Integrand size = 33, antiderivative size = 43 \[ \int \frac {-1+4 \cos (x)+5 \cos ^2(x)}{-1-4 \cos (x)-3 \cos ^2(x)+4 \cos ^3(x)} \, dx=x-2 \arctan \left (\frac {\sin (x)}{3+\cos (x)}\right )-2 \arctan \left (\frac {3 \sin (x)+7 \cos (x) \sin (x)}{1+2 \cos (x)+5 \cos ^2(x)}\right ) \]
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\[ \int \frac {-1+4 \cos (x)+5 \cos ^2(x)}{-1-4 \cos (x)-3 \cos ^2(x)+4 \cos ^3(x)} \, dx=\int \frac {-1+4 \cos (x)+5 \cos ^2(x)}{-1-4 \cos (x)-3 \cos ^2(x)+4 \cos ^3(x)} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {1}{1+4 \cos (x)+3 \cos ^2(x)-4 \cos ^3(x)}+\frac {4 \cos (x)}{-1-4 \cos (x)-3 \cos ^2(x)+4 \cos ^3(x)}+\frac {5 \cos ^2(x)}{-1-4 \cos (x)-3 \cos ^2(x)+4 \cos ^3(x)}\right ) \, dx \\ & = 4 \int \frac {\cos (x)}{-1-4 \cos (x)-3 \cos ^2(x)+4 \cos ^3(x)} \, dx+5 \int \frac {\cos ^2(x)}{-1-4 \cos (x)-3 \cos ^2(x)+4 \cos ^3(x)} \, dx+\int \frac {1}{1+4 \cos (x)+3 \cos ^2(x)-4 \cos ^3(x)} \, dx \\ \end{align*}
Time = 4.77 (sec) , antiderivative size = 61, normalized size of antiderivative = 1.42 \[ \int \frac {-1+4 \cos (x)+5 \cos ^2(x)}{-1-4 \cos (x)-3 \cos ^2(x)+4 \cos ^3(x)} \, dx=\arctan \left (\frac {1}{4} \sec ^3\left (\frac {x}{2}\right ) \left (\sin \left (\frac {x}{2}\right )-3 \sin \left (\frac {3 x}{2}\right )\right )\right )-\arctan \left (\frac {1}{4} \sec ^3\left (\frac {x}{2}\right ) \left (-\sin \left (\frac {x}{2}\right )+3 \sin \left (\frac {3 x}{2}\right )\right )\right ) \]
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Time = 0.59 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.40
method | result | size |
default | \(2 \arctan \left (\tan ^{3}\left (\frac {x}{2}\right )-2 \tan \left (\frac {x}{2}\right )\right )\) | \(17\) |
parallelrisch | \(-i \left (\ln \left (\tan ^{3}\left (\frac {x}{2}\right )-i-2 \tan \left (\frac {x}{2}\right )\right )-\ln \left (\tan ^{3}\left (\frac {x}{2}\right )+i-2 \tan \left (\frac {x}{2}\right )\right )\right )\) | \(39\) |
risch | \(i \ln \left ({\mathrm e}^{3 i x}+\frac {{\mathrm e}^{2 i x}}{2}+{\mathrm e}^{i x}-\frac {1}{2}\right )-i \ln \left ({\mathrm e}^{3 i x}-2 \,{\mathrm e}^{2 i x}-{\mathrm e}^{i x}-2\right )\) | \(50\) |
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Time = 0.27 (sec) , antiderivative size = 31, normalized size of antiderivative = 0.72 \[ \int \frac {-1+4 \cos (x)+5 \cos ^2(x)}{-1-4 \cos (x)-3 \cos ^2(x)+4 \cos ^3(x)} \, dx=\arctan \left (\frac {5 \, \cos \left (x\right )^{3} - \cos \left (x\right )}{{\left (3 \, \cos \left (x\right )^{2} + 4 \, \cos \left (x\right ) + 1\right )} \sin \left (x\right )}\right ) \]
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Timed out. \[ \int \frac {-1+4 \cos (x)+5 \cos ^2(x)}{-1-4 \cos (x)-3 \cos ^2(x)+4 \cos ^3(x)} \, dx=\text {Timed out} \]
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Time = 1.61 (sec) , antiderivative size = 63, normalized size of antiderivative = 1.47 \[ \int \frac {-1+4 \cos (x)+5 \cos ^2(x)}{-1-4 \cos (x)-3 \cos ^2(x)+4 \cos ^3(x)} \, dx=-\arctan \left (\sin \left (3 \, x\right ) + \frac {1}{2} \, \sin \left (2 \, x\right ) + \sin \left (x\right ), \cos \left (3 \, x\right ) + \frac {1}{2} \, \cos \left (2 \, x\right ) + \cos \left (x\right ) - \frac {1}{2}\right ) + \arctan \left (\sin \left (3 \, x\right ) - 2 \, \sin \left (2 \, x\right ) - \sin \left (x\right ), \cos \left (3 \, x\right ) - 2 \, \cos \left (2 \, x\right ) - \cos \left (x\right ) - 2\right ) \]
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Time = 0.29 (sec) , antiderivative size = 18, normalized size of antiderivative = 0.42 \[ \int \frac {-1+4 \cos (x)+5 \cos ^2(x)}{-1-4 \cos (x)-3 \cos ^2(x)+4 \cos ^3(x)} \, dx=-2 \, \arctan \left (-\tan \left (\frac {1}{2} \, x\right )^{3} + 2 \, \tan \left (\frac {1}{2} \, x\right )\right ) \]
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Time = 0.37 (sec) , antiderivative size = 27, normalized size of antiderivative = 0.63 \[ \int \frac {-1+4 \cos (x)+5 \cos ^2(x)}{-1-4 \cos (x)-3 \cos ^2(x)+4 \cos ^3(x)} \, dx=x-2\,\mathrm {atan}\left (2\,\mathrm {tan}\left (\frac {x}{2}\right )-{\mathrm {tan}\left (\frac {x}{2}\right )}^3\right )-2\,\mathrm {atan}\left (\mathrm {tan}\left (\frac {x}{2}\right )\right ) \]
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