Optimal. Leaf size=113 \[ -\frac {a^2}{4 b^3 \left (a+b x^2\right ) \sqrt {a^2+2 a b x^2+b^2 x^4}}+\frac {a}{b^3 \sqrt {a^2+2 a b x^2+b^2 x^4}}+\frac {\left (a+b x^2\right ) \log \left (a+b x^2\right )}{2 b^3 \sqrt {a^2+2 a b x^2+b^2 x^4}} \]
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Rubi [A] time = 0.10, antiderivative size = 113, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, integrand size = 26, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.115, Rules used = {1111, 646, 43} \begin {gather*} -\frac {a^2}{4 b^3 \left (a+b x^2\right ) \sqrt {a^2+2 a b x^2+b^2 x^4}}+\frac {a}{b^3 \sqrt {a^2+2 a b x^2+b^2 x^4}}+\frac {\left (a+b x^2\right ) \log \left (a+b x^2\right )}{2 b^3 \sqrt {a^2+2 a b x^2+b^2 x^4}} \end {gather*}
Antiderivative was successfully verified.
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Rule 43
Rule 646
Rule 1111
Rubi steps
\begin {align*} \int \frac {x^5}{\left (a^2+2 a b x^2+b^2 x^4\right )^{3/2}} \, dx &=\frac {1}{2} \operatorname {Subst}\left (\int \frac {x^2}{\left (a^2+2 a b x+b^2 x^2\right )^{3/2}} \, dx,x,x^2\right )\\ &=\frac {\left (b^2 \left (a b+b^2 x^2\right )\right ) \operatorname {Subst}\left (\int \frac {x^2}{\left (a b+b^2 x\right )^3} \, dx,x,x^2\right )}{2 \sqrt {a^2+2 a b x^2+b^2 x^4}}\\ &=\frac {\left (b^2 \left (a b+b^2 x^2\right )\right ) \operatorname {Subst}\left (\int \left (\frac {a^2}{b^5 (a+b x)^3}-\frac {2 a}{b^5 (a+b x)^2}+\frac {1}{b^5 (a+b x)}\right ) \, dx,x,x^2\right )}{2 \sqrt {a^2+2 a b x^2+b^2 x^4}}\\ &=\frac {a}{b^3 \sqrt {a^2+2 a b x^2+b^2 x^4}}-\frac {a^2}{4 b^3 \left (a+b x^2\right ) \sqrt {a^2+2 a b x^2+b^2 x^4}}+\frac {\left (a+b x^2\right ) \log \left (a+b x^2\right )}{2 b^3 \sqrt {a^2+2 a b x^2+b^2 x^4}}\\ \end {align*}
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Mathematica [A] time = 0.02, size = 61, normalized size = 0.54 \begin {gather*} \frac {a \left (3 a+4 b x^2\right )+2 \left (a+b x^2\right )^2 \log \left (a+b x^2\right )}{4 b^3 \left (a+b x^2\right ) \sqrt {\left (a+b x^2\right )^2}} \end {gather*}
Antiderivative was successfully verified.
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IntegrateAlgebraic [B] time = 1.17, size = 1590, normalized size = 14.07 \begin {gather*} \frac {-2 \sqrt {b^2} \log \left (-\sqrt {b^2} x^2-a+\sqrt {b^2 x^4+2 a b x^2+a^2}\right ) x^8-2 \sqrt {b^2} \log \left (-\sqrt {b^2} x^2+a+\sqrt {b^2 x^4+2 a b x^2+a^2}\right ) x^8-\frac {4 a \sqrt {b^2} \log \left (-\sqrt {b^2} x^2-a+\sqrt {b^2 x^4+2 a b x^2+a^2}\right ) x^6}{b}+2 \sqrt {b^2 x^4+2 a b x^2+a^2} \log \left (-\sqrt {b^2} x^2-a+\sqrt {b^2 x^4+2 a b x^2+a^2}\right ) x^6-\frac {4 a \sqrt {b^2} \log \left (-\sqrt {b^2} x^2+a+\sqrt {b^2 x^4+2 a b x^2+a^2}\right ) x^6}{b}+2 \sqrt {b^2 x^4+2 a b x^2+a^2} \log \left (-\sqrt {b^2} x^2+a+\sqrt {b^2 x^4+2 a b x^2+a^2}\right ) x^6+\frac {6 a^2 \left (b^2\right )^{3/2} x^4}{b^4}-\frac {2 a^2 \left (b^2\right )^{3/2} \log \left (-\sqrt {b^2} x^2-a+\sqrt {b^2 x^4+2 a b x^2+a^2}\right ) x^4}{b^4}+\frac {2 a \sqrt {b^2 x^4+2 a b x^2+a^2} \log \left (-\sqrt {b^2} x^2-a+\sqrt {b^2 x^4+2 a b x^2+a^2}\right ) x^4}{b}-\frac {2 a^2 \left (b^2\right )^{3/2} \log \left (-\sqrt {b^2} x^2+a+\sqrt {b^2 x^4+2 a b x^2+a^2}\right ) x^4}{b^4}+\frac {2 a \sqrt {b^2 x^4+2 a b x^2+a^2} \log \left (-\sqrt {b^2} x^2+a+\sqrt {b^2 x^4+2 a b x^2+a^2}\right ) x^4}{b}+\frac {6 a^3 \sqrt {b^2} x^2}{b^3}-\frac {6 