Optimal. Leaf size=95 \[ \frac {5 b^2}{4 a^3 \sqrt {a+b x^3}}-\frac {1}{6 a x^6 \sqrt {a+b x^3}}+\frac {5 b}{12 a^2 x^3 \sqrt {a+b x^3}}-\frac {5 b^2 \tanh ^{-1}\left (\frac {\sqrt {a+b x^3}}{\sqrt {a}}\right )}{4 a^{7/2}} \]
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Rubi [A]
time = 0.04, antiderivative size = 95, normalized size of antiderivative = 1.00, number of steps
used = 6, 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 {5 b^2 \tanh ^{-1}\left (\frac {\sqrt {a+b x^3}}{\sqrt {a}}\right )}{4 a^{7/2}}+\frac {5 b^2}{4 a^3 \sqrt {a+b x^3}}+\frac {5 b}{12 a^2 x^3 \sqrt {a+b x^3}}-\frac {1}{6 a x^6 \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^7 \left (a+b x^3\right )^{3/2}} \, dx &=\frac {1}{3} \text {Subst}\left (\int \frac {1}{x^3 (a+b x)^{3/2}} \, dx,x,x^3\right )\\ &=\frac {2}{3 a x^6 \sqrt {a+b x^3}}+\frac {5 \text {Subst}\left (\int \frac {1}{x^3 \sqrt {a+b x}} \, dx,x,x^3\right )}{3 a}\\ &=\frac {2}{3 a x^6 \sqrt {a+b x^3}}-\frac {5 \sqrt {a+b x^3}}{6 a^2 x^6}-\frac {(5 b) \text {Subst}\left (\int \frac {1}{x^2 \sqrt {a+b x}} \, dx,x,x^3\right )}{4 a^2}\\ &=\frac {2}{3 a x^6 \sqrt {a+b x^3}}-\frac {5 \sqrt {a+b x^3}}{6 a^2 x^6}+\frac {5 b \sqrt {a+b x^3}}{4 a^3 x^3}+\frac {\left (5 b^2\right ) \text {Subst}\left (\int \frac {1}{x \sqrt {a+b x}} \, dx,x,x^3\right )}{8 a^3}\\ &=\frac {2}{3 a x^6 \sqrt {a+b x^3}}-\frac {5 \sqrt {a+b x^3}}{6 a^2 x^6}+\frac {5 b \sqrt {a+b x^3}}{4 a^3 x^3}+\frac {(5 b) \text {Subst}\left (\int \frac {1}{-\frac {a}{b}+\frac {x^2}{b}} \, dx,x,\sqrt {a+b x^3}\right )}{4 a^3}\\ &=\frac {2}{3 a x^6 \sqrt {a+b x^3}}-\frac {5 \sqrt {a+b x^3}}{6 a^2 x^6}+\frac {5 b \sqrt {a+b x^3}}{4 a^3 x^3}-\frac {5 b^2 \tanh ^{-1}\left (\frac {\sqrt {a+b x^3}}{\sqrt {a}}\right )}{4 a^{7/2}}\\ \end {align*}
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Mathematica [A]
time = 0.09, size = 73, normalized size = 0.77 \begin {gather*} \frac {-2 a^2+5 a b x^3+15 b^2 x^6}{12 a^3 x^6 \sqrt {a+b x^3}}-\frac {5 b^2 \tanh ^{-1}\left (\frac {\sqrt {a+b x^3}}{\sqrt {a}}\right )}{4 a^{7/2}} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.15, size = 80, normalized size = 0.84
method | result | size |
default | \(-\frac {\sqrt {b \,x^{3}+a}}{6 a^{2} x^{6}}+\frac {7 b \sqrt {b \,x^{3}+a}}{12 a^{3} x^{3}}+\frac {2 b^{2}}{3 a^{3} \sqrt {\left (x^{3}+\frac {a}{b}\right ) b}}-\frac {5 b^{2} \arctanh \left (\frac {\sqrt {b \,x^{3}+a}}{\sqrt {a}}\right )}{4 a^{\frac {7}{2}}}\) | \(80\) |
elliptic | \(-\frac {\sqrt {b \,x^{3}+a}}{6 a^{2} x^{6}}+\frac {7 b \sqrt {b \,x^{3}+a}}{12 a^{3} x^{3}}+\frac {2 b^{2}}{3 a^{3} \sqrt {\left (x^{3}+\frac {a}{b}\right ) b}}-\frac {5 b^{2} \arctanh \left (\frac {\sqrt {b \,x^{3}+a}}{\sqrt {a}}\right )}{4 a^{\frac {7}{2}}}\) | \(80\) |
