Optimal. Leaf size=243 \[ \frac {5 a^{3/2} \tan ^{-1}\left (\frac {\sqrt {a} x}{\sqrt {2} \sqrt {b} \sqrt {\sqrt {a x^2+b^2}+b}}-\frac {\sqrt {\sqrt {a x^2+b^2}+b}}{\sqrt {2} \sqrt {b}}\right )}{32 \sqrt {2} b^{7/2}}+\frac {a^{5/2} \left (15 x^2 \sqrt {a x^2+b^2}+5 b x^2\right )+a^{3/2} \left (-8 b^2 \sqrt {a x^2+b^2}-56 b^3\right )}{\frac {384 a^{3/2} b^4 x^3 \sqrt {a x^2+b^2}}{\left (\sqrt {a x^2+b^2}+b\right )^{3/2}}+\frac {192 a^{3/2} b^3 x^3 \left (a x^2+2 b^2\right )}{\left (\sqrt {a x^2+b^2}+b\right )^{3/2}}} \]
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Rubi [F] time = 0.16, antiderivative size = 0, normalized size of antiderivative = 0.00, number of steps used = 0, number of rules used = 0, integrand size = 0, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.000, Rules used = {} \begin {gather*} \int \frac {1}{x^4 \sqrt {b+\sqrt {b^2+a x^2}}} \, dx \end {gather*}
Verification is not applicable to the result.
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Rubi steps
\begin {align*} \int \frac {1}{x^4 \sqrt {b+\sqrt {b^2+a x^2}}} \, dx &=\int \frac {1}{x^4 \sqrt {b+\sqrt {b^2+a x^2}}} \, dx\\ \end {align*}
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Mathematica [C] time = 0.61, size = 196, normalized size = 0.81 \begin {gather*} \frac {a^2 x \left (17 \left (2 b \sqrt {a x^2+b^2}+a x^2+2 b^2\right ) \, _2F_1\left (-\frac {5}{2},1;-\frac {3}{2};\frac {b-\sqrt {b^2+a x^2}}{2 b}\right )-2 \left (\left (2 b \sqrt {a x^2+b^2}+a x^2+2 b^2\right ) \, _2F_1\left (-\frac {5}{2},2;-\frac {3}{2};\frac {b-\sqrt {b^2+a x^2}}{2 b}\right )+5 b \left (7 \sqrt {a x^2+b^2}-b\right )\right )\right )}{160 b \left (\sqrt {a x^2+b^2}-b\right )^3 \left (\sqrt {a x^2+b^2}+b\right )^{5/2}} \end {gather*}
Antiderivative was successfully verified.
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IntegrateAlgebraic [A] time = 0.39, size = 211, normalized size = 0.87 \begin {gather*} \frac {5 a^{3/2} \tan ^{-1}\left (\frac {\sqrt {a} x}{\sqrt {2} \sqrt {b} \sqrt {\sqrt {a x^2+b^2}+b}}\right )}{64 \sqrt {2} b^{7/2}}+\frac {a^{5/2} \left (15 x^2 \sqrt {a x^2+b^2}+5 b x^2\right )+a^{3/2} \left (-8 b^2 \sqrt {a x^2+b^2}-56 b^3\right )}{\frac {384 a^{3/2} b^4 x^3 \sqrt {a x^2+b^2}}{\left (\sqrt {a x^2+b^2}+b\right )^{3/2}}+\frac {192 a^{3/2} b^3 x^3 \left (a x^2+2 b^2\right )}{\left (\sqrt {a x^2+b^2}+b\right )^{3/2}}} \end {gather*}
Antiderivative was successfully verified.
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fricas [F(-1)] time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Timed out} \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*} \int \frac {1}{\sqrt {b + \sqrt {a x^{2} + b^{2}}} x^{4}}\,{d x} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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maple [C] time = 0.04, size = 31, normalized size = 0.13 \begin {gather*} -\frac {\sqrt {2}\, \hypergeom \left (\left [-\frac {3}{2}, \frac {1}{4}, \frac {3}{4}\right ], \left [-\frac {1}{2}, \frac {3}{2}\right ], -\frac {x^{2} a}{b^{2}}\right )}{6 \left (b^{2}\right )^{\frac {1}{4}} x^{3}} \end {gather*}
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*} \int \frac {1}{\sqrt {b + \sqrt {a x^{2} + b^{2}}} x^{4}}\,{d x} \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 = -0.00 \begin {gather*} \int \frac {1}{x^4\,\sqrt {b+\sqrt {b^2+a\,x^2}}} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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sympy [C] time = 1.28, size = 49, normalized size = 0.20 \begin {gather*} - \frac {\Gamma \left (\frac {1}{4}\right ) \Gamma \left (\frac {3}{4}\right ) {{}_{3}F_{2}\left (\begin {matrix} - \frac {3}{2}, \frac {1}{4}, \frac {3}{4} \\ - \frac {1}{2}, \frac {3}{2} \end {matrix}\middle | {\frac {a x^{2} e^{i \pi }}{b^{2}}} \right )}}{6 \pi \sqrt {b} x^{3}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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