Optimal. Leaf size=155 \[ -\frac{2 \sqrt{\cos (c+d x)} \csc (c+d x) \sqrt{\sec (c+d x)} \sqrt{\frac{a (1-\cos (c+d x))}{a+b \cos (c+d x)}} \sqrt{\frac{a (\cos (c+d x)+1)}{a+b \cos (c+d x)}} (a+b \cos (c+d x)) \Pi \left (\frac{b}{a+b};\sin ^{-1}\left (\frac{\sqrt{a+b} \sqrt{\cos (c+d x)}}{\sqrt{a+b \cos (c+d x)}}\right )|-\frac{a-b}{a+b}\right )}{d \sqrt{a+b}} \]
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Rubi [A] time = 0.143433, antiderivative size = 155, normalized size of antiderivative = 1., number of steps used = 2, number of rules used = 2, integrand size = 25, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.08, Rules used = {4222, 2811} \[ -\frac{2 \sqrt{\cos (c+d x)} \csc (c+d x) \sqrt{\sec (c+d x)} \sqrt{\frac{a (1-\cos (c+d x))}{a+b \cos (c+d x)}} \sqrt{\frac{a (\cos (c+d x)+1)}{a+b \cos (c+d x)}} (a+b \cos (c+d x)) \Pi \left (\frac{b}{a+b};\sin ^{-1}\left (\frac{\sqrt{a+b} \sqrt{\cos (c+d x)}}{\sqrt{a+b \cos (c+d x)}}\right )|-\frac{a-b}{a+b}\right )}{d \sqrt{a+b}} \]
Antiderivative was successfully verified.
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Rule 4222
Rule 2811
Rubi steps
\begin{align*} \int \sqrt{a+b \cos (c+d x)} \sqrt{\sec (c+d x)} \, dx &=\left (\sqrt{\cos (c+d x)} \sqrt{\sec (c+d x)}\right ) \int \frac{\sqrt{a+b \cos (c+d x)}}{\sqrt{\cos (c+d x)}} \, dx\\ &=-\frac{2 \sqrt{\cos (c+d x)} \sqrt{\frac{a (1-\cos (c+d x))}{a+b \cos (c+d x)}} \sqrt{\frac{a (1+\cos (c+d x))}{a+b \cos (c+d x)}} (a+b \cos (c+d x)) \csc (c+d x) \Pi \left (\frac{b}{a+b};\sin ^{-1}\left (\frac{\sqrt{a+b} \sqrt{\cos (c+d x)}}{\sqrt{a+b \cos (c+d x)}}\right )|-\frac{a-b}{a+b}\right ) \sqrt{\sec (c+d x)}}{\sqrt{a+b} d}\\ \end{align*}
Mathematica [A] time = 1.31723, size = 148, normalized size = 0.95 \[ \frac{2 \sqrt{\sec (c+d x)} \sqrt{\cos (c+d x) \sec ^2\left (\frac{1}{2} (c+d x)\right )} \sqrt{a+b \cos (c+d x)} \left ((a-b) F\left (\sin ^{-1}\left (\tan \left (\frac{1}{2} (c+d x)\right )\right )|\frac{b-a}{a+b}\right )-2 b \Pi \left (-1;-\sin ^{-1}\left (\tan \left (\frac{1}{2} (c+d x)\right )\right )|\frac{b-a}{a+b}\right )\right )}{d (a+b) \sqrt{\frac{\sec ^2\left (\frac{1}{2} (c+d x)\right ) (a+b \cos (c+d x))}{a+b}}} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.616, size = 199, normalized size = 1.3 \begin{align*} 2\,{\frac{\sqrt{ \left ( \cos \left ( dx+c \right ) \right ) ^{-1}} \left ( \sin \left ( dx+c \right ) \right ) ^{2}}{d\sqrt{a+b\cos \left ( dx+c \right ) } \left ( -1+\cos \left ( dx+c \right ) \right ) }\sqrt{{\frac{\cos \left ( dx+c \right ) }{1+\cos \left ( dx+c \right ) }}}\sqrt{{\frac{a+b\cos \left ( dx+c \right ) }{ \left ( a+b \right ) \left ( 1+\cos \left ( dx+c \right ) \right ) }}} \left ( a{\it EllipticF} \left ({\frac{-1+\cos \left ( dx+c \right ) }{\sin \left ( dx+c \right ) }},\sqrt{-{\frac{a-b}{a+b}}} \right ) -{\it EllipticF} \left ({\frac{-1+\cos \left ( dx+c \right ) }{\sin \left ( dx+c \right ) }},\sqrt{-{\frac{a-b}{a+b}}} \right ) b+2\,b{\it EllipticPi} \left ({\frac{-1+\cos \left ( dx+c \right ) }{\sin \left ( dx+c \right ) }},-1,\sqrt{-{\frac{a-b}{a+b}}} \right ) \right ) } \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 \sqrt{b \cos \left (d x + c\right ) + a} \sqrt{\sec \left (d x + c\right )}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [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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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \sqrt{a + b \cos{\left (c + d x \right )}} \sqrt{\sec{\left (c + d x \right )}}\, 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 \sqrt{b \cos \left (d x + c\right ) + a} \sqrt{\sec \left (d x + c\right )}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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