Optimal. Leaf size=124 \[ \frac {x \sqrt {\sqrt {a^2 x^4+b}+a x^2}}{4 a}-\frac {b x}{8 a \left (\sqrt {a^2 x^4+b}+a x^2\right )^{3/2}}-\frac {\sqrt {b} \tan ^{-1}\left (\frac {\sqrt {2} \sqrt {a} x \sqrt {\sqrt {a^2 x^4+b}+a x^2}}{\sqrt {b}}\right )}{8 \sqrt {2} a^{3/2}} \]
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Rubi [F] time = 0.20, 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 {x^2}{\sqrt {a x^2+\sqrt {b+a^2 x^4}}} \, dx \end {gather*}
Verification is not applicable to the result.
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Rubi steps
\begin {align*} \int \frac {x^2}{\sqrt {a x^2+\sqrt {b+a^2 x^4}}} \, dx &=\int \frac {x^2}{\sqrt {a x^2+\sqrt {b+a^2 x^4}}} \, dx\\ \end {align*}
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Mathematica [F] time = 0.13, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {x^2}{\sqrt {a x^2+\sqrt {b+a^2 x^4}}} \, dx \end {gather*}
Verification is not applicable to the result.
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IntegrateAlgebraic [A] time = 0.24, size = 124, normalized size = 1.00 \begin {gather*} -\frac {b x}{8 a \left (a x^2+\sqrt {b+a^2 x^4}\right )^{3/2}}+\frac {x \sqrt {a x^2+\sqrt {b+a^2 x^4}}}{4 a}-\frac {\sqrt {b} \tan ^{-1}\left (\frac {\sqrt {2} \sqrt {a} x \sqrt {a x^2+\sqrt {b+a^2 x^4}}}{\sqrt {b}}\right )}{8 \sqrt {2} a^{3/2}} \end {gather*}
Antiderivative was successfully verified.
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fricas [A] time = 3.17, size = 323, normalized size = 2.60 \begin {gather*} \left [\frac {\sqrt {\frac {1}{2}} b \sqrt {-\frac {b}{a}} \log \left (4 \, a^{2} b x^{4} - 4 \, \sqrt {a^{2} x^{4} + b} a b x^{2} + b^{2} - 4 \, {\left (2 \, \sqrt {\frac {1}{2}} \sqrt {a^{2} x^{4} + b} a^{2} x^{3} \sqrt {-\frac {b}{a}} - \sqrt {\frac {1}{2}} {\left (2 \, a^{3} x^{5} + a b x\right )} \sqrt {-\frac {b}{a}}\right )} \sqrt {a x^{2} + \sqrt {a^{2} x^{4} + b}}\right ) - 2 \, {\left (2 \, a^{2} x^{5} - 2 \, \sqrt {a^{2} x^{4} + b} a x^{3} - b x\right )} \sqrt {a x^{2} + \sqrt {a^{2} x^{4} + b}}}{16 \, a b}, \frac {\sqrt {\frac {1}{2}} b \sqrt {\frac {b}{a}} \arctan \left (-\frac {{\left (\sqrt {\frac {1}{2}} a x^{2} \sqrt {\frac {b}{a}} - \sqrt {\frac {1}{2}} \sqrt {a^{2} x^{4} + b} \sqrt {\frac {b}{a}}\right )} \sqrt {a x^{2} + \sqrt {a^{2} x^{4} + b}}}{b x}\right ) - {\left (2 \, a^{2} x^{5} - 2 \, \sqrt {a^{2} x^{4} + b} a x^{3} - b x\right )} \sqrt {a x^{2} + \sqrt {a^{2} x^{4} + b}}}{8 \, a b}\right ] \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 {x^{2}}{\sqrt {a x^{2} + \sqrt {a^{2} x^{4} + b}}}\,{d x} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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maple [F] time = 180.00, size = 0, normalized size = 0.00 \[\int \frac {x^{2}}{\sqrt {a \,x^{2}+\sqrt {a^{2} x^{4}+b}}}\, dx\]
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 {x^{2}}{\sqrt {a x^{2} + \sqrt {a^{2} x^{4} + b}}}\,{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 = -0.01 \begin {gather*} \int \frac {x^2}{\sqrt {\sqrt {a^2\,x^4+b}+a\,x^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^{2}}{\sqrt {a x^{2} + \sqrt {a^{2} x^{4} + b}}}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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