Optimal. Leaf size=137 \[ -\frac {4 b \sqrt {a x+b x^3}}{7 x^2}-\frac {2 \left (a x+b x^3\right )^{3/2}}{7 x^5}+\frac {4 b^{7/4} \sqrt {x} \left (\sqrt {a}+\sqrt {b} x\right ) \sqrt {\frac {a+b x^2}{\left (\sqrt {a}+\sqrt {b} x\right )^2}} F\left (2 \tan ^{-1}\left (\frac {\sqrt [4]{b} \sqrt {x}}{\sqrt [4]{a}}\right )|\frac {1}{2}\right )}{7 \sqrt [4]{a} \sqrt {a x+b x^3}} \]
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Rubi [A]
time = 0.09, antiderivative size = 137, normalized size of antiderivative = 1.00, number of steps
used = 5, number of rules used = 4, integrand size = 17, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.235, Rules used = {2045, 2036,
335, 226} \begin {gather*} \frac {4 b^{7/4} \sqrt {x} \left (\sqrt {a}+\sqrt {b} x\right ) \sqrt {\frac {a+b x^2}{\left (\sqrt {a}+\sqrt {b} x\right )^2}} F\left (2 \text {ArcTan}\left (\frac {\sqrt [4]{b} \sqrt {x}}{\sqrt [4]{a}}\right )|\frac {1}{2}\right )}{7 \sqrt [4]{a} \sqrt {a x+b x^3}}-\frac {2 \left (a x+b x^3\right )^{3/2}}{7 x^5}-\frac {4 b \sqrt {a x+b x^3}}{7 x^2} \end {gather*}
Antiderivative was successfully verified.
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Rule 226
Rule 335
Rule 2036
Rule 2045
Rubi steps
\begin {align*} \int \frac {\left (a x+b x^3\right )^{3/2}}{x^6} \, dx &=-\frac {2 \left (a x+b x^3\right )^{3/2}}{7 x^5}+\frac {1}{7} (6 b) \int \frac {\sqrt {a x+b x^3}}{x^3} \, dx\\ &=-\frac {4 b \sqrt {a x+b x^3}}{7 x^2}-\frac {2 \left (a x+b x^3\right )^{3/2}}{7 x^5}+\frac {1}{7} \left (4 b^2\right ) \int \frac {1}{\sqrt {a x+b x^3}} \, dx\\ &=-\frac {4 b \sqrt {a x+b x^3}}{7 x^2}-\frac {2 \left (a x+b x^3\right )^{3/2}}{7 x^5}+\frac {\left (4 b^2 \sqrt {x} \sqrt {a+b x^2}\right ) \int \frac {1}{\sqrt {x} \sqrt {a+b x^2}} \, dx}{7 \sqrt {a x+b x^3}}\\ &=-\frac {4 b \sqrt {a x+b x^3}}{7 x^2}-\frac {2 \left (a x+b x^3\right )^{3/2}}{7 x^5}+\frac {\left (8 b^2 \sqrt {x} \sqrt {a+b x^2}\right ) \text {Subst}\left (\int \frac {1}{\sqrt {a+b x^4}} \, dx,x,\sqrt {x}\right )}{7 \sqrt {a x+b x^3}}\\ &=-\frac {4 b \sqrt {a x+b x^3}}{7 x^2}-\frac {2 \left (a x+b x^3\right )^{3/2}}{7 x^5}+\frac {4 b^{7/4} \sqrt {x} \left (\sqrt {a}+\sqrt {b} x\right ) \sqrt {\frac {a+b x^2}{\left (\sqrt {a}+\sqrt {b} x\right )^2}} F\left (2 \tan ^{-1}\left (\frac {\sqrt [4]{b} \sqrt {x}}{\sqrt [4]{a}}\right )|\frac {1}{2}\right )}{7 \sqrt [4]{a} \sqrt {a x+b x^3}}\\ \end {align*}
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Mathematica [C] Result contains higher order function than in optimal. Order 5 vs. order 4 in
optimal.
