Optimal. Leaf size=72 \[ \frac{2 \sqrt{\cos (a+b x)} \text{EllipticF}\left (\frac{1}{2} (a+b x),2\right ) \sqrt{c \sec (a+b x)}}{3 b c^2}+\frac{2 \sin (a+b x)}{3 b c \sqrt{c \sec (a+b x)}} \]
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Rubi [A] time = 0.0461409, antiderivative size = 72, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 3, integrand size = 12, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.25, Rules used = {3769, 3771, 2641} \[ \frac{2 \sqrt{\cos (a+b x)} F\left (\left .\frac{1}{2} (a+b x)\right |2\right ) \sqrt{c \sec (a+b x)}}{3 b c^2}+\frac{2 \sin (a+b x)}{3 b c \sqrt{c \sec (a+b x)}} \]
Antiderivative was successfully verified.
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Rule 3769
Rule 3771
Rule 2641
Rubi steps
\begin{align*} \int \frac{1}{(c \sec (a+b x))^{3/2}} \, dx &=\frac{2 \sin (a+b x)}{3 b c \sqrt{c \sec (a+b x)}}+\frac{\int \sqrt{c \sec (a+b x)} \, dx}{3 c^2}\\ &=\frac{2 \sin (a+b x)}{3 b c \sqrt{c \sec (a+b x)}}+\frac{\left (\sqrt{\cos (a+b x)} \sqrt{c \sec (a+b x)}\right ) \int \frac{1}{\sqrt{\cos (a+b x)}} \, dx}{3 c^2}\\ &=\frac{2 \sqrt{\cos (a+b x)} F\left (\left .\frac{1}{2} (a+b x)\right |2\right ) \sqrt{c \sec (a+b x)}}{3 b c^2}+\frac{2 \sin (a+b x)}{3 b c \sqrt{c \sec (a+b x)}}\\ \end{align*}
Mathematica [A] time = 0.0579416, size = 59, normalized size = 0.82 \[ \frac{\sec ^2(a+b x) \left (2 \sqrt{\cos (a+b x)} \text{EllipticF}\left (\frac{1}{2} (a+b x),2\right )+\sin (2 (a+b x))\right )}{3 b (c \sec (a+b x))^{3/2}} \]
Antiderivative was successfully verified.
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Maple [C] time = 0.155, size = 131, normalized size = 1.8 \begin{align*} -{\frac{2\, \left ( \cos \left ( bx+a \right ) +1 \right ) ^{2} \left ( -1+\cos \left ( bx+a \right ) \right ) }{3\,b \left ( \cos \left ( bx+a \right ) \right ) ^{2} \left ( \sin \left ( bx+a \right ) \right ) ^{3}} \left ( i{\it EllipticF} \left ({\frac{i \left ( -1+\cos \left ( bx+a \right ) \right ) }{\sin \left ( bx+a \right ) }},i \right ) \sqrt{ \left ( \cos \left ( bx+a \right ) +1 \right ) ^{-1}}\sqrt{{\frac{\cos \left ( bx+a \right ) }{\cos \left ( bx+a \right ) +1}}}\sin \left ( bx+a \right ) - \left ( \cos \left ( bx+a \right ) \right ) ^{2}+\cos \left ( bx+a \right ) \right ) \left ({\frac{c}{\cos \left ( bx+a \right ) }} \right ) ^{-{\frac{3}{2}}}} \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 \frac{1}{\left (c \sec \left (b x + a\right )\right )^{\frac{3}{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 (\frac{\sqrt{c \sec \left (b x + a\right )}}{c^{2} \sec \left (b x + a\right )^{2}}, x\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{1}{\left (c \sec{\left (a + b x \right )}\right )^{\frac{3}{2}}}\, dx \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 \frac{1}{\left (c \sec \left (b x + a\right )\right )^{\frac{3}{2}}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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