risch | \(-\frac {\sqrt {b \,x^{3}+a}\, \left (-7 b \,x^{3}+2 a \right )}{12 a^{3} x^{6}}+\frac {b^{2} \left (-\frac {14}{3 \sqrt {b \,x^{3}+a}}+15 a \left (\frac {2}{3 a \sqrt {\left (x^{3}+\frac {a}{b}\right ) b}}-\frac {2 \arctanh \left (\frac {\sqrt {b \,x^{3}+a}}{\sqrt {a}}\right )}{3 a^{\frac {3}{2}}}\right )\right )}{8 a^{3}}\) | \(90\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.53, size = 122, normalized size = 1.28 \begin {gather*} \frac {15 \, {\left (b x^{3} + a\right )}^{2} b^{2} - 25 \, {\left (b x^{3} + a\right )} a b^{2} + 8 \, a^{2} b^{2}}{12 \, {\left ({\left (b x^{3} + a\right )}^{\frac {5}{2}} a^{3} - 2 \, {\left (b x^{3} + a\right )}^{\frac {3}{2}} a^{4} + \sqrt {b x^{3} + a} a^{5}\right )}} + \frac {5 \, b^{2} \log \left (\frac {\sqrt {b x^{3} + a} - \sqrt {a}}{\sqrt {b x^{3} + a} + \sqrt {a}}\right )}{8 \, a^{\frac {7}{2}}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.37, size = 203, normalized size = 2.14 \begin {gather*} \left [\frac {15 \, {\left (b^{3} x^{9} + a b^{2} x^{6}\right )} \sqrt {a} \log \left (\frac {b x^{3} - 2 \, \sqrt {b x^{3} + a} \sqrt {a} + 2 \, a}{x^{3}}\right ) + 2 \, {\left (15 \, a b^{2} x^{6} + 5 \, a^{2} b x^{3} - 2 \, a^{3}\right )} \sqrt {b x^{3} + a}}{24 \, {\left (a^{4} b x^{9} + a^{5} x^{6}\right )}}, \frac {15 \, {\left (b^{3} x^{9} + a b^{2} x^{6}\right )} \sqrt {-a} \arctan \left (\frac {\sqrt {b x^{3} + a} \sqrt {-a}}{a}\right ) + {\left (15 \, a b^{2} x^{6} + 5 \, a^{2} b x^{3} - 2 \, a^{3}\right )} \sqrt {b x^{3} + a}}{12 \, {\left (a^{4} b x^{9} + a^{5} x^{6}\right )}}\right ] \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 4.09, size = 112, normalized size = 1.18 \begin {gather*} - \frac {1}{6 a \sqrt {b} x^{\frac {15}{2}} \sqrt {\frac {a}{b x^{3}} + 1}} + \frac {5 \sqrt {b}}{12 a^{2} x^{\frac {9}{2}} \sqrt {\frac {a}{b x^{3}} + 1}} + \frac {5 b^{\frac {3}{2}}}{4 a^{3} x^{\frac {3}{2}} \sqrt {\frac {a}{b x^{3}} + 1}} - \frac {5 b^{2} \operatorname {asinh}{\left (\frac {\sqrt {a}}{\sqrt {b} x^{\frac {3}{2}}} \right )}}{4 a^{\frac {7}{2}}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 1.22, size = 88, normalized size = 0.93 \begin {gather*} \frac {5 \, b^{2} \arctan \left (\frac {\sqrt {b x^{3} + a}}{\sqrt {-a}}\right )}{4 \, \sqrt {-a} a^{3}} + \frac {2 \, b^{2}}{3 \, \sqrt {b x^{3} + a} a^{3}} + \frac {7 \, {\left (b x^{3} + a\right )}^{\frac {3}{2}} b^{2} - 9 \, \sqrt {b x^{3} + a} a b^{2}}{12 \, a^{3} b^{2} x^{6}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 1.47, size = 96, normalized size = 1.01 \begin {gather*} \frac {2\,b^2}{3\,a^3\,\sqrt {b\,x^3+a}}-\frac {\sqrt {b\,x^3+a}}{6\,a^2\,x^6}+\frac {5\,b^2\,\ln \left (\frac {{\left (\sqrt {b\,x^3+a}-\sqrt {a}\right )}^3\,\left (\sqrt {b\,x^3+a}+\sqrt {a}\right )}{x^6}\right )}{8\,a^{7/2}}+\frac {7\,b\,\sqrt {b\,x^3+a}}{12\,a^3\,x^3} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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