Optimal. Leaf size=78 \[ \frac{1}{6} a \sin (x) \cos ^3(x) \sqrt{a \cos ^4(x)}+\frac{5}{24} a \sin (x) \cos (x) \sqrt{a \cos ^4(x)}+\frac{5}{16} a \tan (x) \sqrt{a \cos ^4(x)}+\frac{5}{16} a x \sec ^2(x) \sqrt{a \cos ^4(x)} \]
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Rubi [A] time = 0.0319987, antiderivative size = 78, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 3, integrand size = 10, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.3, Rules used = {3207, 2635, 8} \[ \frac{1}{6} a \sin (x) \cos ^3(x) \sqrt{a \cos ^4(x)}+\frac{5}{24} a \sin (x) \cos (x) \sqrt{a \cos ^4(x)}+\frac{5}{16} a \tan (x) \sqrt{a \cos ^4(x)}+\frac{5}{16} a x \sec ^2(x) \sqrt{a \cos ^4(x)} \]
Antiderivative was successfully verified.
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Rule 3207
Rule 2635
Rule 8
Rubi steps
\begin{align*} \int \left (a \cos ^4(x)\right )^{3/2} \, dx &=\left (a \sqrt{a \cos ^4(x)} \sec ^2(x)\right ) \int \cos ^6(x) \, dx\\ &=\frac{1}{6} a \cos ^3(x) \sqrt{a \cos ^4(x)} \sin (x)+\frac{1}{6} \left (5 a \sqrt{a \cos ^4(x)} \sec ^2(x)\right ) \int \cos ^4(x) \, dx\\ &=\frac{5}{24} a \cos (x) \sqrt{a \cos ^4(x)} \sin (x)+\frac{1}{6} a \cos ^3(x) \sqrt{a \cos ^4(x)} \sin (x)+\frac{1}{8} \left (5 a \sqrt{a \cos ^4(x)} \sec ^2(x)\right ) \int \cos ^2(x) \, dx\\ &=\frac{5}{24} a \cos (x) \sqrt{a \cos ^4(x)} \sin (x)+\frac{1}{6} a \cos ^3(x) \sqrt{a \cos ^4(x)} \sin (x)+\frac{5}{16} a \sqrt{a \cos ^4(x)} \tan (x)+\frac{1}{16} \left (5 a \sqrt{a \cos ^4(x)} \sec ^2(x)\right ) \int 1 \, dx\\ &=\frac{5}{16} a x \sqrt{a \cos ^4(x)} \sec ^2(x)+\frac{5}{24} a \cos (x) \sqrt{a \cos ^4(x)} \sin (x)+\frac{1}{6} a \cos ^3(x) \sqrt{a \cos ^4(x)} \sin (x)+\frac{5}{16} a \sqrt{a \cos ^4(x)} \tan (x)\\ \end{align*}
Mathematica [A] time = 0.0685168, size = 38, normalized size = 0.49 \[ \frac{1}{192} (60 x+45 \sin (2 x)+9 \sin (4 x)+\sin (6 x)) \sec ^6(x) \left (a \cos ^4(x)\right )^{3/2} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.162, size = 41, normalized size = 0.5 \begin{align*}{\frac{8\,\sin \left ( x \right ) \left ( \cos \left ( x \right ) \right ) ^{5}+10\, \left ( \cos \left ( x \right ) \right ) ^{3}\sin \left ( x \right ) +15\,\cos \left ( x \right ) \sin \left ( x \right ) +15\,x}{48\, \left ( \cos \left ( x \right ) \right ) ^{6}} \left ( a \left ( \cos \left ( x \right ) \right ) ^{4} \right ) ^{{\frac{3}{2}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 2.31156, size = 74, normalized size = 0.95 \begin{align*} \frac{5}{16} \, a^{\frac{3}{2}} x + \frac{15 \, a^{\frac{3}{2}} \tan \left (x\right )^{5} + 40 \, a^{\frac{3}{2}} \tan \left (x\right )^{3} + 33 \, a^{\frac{3}{2}} \tan \left (x\right )}{48 \,{\left (\tan \left (x\right )^{6} + 3 \, \tan \left (x\right )^{4} + 3 \, \tan \left (x\right )^{2} + 1\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.08133, size = 128, normalized size = 1.64 \begin{align*} \frac{\sqrt{a \cos \left (x\right )^{4}}{\left (15 \, a x +{\left (8 \, a \cos \left (x\right )^{5} + 10 \, a \cos \left (x\right )^{3} + 15 \, a \cos \left (x\right )\right )} \sin \left (x\right )\right )}}{48 \, \cos \left (x\right )^{2}} \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 [A] time = 1.42684, size = 34, normalized size = 0.44 \begin{align*} \frac{1}{192} \, a^{\frac{3}{2}}{\left (60 \, x + \sin \left (6 \, x\right ) + 9 \, \sin \left (4 \, x\right ) + 45 \, \sin \left (2 \, x\right )\right )} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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