Optimal. Leaf size=48 \[ -\frac {2 \sqrt {a x+b x^4}}{9 a x^5}+\frac {4 b \sqrt {a x+b x^4}}{9 a^2 x^2} \]
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Rubi [A]
time = 0.05, antiderivative size = 48, normalized size of antiderivative = 1.00, number of steps
used = 2, number of rules used = 2, integrand size = 17, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.118, Rules used = {2041, 2039}
\begin {gather*} \frac {4 b \sqrt {a x+b x^4}}{9 a^2 x^2}-\frac {2 \sqrt {a x+b x^4}}{9 a x^5} \end {gather*}
Antiderivative was successfully verified.
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Rule 2039
Rule 2041
Rubi steps
\begin {align*} \int \frac {1}{x^5 \sqrt {a x+b x^4}} \, dx &=-\frac {2 \sqrt {a x+b x^4}}{9 a x^5}-\frac {(2 b) \int \frac {1}{x^2 \sqrt {a x+b x^4}} \, dx}{3 a}\\ &=-\frac {2 \sqrt {a x+b x^4}}{9 a x^5}+\frac {4 b \sqrt {a x+b x^4}}{9 a^2 x^2}\\ \end {align*}
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Mathematica [A]
time = 0.18, size = 31, normalized size = 0.65 \begin {gather*} -\frac {2 \left (a-2 b x^3\right ) \sqrt {x \left (a+b x^3\right )}}{9 a^2 x^5} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.36, size = 41, normalized size = 0.85
method | result | size |
trager | \(-\frac {2 \left (-2 b \,x^{3}+a \right ) \sqrt {b \,x^{4}+a x}}{9 a^{2} x^{5}}\) | \(28\) |
gosper | \(-\frac {2 \left (b \,x^{3}+a \right ) \left (-2 b \,x^{3}+a \right )}{9 x^{4} a^{2} \sqrt {b \,x^{4}+a x}}\) | \(35\) |
risch | \(-\frac {2 \left (b \,x^{3}+a \right ) \left (-2 b \,x^{3}+a \right )}{9 a^{2} x^{4} \sqrt {x \left (b \,x^{3}+a \right )}}\) | \(35\) |
default | \(-\frac {2 \sqrt {b \,x^{4}+a x}}{9 a \,x^{5}}+\frac {4 b \sqrt {b \,x^{4}+a x}}{9 a^{2} x^{2}}\) | \(41\) |
elliptic | \(-\frac {2 \sqrt {b \,x^{4}+a x}}{9 a \,x^{5}}+\frac {4 b \sqrt {b \,x^{4}+a x}}{9 a^{2} x^{2}}\) | \(41\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.29, size = 38, normalized size = 0.79 \begin {gather*} \frac {2 \, {\left (2 \, b^{2} x^{7} + a b x^{4} - a^{2} x\right )}}{9 \, \sqrt {b x^{3} + a} a^{2} x^{\frac {11}{2}}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 1.42, size = 29, normalized size = 0.60 \begin {gather*} \frac {2 \, \sqrt {b x^{4} + a x} {\left (2 \, b x^{3} - a\right )}}{9 \, a^{2} x^{5}} \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 {1}{x^{5} \sqrt {x \left (a + b x^{3}\right )}}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 0.89, size = 30, normalized size = 0.62 \begin {gather*} -\frac {2 \, {\left (b + \frac {a}{x^{3}}\right )}^{\frac {3}{2}}}{9 \, a^{2}} + \frac {2 \, \sqrt {b + \frac {a}{x^{3}}} b}{3 \, a^{2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 5.13, size = 27, normalized size = 0.56 \begin {gather*} -\frac {2\,\sqrt {b\,x^4+a\,x}\,\left (a-2\,b\,x^3\right )}{9\,a^2\,x^5} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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