Optimal. Leaf size=110 \[ -\frac{1}{2} d \sin \left (\frac{c}{2}\right ) \text{CosIntegral}\left (\frac{d x}{2}\right ) \sec \left (\frac{c}{2}+\frac{d x}{2}\right ) \sqrt{a \cos (c+d x)+a}-\frac{1}{2} d \cos \left (\frac{c}{2}\right ) \text{Si}\left (\frac{d x}{2}\right ) \sec \left (\frac{c}{2}+\frac{d x}{2}\right ) \sqrt{a \cos (c+d x)+a}-\frac{\sqrt{a \cos (c+d x)+a}}{x} \]
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Rubi [A] time = 0.133418, antiderivative size = 110, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 5, integrand size = 18, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.278, Rules used = {3319, 3297, 3303, 3299, 3302} \[ -\frac{1}{2} d \sin \left (\frac{c}{2}\right ) \text{CosIntegral}\left (\frac{d x}{2}\right ) \sec \left (\frac{c}{2}+\frac{d x}{2}\right ) \sqrt{a \cos (c+d x)+a}-\frac{1}{2} d \cos \left (\frac{c}{2}\right ) \text{Si}\left (\frac{d x}{2}\right ) \sec \left (\frac{c}{2}+\frac{d x}{2}\right ) \sqrt{a \cos (c+d x)+a}-\frac{\sqrt{a \cos (c+d x)+a}}{x} \]
Antiderivative was successfully verified.
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Rule 3319
Rule 3297
Rule 3303
Rule 3299
Rule 3302
Rubi steps
\begin{align*} \int \frac{\sqrt{a+a \cos (c+d x)}}{x^2} \, dx &=\left (\sqrt{a+a \cos (c+d x)} \csc \left (\frac{1}{2} \left (c+\frac{\pi }{2}\right )+\frac{\pi }{4}+\frac{d x}{2}\right )\right ) \int \frac{\sin \left (\frac{1}{2} \left (c+\frac{\pi }{2}\right )+\frac{\pi }{4}+\frac{d x}{2}\right )}{x^2} \, dx\\ &=-\frac{\sqrt{a+a \cos (c+d x)}}{x}-\frac{1}{2} \left (d \sqrt{a+a \cos (c+d x)} \csc \left (\frac{1}{2} \left (c+\frac{\pi }{2}\right )+\frac{\pi }{4}+\frac{d x}{2}\right )\right ) \int \frac{\sin \left (\frac{c}{2}+\frac{d x}{2}\right )}{x} \, dx\\ &=-\frac{\sqrt{a+a \cos (c+d x)}}{x}-\frac{1}{2} \left (d \cos \left (\frac{c}{2}\right ) \sqrt{a+a \cos (c+d x)} \csc \left (\frac{1}{2} \left (c+\frac{\pi }{2}\right )+\frac{\pi }{4}+\frac{d x}{2}\right )\right ) \int \frac{\sin \left (\frac{d x}{2}\right )}{x} \, dx-\frac{1}{2} \left (d \sqrt{a+a \cos (c+d x)} \csc \left (\frac{1}{2} \left (c+\frac{\pi }{2}\right )+\frac{\pi }{4}+\frac{d x}{2}\right ) \sin \left (\frac{c}{2}\right )\right ) \int \frac{\cos \left (\frac{d x}{2}\right )}{x} \, dx\\ &=-\frac{\sqrt{a+a \cos (c+d x)}}{x}-\frac{1}{2} d \sqrt{a+a \cos (c+d x)} \text{Ci}\left (\frac{d x}{2}\right ) \sec \left (\frac{c}{2}+\frac{d x}{2}\right ) \sin \left (\frac{c}{2}\right )-\frac{1}{2} d \cos \left (\frac{c}{2}\right ) \sqrt{a+a \cos (c+d x)} \sec \left (\frac{c}{2}+\frac{d x}{2}\right ) \text{Si}\left (\frac{d x}{2}\right )\\ \end{align*}
Mathematica [A] time = 0.162369, size = 75, normalized size = 0.68 \[ -\frac{\sqrt{a (\cos (c+d x)+1)} \left (d x \sin \left (\frac{c}{2}\right ) \text{CosIntegral}\left (\frac{d x}{2}\right ) \sec \left (\frac{1}{2} (c+d x)\right )+d x \cos \left (\frac{c}{2}\right ) \text{Si}\left (\frac{d x}{2}\right ) \sec \left (\frac{1}{2} (c+d x)\right )+2\right )}{2 x} \]
Antiderivative was successfully verified.
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Maple [F] time = 0.215, size = 0, normalized size = 0. \begin{align*} \int{\frac{1}{{x}^{2}}\sqrt{a+\cos \left ( dx+c \right ) a}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [C] time = 2.65022, size = 267, normalized size = 2.43 \begin{align*} -\frac{{\left (4 \,{\left (E_{2}\left (\frac{1}{2} i \, d x\right ) + E_{2}\left (-\frac{1}{2} i \, d x\right )\right )} \cos \left (\frac{1}{2} \, c\right )^{3} + 4 \,{\left (E_{2}\left (\frac{1}{2} i \, d x\right ) + E_{2}\left (-\frac{1}{2} i \, d x\right )\right )} \cos \left (\frac{1}{2} \, c\right ) \sin \left (\frac{1}{2} \, c\right )^{2} -{\left (4 i \, E_{2}\left (\frac{1}{2} i \, d x\right ) - 4 i \, E_{2}\left (-\frac{1}{2} i \, d x\right )\right )} \sin \left (\frac{1}{2} \, c\right )^{3} + 4 \,{\left (E_{2}\left (\frac{1}{2} i \, d x\right ) + E_{2}\left (-\frac{1}{2} i \, d x\right )\right )} \cos \left (\frac{1}{2} \, c\right ) -{\left ({\left (4 i \, E_{2}\left (\frac{1}{2} i \, d x\right ) - 4 i \, E_{2}\left (-\frac{1}{2} i \, d x\right )\right )} \cos \left (\frac{1}{2} \, c\right )^{2} + 4 i \, E_{2}\left (\frac{1}{2} i \, d x\right ) - 4 i \, E_{2}\left (-\frac{1}{2} i \, d x\right )\right )} \sin \left (\frac{1}{2} \, c\right )\right )} \sqrt{a} d}{8 \,{\left ({\left (\sqrt{2} \cos \left (\frac{1}{2} \, c\right )^{2} + \sqrt{2} \sin \left (\frac{1}{2} \, c\right )^{2}\right )}{\left (d x + c\right )} -{\left (\sqrt{2} \cos \left (\frac{1}{2} \, c\right )^{2} + \sqrt{2} \sin \left (\frac{1}{2} \, c\right )^{2}\right )} c\right )}} \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] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{\sqrt{a \left (\cos{\left (c + d x \right )} + 1\right )}}{x^{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{\sqrt{a \cos \left (d x + c\right ) + a}}{x^{2}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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