time = 10.01, size = 54, normalized size = 0.39 \begin {gather*} -\frac {2 a \sqrt {x \left (a+b x^2\right )} \, _2F_1\left (-\frac {7}{4},-\frac {3}{2};-\frac {3}{4};-\frac {b x^2}{a}\right )}{7 x^4 \sqrt {1+\frac {b x^2}{a}}} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.36, size = 142, normalized size = 1.04
method | result | size |
risch | \(-\frac {2 \left (b \,x^{2}+a \right ) \left (3 b \,x^{2}+a \right )}{7 x^{3} \sqrt {x \left (b \,x^{2}+a \right )}}+\frac {4 b \sqrt {-a b}\, \sqrt {\frac {\left (x +\frac {\sqrt {-a b}}{b}\right ) b}{\sqrt {-a b}}}\, \sqrt {-\frac {2 \left (x -\frac {\sqrt {-a b}}{b}\right ) b}{\sqrt {-a b}}}\, \sqrt {-\frac {x b}{\sqrt {-a b}}}\, \EllipticF \left (\sqrt {\frac {\left (x +\frac {\sqrt {-a b}}{b}\right ) b}{\sqrt {-a b}}}, \frac {\sqrt {2}}{2}\right )}{7 \sqrt {b \,x^{3}+a x}}\) | \(139\) |
default | \(-\frac {2 a \sqrt {b \,x^{3}+a x}}{7 x^{4}}-\frac {6 b \sqrt {b \,x^{3}+a x}}{7 x^{2}}+\frac {4 b \sqrt {-a b}\, \sqrt {\frac {\left (x +\frac {\sqrt {-a b}}{b}\right ) b}{\sqrt {-a b}}}\, \sqrt {-\frac {2 \left (x -\frac {\sqrt {-a b}}{b}\right ) b}{\sqrt {-a b}}}\, \sqrt {-\frac {x b}{\sqrt {-a b}}}\, \EllipticF \left (\sqrt {\frac {\left (x +\frac {\sqrt {-a b}}{b}\right ) b}{\sqrt {-a b}}}, \frac {\sqrt {2}}{2}\right )}{7 \sqrt {b \,x^{3}+a x}}\) | \(142\) |
elliptic | \(-\frac {2 a \sqrt {b \,x^{3}+a x}}{7 x^{4}}-\frac {6 b \sqrt {b \,x^{3}+a x}}{7 x^{2}}+\frac {4 b \sqrt {-a b}\, \sqrt {\frac {\left (x +\frac {\sqrt {-a b}}{b}\right ) b}{\sqrt {-a b}}}\, \sqrt {-\frac {2 \left (x -\frac {\sqrt {-a b}}{b}\right ) b}{\sqrt {-a b}}}\, \sqrt {-\frac {x b}{\sqrt {-a b}}}\, \EllipticF \left (\sqrt {\frac {\left (x +\frac {\sqrt {-a b}}{b}\right ) b}{\sqrt {-a b}}}, \frac {\sqrt {2}}{2}\right )}{7 \sqrt {b \,x^{3}+a x}}\) | \(142\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Failed to integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [C] Result contains higher order function than in optimal. Order 9 vs. order
4.
time = 0.43, size = 44, normalized size = 0.32 \begin {gather*} \frac {2 \, {\left (4 \, b^{\frac {3}{2}} x^{4} {\rm weierstrassPInverse}\left (-\frac {4 \, a}{b}, 0, x\right ) - \sqrt {b x^{3} + a x} {\left (3 \, b x^{2} + a\right )}\right )}}{7 \, x^{4}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {\left (x \left (a + b x^{2}\right )\right )^{\frac {3}{2}}}{x^{6}}\, dx \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 (b\,x^3+a\,x\right )}^{3/2}}{x^6} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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