Optimal. Leaf size=64 \[ -\frac {b}{a^2 \sqrt {a+b x^3}}-\frac {1}{3 a x^3 \sqrt {a+b x^3}}+\frac {b \tanh ^{-1}\left (\frac {\sqrt {a+b x^3}}{\sqrt {a}}\right )}{a^{5/2}} \]
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Rubi [A]
time = 0.03, antiderivative size = 64, normalized size of antiderivative = 1.00, number of steps
used = 5, number of rules used = 5, integrand size = 15, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.333, Rules used = {272, 44, 53, 65,
214} \begin {gather*} \frac {b \tanh ^{-1}\left (\frac {\sqrt {a+b x^3}}{\sqrt {a}}\right )}{a^{5/2}}-\frac {b}{a^2 \sqrt {a+b x^3}}-\frac {1}{3 a x^3 \sqrt {a+b x^3}} \end {gather*}
Antiderivative was successfully verified.
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Rule 44
Rule 53
Rule 65
Rule 214
Rule 272
Rubi steps
\begin {align*} \int \frac {1}{x^4 \left (a+b x^3\right )^{3/2}} \, dx &=\frac {1}{3} \text {Subst}\left (\int \frac {1}{x^2 (a+b x)^{3/2}} \, dx,x,x^3\right )\\ &=\frac {2}{3 a x^3 \sqrt {a+b x^3}}+\frac {\text {Subst}\left (\int \frac {1}{x^2 \sqrt {a+b x}} \, dx,x,x^3\right )}{a}\\ &=\frac {2}{3 a x^3 \sqrt {a+b x^3}}-\frac {\sqrt {a+b x^3}}{a^2 x^3}-\frac {b \text {Subst}\left (\int \frac {1}{x \sqrt {a+b x}} \, dx,x,x^3\right )}{2 a^2}\\ &=\frac {2}{3 a x^3 \sqrt {a+b x^3}}-\frac {\sqrt {a+b x^3}}{a^2 x^3}-\frac {\text {Subst}\left (\int \frac {1}{-\frac {a}{b}+\frac {x^2}{b}} \, dx,x,\sqrt {a+b x^3}\right )}{a^2}\\ &=\frac {2}{3 a x^3 \sqrt {a+b x^3}}-\frac {\sqrt {a+b x^3}}{a^2 x^3}+\frac {b \tanh ^{-1}\left (\frac {\sqrt {a+b x^3}}{\sqrt {a}}\right )}{a^{5/2}}\\ \end {align*}
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Mathematica [A]
time = 0.07, size = 57, normalized size = 0.89 \begin {gather*} \frac {-a-3 b x^3}{3 a^2 x^3 \sqrt {a+b x^3}}+\frac {b \tanh ^{-1}\left (\frac {\sqrt {a+b x^3}}{\sqrt {a}}\right )}{a^{5/2}} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.17, size = 57, normalized size = 0.89
method | result | size |
default | \(-\frac {2 b}{3 a^{2} \sqrt {\left (x^{3}+\frac {a}{b}\right ) b}}-\frac {\sqrt {b \,x^{3}+a}}{3 a^{2} x^{3}}+\frac {b \arctanh \left (\frac {\sqrt {b \,x^{3}+a}}{\sqrt {a}}\right )}{a^{\frac {5}{2}}}\) | \(57\) |
elliptic | \(-\frac {2 b}{3 a^{2} \sqrt {\left (x^{3}+\frac {a}{b}\right ) b}}-\frac {\sqrt {b \,x^{3}+a}}{3 a^{2} x^{3}}+\frac {b \arctanh \left (\frac {\sqrt {b \,x^{3}+a}}{\sqrt {a}}\right )}{a^{\frac {5}{2}}}\) | \(57\) |
risch | \(-\frac {\sqrt {b \,x^{3}+a}}{3 a^{2} x^{3}}-\frac {b \left (-\frac {2}{3 \sqrt {b \,x^{3}+a}}+3 a \left (\frac {2}{3 a \sqrt {\left (x^{3}+\frac {a}{b}\right ) b}}-\frac {2 \arctanh \left (\frac {\sqrt {b \,x^{3}+a}}{\sqrt {a}}\right )}{3 a^{\frac {3}{2}}}\right )\right )}{2 a^{2}}\) | \(78\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.51, size = 86, normalized size = 1.34 \begin {gather*} -\frac {3 \, {\left (b x^{3} + a\right )} b - 2 \, a b}{3 \, {\left ({\left (b x^{3} + a\right )}^{\frac {3}{2}} a^{2} - \sqrt {b x^{3} + a} a^{3}\right )}} - \frac {b \log \left (\frac {\sqrt {b x^{3} + a} - \sqrt {a}}{\sqrt {b x^{3} + a} + \sqrt {a}}\right )}{2 \, a^{\frac {5}{2}}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.37, size = 173, normalized size = 2.70 \begin {gather*} \left [\frac {3 \, {\left (b^{2} x^{6} + a b x^{3}\right )} \sqrt {a} \log \left (\frac {b x^{3} + 2 \, \sqrt {b x^{3} + a} \sqrt {a} + 2 \, a}{x^{3}}\right ) - 2 \, {\left (3 \, a b x^{3} + a^{2}\right )} \sqrt {b x^{3} + a}}{6 \, {\left (a^{3} b x^{6} + a^{4} x^{3}\right )}}, -\frac {3 \, {\left (b^{2} x^{6} + a b x^{3}\right )} \sqrt {-a} \arctan \left (\frac {\sqrt {b x^{3} + a} \sqrt {-a}}{a}\right ) + {\left (3 \, a b x^{3} + a^{2}\right )} \sqrt {b x^{3} + a}}{3 \, {\left (a^{3} b x^{6} + a^{4} x^{3}\right )}}\right ] \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 1.84, size = 75, normalized size = 1.17 \begin {gather*} - \frac {1}{3 a \sqrt {b} x^{\frac {9}{2}} \sqrt {\frac {a}{b x^{3}} + 1}} - \frac {\sqrt {b}}{a^{2} x^{\frac {3}{2}} \sqrt {\frac {a}{b x^{3}} + 1}} + \frac {b \operatorname {asinh}{\left (\frac {\sqrt {a}}{\sqrt {b} x^{\frac {3}{2}}} \right )}}{a^{\frac {5}{2}}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 1.11, size = 72, normalized size = 1.12 \begin {gather*} -\frac {b \arctan \left (\frac {\sqrt {b x^{3} + a}}{\sqrt {-a}}\right )}{\sqrt {-a} a^{2}} - \frac {3 \, {\left (b x^{3} + a\right )} b - 2 \, a b}{3 \, {\left ({\left (b x^{3} + a\right )}^{\frac {3}{2}} - \sqrt {b x^{3} + a} a\right )} a^{2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 1.34, size = 74, normalized size = 1.16 \begin {gather*} \frac {b\,\ln \left (\frac {\left (\sqrt {b\,x^3+a}-\sqrt {a}\right )\,{\left (\sqrt {b\,x^3+a}+\sqrt {a}\right )}^3}{x^6}\right )}{2\,a^{5/2}}-\frac {2\,b}{3\,a^2\,\sqrt {b\,x^3+a}}-\frac {\sqrt {b\,x^3+a}}{3\,a^2\,x^3} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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