Optimal. Leaf size=54 \[ \frac{3 c \sin (a+b x) \sqrt [3]{c \sec (a+b x)} \text{Hypergeometric2F1}\left (-\frac{1}{6},\frac{1}{2},\frac{5}{6},\cos ^2(a+b x)\right )}{b \sqrt{\sin ^2(a+b x)}} \]
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Rubi [A] time = 0.0335746, antiderivative size = 54, normalized size of antiderivative = 1., number of steps used = 2, number of rules used = 2, integrand size = 12, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.167, Rules used = {3772, 2643} \[ \frac{3 c \sin (a+b x) \sqrt [3]{c \sec (a+b x)} \, _2F_1\left (-\frac{1}{6},\frac{1}{2};\frac{5}{6};\cos ^2(a+b x)\right )}{b \sqrt{\sin ^2(a+b x)}} \]
Antiderivative was successfully verified.
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Rule 3772
Rule 2643
Rubi steps
\begin{align*} \int (c \sec (a+b x))^{4/3} \, dx &=\sqrt [3]{\frac{\cos (a+b x)}{c}} \sqrt [3]{c \sec (a+b x)} \int \frac{1}{\left (\frac{\cos (a+b x)}{c}\right )^{4/3}} \, dx\\ &=\frac{3 c \, _2F_1\left (-\frac{1}{6},\frac{1}{2};\frac{5}{6};\cos ^2(a+b x)\right ) \sqrt [3]{c \sec (a+b x)} \sin (a+b x)}{b \sqrt{\sin ^2(a+b x)}}\\ \end{align*}
Mathematica [A] time = 0.0494979, size = 57, normalized size = 1.06 \[ \frac{3 \sqrt{-\tan ^2(a+b x)} \cot (a+b x) (c \sec (a+b x))^{4/3} \text{Hypergeometric2F1}\left (\frac{1}{2},\frac{2}{3},\frac{5}{3},\sec ^2(a+b x)\right )}{4 b} \]
Warning: Unable to verify antiderivative.
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Maple [F] time = 0.059, size = 0, normalized size = 0. \begin{align*} \int \left ( c\sec \left ( bx+a \right ) \right ) ^{{\frac{4}{3}}}\, 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 (c \sec \left (b x + a\right )\right )^{\frac{4}{3}}\,{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 (c \sec \left (b x + a\right )\right )^{\frac{1}{3}} c \sec \left (b x + a\right ), x\right ) \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 (c \sec \left (b x + a\right )\right )^{\frac{4}{3}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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