a^2 \sqrt {b^2 x^4+2 a b x^2+a^2} x^2}{b^2}+\frac {2 a^4 \sqrt {b^2}}{b^4}}{\left (-\sqrt {b^2} x^2-a+\sqrt {b^2 x^4+2 a b x^2+a^2}\right )^2 \left (-\sqrt {b^2} x^2+a+\sqrt {b^2 x^4+2 a b x^2+a^2}\right )^2}+\frac {2 b \log \left (-\sqrt {b^2} x^2+a+\sqrt {b^2 x^4+2 a b x^2+a^2}\right ) x^8-2 b \log \left (-\sqrt {b^2} x^2 b^3-a b^3+\sqrt {b^2 x^4+2 a b x^2+a^2} b^3\right ) x^8+4 a \log \left (-\sqrt {b^2} x^2+a+\sqrt {b^2 x^4+2 a b x^2+a^2}\right ) x^6-\frac {2 b \sqrt {b^2 x^4+2 a b x^2+a^2} \log \left (-\sqrt {b^2} x^2+a+\sqrt {b^2 x^4+2 a b x^2+a^2}\right ) x^6}{\sqrt {b^2}}-4 a \log \left (-\sqrt {b^2} x^2 b^3-a b^3+\sqrt {b^2 x^4+2 a b x^2+a^2} b^3\right ) x^6+\frac {2 b \sqrt {b^2 x^4+2 a b x^2+a^2} \log \left (-\sqrt {b^2} x^2 b^3-a b^3+\sqrt {b^2 x^4+2 a b x^2+a^2} b^3\right ) x^6}{\sqrt {b^2}}-\frac {8 a b x^6}{\sqrt {b^2}}-\frac {2 a \sqrt {b^2 x^4+2 a b x^2+a^2} \log \left (-\sqrt {b^2} x^2+a+\sqrt {b^2 x^4+2 a b x^2+a^2}\right ) x^4}{\sqrt {b^2}}+\frac {2 a^2 \log \left (-\sqrt {b^2} x^2+a+\sqrt {b^2 x^4+2 a b x^2+a^2}\right ) x^4}{b}+\frac {2 a \sqrt {b^2 x^4+2 a b x^2+a^2} \log \left (-\sqrt {b^2} x^2 b^3-a b^3+\sqrt {b^2 x^4+2 a b x^2+a^2} b^3\right ) x^4}{\sqrt {b^2}}-\frac {2 a^2 \log \left (-\sqrt {b^2} x^2 b^3-a b^3+\sqrt {b^2 x^4+2 a b x^2+a^2} b^3\right ) x^4}{b}+\frac {8 a \sqrt {b^2 x^4+2 a b x^2+a^2} x^4}{b}-\frac {12 a^2 x^4}{\sqrt {b^2}}+\frac {4 a^2 \sqrt {b^2 x^4+2 a b x^2+a^2} x^2}{b^2}-\frac {6 a^3 x^2}{b \sqrt {b^2}}+\frac {2 a^3 \sqrt {b^2 x^4+2 a b x^2+a^2}}{b^3}}{\left (-\sqrt {b^2} x^2-a+\sqrt {b^2 x^4+2 a b x^2+a^2}\right )^2 \left (-\sqrt {b^2} x^2+a+\sqrt {b^2 x^4+2 a b x^2+a^2}\right )^2} \end {gather*}
Antiderivative was successfully verified.
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fricas [A] time = 1.03, size = 69, normalized size = 0.61 \begin {gather*} \frac {4 \, a b x^{2} + 3 \, a^{2} + 2 \, {\left (b^{2} x^{4} + 2 \, a b x^{2} + a^{2}\right )} \log \left (b x^{2} + a\right )}{4 \, {\left (b^{5} x^{4} + 2 \, a b^{4} x^{2} + a^{2} b^{3}\right )}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.23, size = 64, normalized size = 0.57 \begin {gather*} \frac {\log \left ({\left | b x^{2} + a \right |}\right )}{2 \, b^{3} \mathrm {sgn}\left (b x^{2} + a\right )} + \frac {4 \, a x^{2} + \frac {3 \, a^{2}}{b}}{4 \, {\left (b x^{2} + a\right )}^{2} b^{2} \mathrm {sgn}\left (b x^{2} + a\right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.02, size = 81, normalized size = 0.72 \begin {gather*} \frac {\left (2 b^{2} x^{4} \ln \left (b \,x^{2}+a \right )+4 a b \,x^{2} \ln \left (b \,x^{2}+a \right )+4 a b \,x^{2}+2 a^{2} \ln \left (b \,x^{2}+a \right )+3 a^{2}\right ) \left (b \,x^{2}+a \right )}{4 \left (\left (b \,x^{2}+a \right )^{2}\right )^{\frac {3}{2}} b^{3}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 1.37, size = 55, normalized size = 0.49 \begin {gather*} \frac {4 \, a b x^{2} + 3 \, a^{2}}{4 \, {\left (b^{5} x^{4} + 2 \, a b^{4} x^{2} + a^{2} b^{3}\right )}} + \frac {\log \left (b x^{2} + a\right )}{2 \, b^{3}} \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 {x^5}{{\left (a^2+2\,a\,b\,x^2+b^2\,x^4\right )}^{3/2}} \,d x \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 {x^{5}}{\left (\left (a + b x^{2}\right )^{2}\right )^{\frac {3}{2}}}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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