Optimal. Leaf size=101 \[ \frac{4 a^{5/2} \sqrt [4]{1-\frac{b x^2}{a}} E\left (\left .\frac{1}{2} \sin ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{a}}\right )\right |2\right )}{15 b^{3/2} \sqrt [4]{a-b x^2}}+\frac{2}{9} x^3 \left (a-b x^2\right )^{3/4}-\frac{2 a x \left (a-b x^2\right )^{3/4}}{15 b} \]
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Rubi [A] time = 0.0329896, antiderivative size = 101, normalized size of antiderivative = 1., number of steps used = 4, number of rules used = 4, integrand size = 16, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.25, Rules used = {279, 321, 229, 228} \[ \frac{4 a^{5/2} \sqrt [4]{1-\frac{b x^2}{a}} E\left (\left .\frac{1}{2} \sin ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{a}}\right )\right |2\right )}{15 b^{3/2} \sqrt [4]{a-b x^2}}+\frac{2}{9} x^3 \left (a-b x^2\right )^{3/4}-\frac{2 a x \left (a-b x^2\right )^{3/4}}{15 b} \]
Antiderivative was successfully verified.
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Rule 279
Rule 321
Rule 229
Rule 228
Rubi steps
\begin{align*} \int x^2 \left (a-b x^2\right )^{3/4} \, dx &=\frac{2}{9} x^3 \left (a-b x^2\right )^{3/4}+\frac{1}{3} a \int \frac{x^2}{\sqrt [4]{a-b x^2}} \, dx\\ &=-\frac{2 a x \left (a-b x^2\right )^{3/4}}{15 b}+\frac{2}{9} x^3 \left (a-b x^2\right )^{3/4}+\frac{\left (2 a^2\right ) \int \frac{1}{\sqrt [4]{a-b x^2}} \, dx}{15 b}\\ &=-\frac{2 a x \left (a-b x^2\right )^{3/4}}{15 b}+\frac{2}{9} x^3 \left (a-b x^2\right )^{3/4}+\frac{\left (2 a^2 \sqrt [4]{1-\frac{b x^2}{a}}\right ) \int \frac{1}{\sqrt [4]{1-\frac{b x^2}{a}}} \, dx}{15 b \sqrt [4]{a-b x^2}}\\ &=-\frac{2 a x \left (a-b x^2\right )^{3/4}}{15 b}+\frac{2}{9} x^3 \left (a-b x^2\right )^{3/4}+\frac{4 a^{5/2} \sqrt [4]{1-\frac{b x^2}{a}} E\left (\left .\frac{1}{2} \sin ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{a}}\right )\right |2\right )}{15 b^{3/2} \sqrt [4]{a-b x^2}}\\ \end{align*}
Mathematica [C] time = 0.0519357, size = 64, normalized size = 0.63 \[ \frac{2 x \left (a-b x^2\right )^{3/4} \left (\frac{a \, _2F_1\left (-\frac{3}{4},\frac{1}{2};\frac{3}{2};\frac{b x^2}{a}\right )}{\left (1-\frac{b x^2}{a}\right )^{3/4}}-a+b x^2\right )}{9 b} \]
Antiderivative was successfully verified.
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Maple [F] time = 0.025, size = 0, normalized size = 0. \begin{align*} \int{x}^{2} \left ( -b{x}^{2}+a \right ) ^{{\frac{3}{4}}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int{\left (-b x^{2} + a\right )}^{\frac{3}{4}} x^{2}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F] time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left ({\left (-b x^{2} + a\right )}^{\frac{3}{4}} x^{2}, x\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [C] time = 1.11439, size = 31, normalized size = 0.31 \begin{align*} \frac{a^{\frac{3}{4}} x^{3}{{}_{2}F_{1}\left (\begin{matrix} - \frac{3}{4}, \frac{3}{2} \\ \frac{5}{2} \end{matrix}\middle |{\frac{b x^{2} e^{2 i \pi }}{a}} \right )}}{3} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: TypeError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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