Optimal. Leaf size=106 \[ \frac {3 \sqrt [3]{a+b x^n}}{n}-\frac {\sqrt {3} \sqrt [3]{a} \tan ^{-1}\left (\frac {\sqrt [3]{a}+2 \sqrt [3]{a+b x^n}}{\sqrt {3} \sqrt [3]{a}}\right )}{n}-\frac {1}{2} \sqrt [3]{a} \log (x)+\frac {3 \sqrt [3]{a} \log \left (\sqrt [3]{a}-\sqrt [3]{a+b x^n}\right )}{2 n} \]
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Rubi [A]
time = 0.05, antiderivative size = 106, normalized size of antiderivative = 1.00, number of steps
used = 6, number of rules used = 6, integrand size = 15, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.400, Rules used = {272, 52, 59,
631, 210, 31} \begin {gather*} -\frac {\sqrt {3} \sqrt [3]{a} \text {ArcTan}\left (\frac {2 \sqrt [3]{a+b x^n}+\sqrt [3]{a}}{\sqrt {3} \sqrt [3]{a}}\right )}{n}+\frac {3 \sqrt [3]{a+b x^n}}{n}+\frac {3 \sqrt [3]{a} \log \left (\sqrt [3]{a}-\sqrt [3]{a+b x^n}\right )}{2 n}-\frac {1}{2} \sqrt [3]{a} \log (x) \end {gather*}
Antiderivative was successfully verified.
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Rule 31
Rule 52
Rule 59
Rule 210
Rule 272
Rule 631
Rubi steps
\begin {align*} \int \frac {\sqrt [3]{a+b x^n}}{x} \, dx &=\frac {\text {Subst}\left (\int \frac {\sqrt [3]{a+b x}}{x} \, dx,x,x^n\right )}{n}\\ &=\frac {3 \sqrt [3]{a+b x^n}}{n}+\frac {a \text {Subst}\left (\int \frac {1}{x (a+b x)^{2/3}} \, dx,x,x^n\right )}{n}\\ &=\frac {3 \sqrt [3]{a+b x^n}}{n}-\frac {1}{2} \sqrt [3]{a} \log (x)-\frac {\left (3 \sqrt [3]{a}\right ) \text {Subst}\left (\int \frac {1}{\sqrt [3]{a}-x} \, dx,x,\sqrt [3]{a+b x^n}\right )}{2 n}-\frac {\left (3 a^{2/3}\right ) \text {Subst}\left (\int \frac {1}{a^{2/3}+\sqrt [3]{a} x+x^2} \, dx,x,\sqrt [3]{a+b x^n}\right )}{2 n}\\ &=\frac {3 \sqrt [3]{a+b x^n}}{n}-\frac {1}{2} \sqrt [3]{a} \log (x)+\frac {3 \sqrt [3]{a} \log \left (\sqrt [3]{a}-\sqrt [3]{a+b x^n}\right )}{2 n}+\frac {\left (3 \sqrt [3]{a}\right ) \text {Subst}\left (\int \frac {1}{-3-x^2} \, dx,x,1+\frac {2 \sqrt [3]{a+b x^n}}{\sqrt [3]{a}}\right )}{n}\\ &=\frac {3 \sqrt [3]{a+b x^n}}{n}-\frac {\sqrt {3} \sqrt [3]{a} \tan ^{-1}\left (\frac {1+\frac {2 \sqrt [3]{a+b x^n}}{\sqrt [3]{a}}}{\sqrt {3}}\right )}{n}-\frac {1}{2} \sqrt [3]{a} \log (x)+\frac {3 \sqrt [3]{a} \log \left (\sqrt [3]{a}-\sqrt [3]{a+b x^n}\right )}{2 n}\\ \end {align*}
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Mathematica [A]
time = 0.10, size = 129, normalized size = 1.22 \begin {gather*} \frac {6 \sqrt [3]{a+b x^n}-2 \sqrt {3} \sqrt [3]{a} \tan ^{-1}\left (\frac {1+\frac {2 \sqrt [3]{a+b x^n}}{\sqrt [3]{a}}}{\sqrt {3}}\right )+2 \sqrt [3]{a} \log \left (\sqrt [3]{a}-\sqrt [3]{a+b x^n}\right )-\sqrt [3]{a} \log \left (a^{2/3}+\sqrt [3]{a} \sqrt [3]{a+b x^n}+\left (a+b x^n\right )^{2/3}\right )}{2 n} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.33, size = 104, normalized size = 0.98
method | result | size |
