Optimal. Leaf size=185 \[ \frac{8}{3} a x^2 \cos ^2\left (\frac{x}{2}\right ) \sqrt{a \cos (x)+a}+16 a x^2 \sqrt{a \cos (x)+a}+\frac{4}{3} a x^3 \sin \left (\frac{x}{2}\right ) \cos \left (\frac{x}{2}\right ) \sqrt{a \cos (x)+a}+\frac{8}{3} a x^3 \tan \left (\frac{x}{2}\right ) \sqrt{a \cos (x)+a}-\frac{64}{27} a \cos ^2\left (\frac{x}{2}\right ) \sqrt{a \cos (x)+a}-\frac{1280}{9} a \sqrt{a \cos (x)+a}-\frac{32}{9} a x \sin \left (\frac{x}{2}\right ) \cos \left (\frac{x}{2}\right ) \sqrt{a \cos (x)+a}-\frac{640}{9} a x \tan \left (\frac{x}{2}\right ) \sqrt{a \cos (x)+a} \]
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Rubi [A] time = 0.183217, antiderivative size = 185, normalized size of antiderivative = 1., number of steps used = 9, number of rules used = 5, integrand size = 14, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.357, Rules used = {3319, 3311, 3296, 2638, 3310} \[ \frac{8}{3} a x^2 \cos ^2\left (\frac{x}{2}\right ) \sqrt{a \cos (x)+a}+16 a x^2 \sqrt{a \cos (x)+a}+\frac{4}{3} a x^3 \sin \left (\frac{x}{2}\right ) \cos \left (\frac{x}{2}\right ) \sqrt{a \cos (x)+a}+\frac{8}{3} a x^3 \tan \left (\frac{x}{2}\right ) \sqrt{a \cos (x)+a}-\frac{64}{27} a \cos ^2\left (\frac{x}{2}\right ) \sqrt{a \cos (x)+a}-\frac{1280}{9} a \sqrt{a \cos (x)+a}-\frac{32}{9} a x \sin \left (\frac{x}{2}\right ) \cos \left (\frac{x}{2}\right ) \sqrt{a \cos (x)+a}-\frac{640}{9} a x \tan \left (\frac{x}{2}\right ) \sqrt{a \cos (x)+a} \]
Antiderivative was successfully verified.
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Rule 3319
Rule 3311
Rule 3296
Rule 2638
Rule 3310
Rubi steps
\begin{align*} \int x^3 (a+a \cos (x))^{3/2} \, dx &=\left (2 a \sqrt{a+a \cos (x)} \sec \left (\frac{x}{2}\right )\right ) \int x^3 \cos ^3\left (\frac{x}{2}\right ) \, dx\\ &=\frac{8}{3} a x^2 \cos ^2\left (\frac{x}{2}\right ) \sqrt{a+a \cos (x)}+\frac{4}{3} a x^3 \cos \left (\frac{x}{2}\right ) \sqrt{a+a \cos (x)} \sin \left (\frac{x}{2}\right )+\frac{1}{3} \left (4 a \sqrt{a+a \cos (x)} \sec \left (\frac{x}{2}\right )\right ) \int x^3 \cos \left (\frac{x}{2}\right ) \, dx-\frac{1}{3} \left (16 a \sqrt{a+a \cos (x)} \sec \left (\frac{x}{2}\right )\right ) \int x \cos ^3\left (\frac{x}{2}\right ) \, dx\\ &=-\frac{64}{27} a \cos ^2\left (\frac{x}{2}\right ) \sqrt{a+a \cos (x)}+\frac{8}{3} a x^2 \cos ^2\left (\frac{x}{2}\right ) \sqrt{a+a \cos (x)}-\frac{32}{9} a x \cos \left (\frac{x}{2}\right ) \sqrt{a+a \cos (x)} \sin \left (\frac{x}{2}\right )+\frac{4}{3} a x^3 \cos \left (\frac{x}{2}\right ) \sqrt{a+a \cos (x)} \sin \left (\frac{x}{2}\right )+\frac{8}{3} a x^3 \sqrt{a+a \cos (x)} \tan \left (\frac{x}{2}\right )-\frac{1}{9} \left (32 a \sqrt{a+a \cos (x)} \sec \left (\frac{x}{2}\right )\right ) \int x \cos \left (\frac{x}{2}\right ) \, dx-\left (8 a \sqrt{a+a \cos (x)} \sec \left (\frac{x}{2}\right )\right ) \int x^2 \sin \left (\frac{x}{2}\right ) \, dx\\ &=16 a x^2 \sqrt{a+a \cos (x)}-\frac{64}{27} a \cos ^2\left (\frac{x}{2}\right ) \sqrt{a+a \cos (x)}+\frac{8}{3} a x^2 \cos ^2\left (\frac{x}{2}\right ) \sqrt{a+a \cos (x)}-\frac{32}{9} a x \cos \left (\frac{x}{2}\right ) \sqrt{a+a \cos (x)} \sin \left (\frac{x}{2}\right )+\frac{4}{3} a x^3 \cos \left (\frac{x}{2}\right ) \sqrt{a+a \cos (x)} \sin \left (\frac{x}{2}\right )-\frac{64}{9} a x \sqrt{a+a \cos (x)} \tan \left (\frac{x}{2}\right )+\frac{8}{3} a x^3 \sqrt{a+a \cos (x)} \tan \left (\frac{x}{2}\right )+\frac{1}{9} \left (64 a \sqrt{a+a \cos (x)} \sec \left (\frac{x}{2}\right )\right ) \int \sin \left (\frac{x}{2}\right ) \, dx-\left (32 a \sqrt{a+a \cos (x)} \sec \left (\frac{x}{2}\right )\right ) \int x \cos \left (\frac{x}{2}\right ) \, dx\\ &=-\frac{128}{9} a \sqrt{a+a \cos (x)}+16 a x^2 \sqrt{a+a \cos (x)}-\frac{64}{27} a \cos ^2\left (\frac{x}{2}\right ) \sqrt{a+a \cos (x)}+\frac{8}{3} a x^2 \cos ^2\left (\frac{x}{2}\right ) \sqrt{a+a \cos (x)}-\frac{32}{9} a x \cos \left (\frac{x}{2}\right ) \sqrt{a+a \cos (x)} \sin \left (\frac{x}{2}\right )+\frac{4}{3} a x^3 \cos \left (\frac{x}{2}\right ) \sqrt{a+a \cos (x)} \sin \left (\frac{x}{2}\right )-\frac{640}{9} a x \sqrt{a+a \cos (x)} \tan \left (\frac{x}{2}\right )+\frac{8}{3} a x^3 \sqrt{a+a \cos (x)} \tan \left (\frac{x}{2}\right )+\left (64 a \sqrt{a+a \cos (x)} \sec \left (\frac{x}{2}\right )\right ) \int \sin \left (\frac{x}{2}\right ) \, dx\\ &=-\frac{1280}{9} a \sqrt{a+a \cos (x)}+16 a x^2 \sqrt{a+a \cos (x)}-\frac{64}{27} a \cos ^2\left (\frac{x}{2}\right ) \sqrt{a+a \cos (x)}+\frac{8}{3} a x^2 \cos ^2\left (\frac{x}{2}\right ) \sqrt{a+a \cos (x)}-\frac{32}{9} a x \cos \left (\frac{x}{2}\right ) \sqrt{a+a \cos (x)} \sin \left (\frac{x}{2}\right )+\frac{4}{3} a x^3 \cos \left (\frac{x}{2}\right ) \sqrt{a+a \cos (x)} \sin \left (\frac{x}{2}\right )-\frac{640}{9} a x \sqrt{a+a \cos (x)} \tan \left (\frac{x}{2}\right )+\frac{8}{3} a x^3 \sqrt{a+a \cos (x)} \tan \left (\frac{x}{2}\right )\\ \end{align*}
Mathematica [A] time = 0.29763, size = 67, normalized size = 0.36 \[ \frac{2}{27} a \sqrt{a (\cos (x)+1)} \left (234 x^2+3 \left (15 x^2-328\right ) x \tan \left (\frac{x}{2}\right )+\cos (x) \left (2 \left (9 x^2-8\right )+3 x \left (3 x^2-8\right ) \tan \left (\frac{x}{2}\right )\right )-1936\right ) \]
Antiderivative was successfully verified.
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Maple [F] time = 0.129, size = 0, normalized size = 0. \begin{align*} \int{x}^{3} \left ( a+a\cos \left ( x \right ) \right ) ^{{\frac{3}{2}}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 2.25295, size = 132, normalized size = 0.71 \begin{align*} \frac{1}{27} \,{\left (81 \, \sqrt{2} a x^{3} \sin \left (\frac{1}{2} \, x\right ) + 486 \, \sqrt{2} a x^{2} \cos \left (\frac{1}{2} \, x\right ) - 1944 \, \sqrt{2} a x \sin \left (\frac{1}{2} \, x\right ) - 3888 \, \sqrt{2} a \cos \left (\frac{1}{2} \, x\right ) + 2 \,{\left (9 \, \sqrt{2} a x^{2} - 8 \, \sqrt{2} a\right )} \cos \left (\frac{3}{2} \, x\right ) + 3 \,{\left (3 \, \sqrt{2} a x^{3} - 8 \, \sqrt{2} a x\right )} \sin \left (\frac{3}{2} \, x\right )\right )} \sqrt{a} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: UnboundLocalError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F(-1)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int{\left (a \cos \left (x\right ) + a\right )}^{\frac{3}{2}} x^{3}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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