1}{3}}}{b^{2}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 3.05, size = 128, normalized size = 1.04 \[ \frac {\sqrt {3} a^{2} \arctan \left (\frac {\sqrt {3} {\left (2 \, x^{\frac {1}{3}} - \left (\frac {a}{b}\right )^{\frac {1}{3}}\right )}}{3 \, \left (\frac {a}{b}\right )^{\frac {1}{3}}}\right )}{b^{3} \left (\frac {a}{b}\right )^{\frac {2}{3}}} - \frac {a^{2} \log \left (x^{\frac {2}{3}} - x^{\frac {1}{3}} \left (\frac {a}{b}\right )^{\frac {1}{3}} + \left (\frac {a}{b}\right )^{\frac {2}{3}}\right )}{2 \, b^{3} \left (\frac {a}{b}\right )^{\frac {2}{3}}} + \frac {a^{2} \log \left (x^{\frac {1}{3}} + \left (\frac {a}{b}\right )^{\frac {1}{3}}\right )}{b^{3} \left (\frac {a}{b}\right )^{\frac {2}{3}}} + \frac {3 \, {\left (b x^{\frac {4}{3}} - 4 \, a x^{\frac {1}{3}}\right )}}{4 \, b^{2}} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 0.07, size = 126, normalized size = 1.02 \[ \frac {3\,x^{4/3}}{4\,b}-\frac {3\,a\,x^{1/3}}{b^2}+\frac {a^{4/3}\,\ln \left (\frac {9\,a^{7/3}}{b^{1/3}}+9\,a^2\,x^{1/3}\right )}{b^{7/3}}+\frac {a^{4/3}\,\ln \left (9\,a^2\,x^{1/3}+\frac {9\,a^{7/3}\,\left (-\frac {1}{2}+\frac {\sqrt {3}\,1{}\mathrm {i}}{2}\right )}{b^{1/3}}\right )\,\left (-\frac {1}{2}+\frac {\sqrt {3}\,1{}\mathrm {i}}{2}\right )}{b^{7/3}}-\frac {a^{4/3}\,\ln \left (9\,a^2\,x^{1/3}-\frac {9\,a^{7/3}\,\left (\frac {1}{2}+\frac {\sqrt {3}\,1{}\mathrm {i}}{2}\right )}{b^{1/3}}\right )\,\left (\frac {1}{2}+\frac {\sqrt {3}\,1{}\mathrm {i}}{2}\right )}{b^{7/3}} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [A] time = 25.86, size = 240, normalized size = 1.95 \[ \begin {cases} \tilde {\infty } x^{\frac {4}{3}} & \text {for}\: a = 0 \wedge b = 0 \\\frac {3 x^{\frac {7}{3}}}{7 a} & \text {for}\: b = 0 \\\frac {3 x^{\frac {4}{3}}}{4 b} & \text {for}\: a = 0 \\- \frac {\sqrt [3]{-1} a^{\frac {4}{3}} \sqrt [3]{\frac {1}{b}} \log {\left (- \sqrt [3]{-1} \sqrt [3]{a} \sqrt [3]{\frac {1}{b}} + \sqrt [3]{x} \right )}}{b^{2}} + \frac {\sqrt [3]{-1} a^{\frac {4}{3}} \sqrt [3]{\frac {1}{b}} \log {\left (4 \left (-1\right )^{\frac {2}{3}} a^{\frac {2}{3}} \left (\frac {1}{b}\right )^{\frac {2}{3}} + 4 \sqrt [3]{-1} \sqrt [3]{a} \sqrt [3]{x} \sqrt [3]{\frac {1}{b}} + 4 x^{\frac {2}{3}} \right )}}{2 b^{2}} + \frac {\sqrt [3]{-1} \sqrt {3} a^{\frac {4}{3}} \sqrt [3]{\frac {1}{b}} \operatorname {atan}{\left (\frac {\sqrt {3}}{3} - \frac {2 \left (-1\right )^{\frac {2}{3}} \sqrt {3} \sqrt [3]{x}}{3 \sqrt [3]{a} \sqrt [3]{\frac {1}{b}}} \right )}}{b^{2}} - \frac {3 a \sqrt [3]{x}}{b^{2}} + \frac {3 x^{\frac {4}{3}}}{4 b} & \text {otherwise} \end {cases} \]
Verification of antiderivative is not currently implemented for this CAS.
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