derivativedivides | \(\frac {3 \left (a +b \,x^{n}\right )^{\frac {1}{3}}+3 \left (\frac {\ln \left (\left (a +b \,x^{n}\right )^{\frac {1}{3}}-a^{\frac {1}{3}}\right )}{3 a^{\frac {2}{3}}}-\frac {\ln \left (\left (a +b \,x^{n}\right )^{\frac {2}{3}}+a^{\frac {1}{3}} \left (a +b \,x^{n}\right )^{\frac {1}{3}}+a^{\frac {2}{3}}\right )}{6 a^{\frac {2}{3}}}-\frac {\sqrt {3}\, \arctan \left (\frac {\sqrt {3}\, \left (\frac {2 \left (a +b \,x^{n}\right )^{\frac {1}{3}}}{a^{\frac {1}{3}}}+1\right )}{3}\right )}{3 a^{\frac {2}{3}}}\right ) a}{n}\) | \(104\) |
default | \(\frac {3 \left (a +b \,x^{n}\right )^{\frac {1}{3}}+3 \left (\frac {\ln \left (\left (a +b \,x^{n}\right )^{\frac {1}{3}}-a^{\frac {1}{3}}\right )}{3 a^{\frac {2}{3}}}-\frac {\ln \left (\left (a +b \,x^{n}\right )^{\frac {2}{3}}+a^{\frac {1}{3}} \left (a +b \,x^{n}\right )^{\frac {1}{3}}+a^{\frac {2}{3}}\right )}{6 a^{\frac {2}{3}}}-\frac {\sqrt {3}\, \arctan \left (\frac {\sqrt {3}\, \left (\frac {2 \left (a +b \,x^{n}\right )^{\frac {1}{3}}}{a^{\frac {1}{3}}}+1\right )}{3}\right )}{3 a^{\frac {2}{3}}}\right ) a}{n}\) | \(104\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.50, size = 108, normalized size = 1.02 \begin {gather*} -\frac {\sqrt {3} a^{\frac {1}{3}} \arctan \left (\frac {\sqrt {3} {\left (2 \, {\left (b x^{n} + a\right )}^{\frac {1}{3}} + a^{\frac {1}{3}}\right )}}{3 \, a^{\frac {1}{3}}}\right )}{n} - \frac {a^{\frac {1}{3}} \log \left ({\left (b x^{n} + a\right )}^{\frac {2}{3}} + {\left (b x^{n} + a\right )}^{\frac {1}{3}} a^{\frac {1}{3}} + a^{\frac {2}{3}}\right )}{2 \, n} + \frac {a^{\frac {1}{3}} \log \left ({\left (b x^{n} + a\right )}^{\frac {1}{3}} - a^{\frac {1}{3}}\right )}{n} + \frac {3 \, {\left (b x^{n} + a\right )}^{\frac {1}{3}}}{n} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.55, size = 106, normalized size = 1.00 \begin {gather*} -\frac {2 \, \sqrt {3} a^{\frac {1}{3}} \arctan \left (\frac {2 \, \sqrt {3} {\left (b x^{n} + a\right )}^{\frac {1}{3}} a^{\frac {2}{3}} + \sqrt {3} a}{3 \, a}\right ) + a^{\frac {1}{3}} \log \left ({\left (b x^{n} + a\right )}^{\frac {2}{3}} + {\left (b x^{n} + a\right )}^{\frac {1}{3}} a^{\frac {1}{3}} + a^{\frac {2}{3}}\right ) - 2 \, a^{\frac {1}{3}} \log \left ({\left (b x^{n} + a\right )}^{\frac {1}{3}} - a^{\frac {1}{3}}\right ) - 6 \, {\left (b x^{n} + a\right )}^{\frac {1}{3}}}{2 \, n} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [C] Result contains complex when optimal does not.
time = 0.62, size = 46, normalized size = 0.43 \begin {gather*} - \frac {\sqrt [3]{b} x^{\frac {n}{3}} \Gamma \left (- \frac {1}{3}\right ) {{}_{2}F_{1}\left (\begin {matrix} - \frac {1}{3}, - \frac {1}{3} \\ \frac {2}{3} \end {matrix}\middle | {\frac {a x^{- n} e^{i \pi }}{b}} \right )}}{n \Gamma \left (\frac {2}{3}\right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [F]
time = 0.00, size = -1, normalized size = -0.01 \begin {gather*} \int \frac {{\left (a+b\,x^n\right )}^{1/3}}{x} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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