Optimal. Leaf size=104 \[ -\frac {4 a x \sqrt [4]{a-b x^2}}{7 b^2}-\frac {2 x^3 \sqrt [4]{a-b x^2}}{7 b}+\frac {8 a^{5/2} \left (1-\frac {b x^2}{a}\right )^{3/4} F\left (\left .\frac {1}{2} \sin ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right )\right |2\right )}{7 b^{5/2} \left (a-b x^2\right )^{3/4}} \]
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Rubi [A]
time = 0.02, antiderivative size = 104, normalized size of antiderivative = 1.00, number of steps
used = 4, number of rules used = 3, integrand size = 16, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.188, Rules used = {327, 239, 238}
\begin {gather*} \frac {8 a^{5/2} \left (1-\frac {b x^2}{a}\right )^{3/4} F\left (\left .\frac {1}{2} \text {ArcSin}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right )\right |2\right )}{7 b^{5/2} \left (a-b x^2\right )^{3/4}}-\frac {4 a x \sqrt [4]{a-b x^2}}{7 b^2}-\frac {2 x^3 \sqrt [4]{a-b x^2}}{7 b} \end {gather*}
Antiderivative was successfully verified.
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Rule 238
Rule 239
Rule 327
Rubi steps
\begin {align*} \int \frac {x^4}{\left (a-b x^2\right )^{3/4}} \, dx &=-\frac {2 x^3 \sqrt [4]{a-b x^2}}{7 b}+\frac {(6 a) \int \frac {x^2}{\left (a-b x^2\right )^{3/4}} \, dx}{7 b}\\ &=-\frac {4 a x \sqrt [4]{a-b x^2}}{7 b^2}-\frac {2 x^3 \sqrt [4]{a-b x^2}}{7 b}+\frac {\left (4 a^2\right ) \int \frac {1}{\left (a-b x^2\right )^{3/4}} \, dx}{7 b^2}\\ &=-\frac {4 a x \sqrt [4]{a-b x^2}}{7 b^2}-\frac {2 x^3 \sqrt [4]{a-b x^2}}{7 b}+\frac {\left (4 a^2 \left (1-\frac {b x^2}{a}\right )^{3/4}\right ) \int \frac {1}{\left (1-\frac {b x^2}{a}\right )^{3/4}} \, dx}{7 b^2 \left (a-b x^2\right )^{3/4}}\\ &=-\frac {4 a x \sqrt [4]{a-b x^2}}{7 b^2}-\frac {2 x^3 \sqrt [4]{a-b x^2}}{7 b}+\frac {8 a^{5/2} \left (1-\frac {b x^2}{a}\right )^{3/4} F\left (\left .\frac {1}{2} \sin ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right )\right |2\right )}{7 b^{5/2} \left (a-b x^2\right )^{3/4}}\\ \end {align*}
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Mathematica [C] Result contains higher order function than in optimal. Order 5 vs. order 4 in
optimal.
time = 7.01, size = 77, normalized size = 0.74 \begin {gather*} \frac {2 x \left (-2 a^2+a b x^2+b^2 x^4+2 a^2 \left (1-\frac {b x^2}{a}\right )^{3/4} \, _2F_1\left (\frac {1}{2},\frac {3}{4};\frac {3}{2};\frac {b x^2}{a}\right )\right )}{7 b^2 \left (a-b x^2\right )^{3/4}} \end {gather*}
Antiderivative was successfully verified.
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Maple [F]
time = 0.01, size = 0, normalized size = 0.00 \[\int \frac {x^{4}}{\left (-b \,x^{2}+a \right )^{\frac {3}{4}}}\, dx\]
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*} \text {Failed to integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [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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Sympy [C] Result contains complex when optimal does not.
time = 0.47, size = 29, normalized size = 0.28 \begin {gather*} \frac {x^{5} {{}_{2}F_{1}\left (\begin {matrix} \frac {3}{4}, \frac {5}{2} \\ \frac {7}{2} \end {matrix}\middle | {\frac {b x^{2} e^{2 i \pi }}{a}} \right )}}{5 a^{\frac {3}{4}}} \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 {x^4}{{\left (a-b\,x^2\right )}^{3/4}} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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