Integrand size = 44, antiderivative size = 27 \[ \int \frac {-x^2+3 x^2 \log (x)-5 \log (4) \log ^2(x)}{-x^3 \log (x)+(-5+5 x \log (4)) \log ^2(x)} \, dx=-5+\log \left (\frac {4}{-5+\frac {x \left (-x^2+5 \log (4) \log (x)\right )}{\log (x)}}\right ) \]
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\[ \int \frac {-x^2+3 x^2 \log (x)-5 \log (4) \log ^2(x)}{-x^3 \log (x)+(-5+5 x \log (4)) \log ^2(x)} \, dx=\int \frac {-x^2+3 x^2 \log (x)-5 \log (4) \log ^2(x)}{-x^3 \log (x)+(-5+5 x \log (4)) \log ^2(x)} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \frac {x^2-3 x^2 \log (x)+5 \log (4) \log ^2(x)}{\log (x) \left (x^3+5 \log (x)-5 x \log (4) \log (x)\right )} \, dx \\ & = \int \left (-\frac {\log (4)}{-1+x \log (4)}+\frac {1}{x \log (x)}+\frac {5 (-1+x \log (4))}{x \left (x^3+5 \log (x)-5 x \log (4) \log (x)\right )}-\frac {x^2 (-3+2 x \log (4))}{(-1+x \log (4)) \left (x^3+5 \log (x)-5 x \log (4) \log (x)\right )}\right ) \, dx \\ & = -\log (1-x \log (4))+5 \int \frac {-1+x \log (4)}{x \left (x^3+5 \log (x)-5 x \log (4) \log (x)\right )} \, dx+\int \frac {1}{x \log (x)} \, dx-\int \frac {x^2 (-3+2 x \log (4))}{(-1+x \log (4)) \left (x^3+5 \log (x)-5 x \log (4) \log (x)\right )} \, dx \\ & = -\log (1-x \log (4))+5 \int \left (-\frac {1}{x \left (x^3+5 \log (x)-5 x \log (4) \log (x)\right )}-\frac {\log (4)}{-x^3-5 \log (x)+5 x \log (4) \log (x)}\right ) \, dx-\int \left (\frac {2 x^2}{x^3+5 \log (x)-5 x \log (4) \log (x)}+\frac {1}{\log ^2(4) \left (-x^3-5 \log (x)+5 x \log (4) \log (x)\right )}+\frac {x}{\log (4) \left (-x^3-5 \log (x)+5 x \log (4) \log (x)\right )}+\frac {1}{\log ^2(4) (-1+x \log (4)) \left (-x^3-5 \log (x)+5 x \log (4) \log (x)\right )}\right ) \, dx+\text {Subst}\left (\int \frac {1}{x} \, dx,x,\log (x)\right ) \\ & = -\log (1-x \log (4))+\log (\log (x))-2 \int \frac {x^2}{x^3+5 \log (x)-5 x \log (4) \log (x)} \, dx-5 \int \frac {1}{x \left (x^3+5 \log (x)-5 x \log (4) \log (x)\right )} \, dx-\frac {\int \frac {1}{-x^3-5 \log (x)+5 x \log (4) \log (x)} \, dx}{\log ^2(4)}-\frac {\int \frac {1}{(-1+x \log (4)) \left (-x^3-5 \log (x)+5 x \log (4) \log (x)\right )} \, dx}{\log ^2(4)}-\frac {\int \frac {x}{-x^3-5 \log (x)+5 x \log (4) \log (x)} \, dx}{\log (4)}-(5 \log (4)) \int \frac {1}{-x^3-5 \log (x)+5 x \log (4) \log (x)} \, dx \\ \end{align*}
Time = 0.99 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.81 \[ \int \frac {-x^2+3 x^2 \log (x)-5 \log (4) \log ^2(x)}{-x^3 \log (x)+(-5+5 x \log (4)) \log ^2(x)} \, dx=\log (\log (x))-\log \left (x^3+5 \log (x)-5 x \log (4) \log (x)\right ) \]
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Time = 1.15 (sec) , antiderivative size = 23, normalized size of antiderivative = 0.85
method | result | size |
parallelrisch | \(\ln \left (\ln \left (x \right )\right )-\ln \left (-10 x \ln \left (2\right ) \ln \left (x \right )+x^{3}+5 \ln \left (x \right )\right )\) | \(23\) |
default | \(\ln \left (\ln \left (x \right )\right )-\ln \left (10 x \ln \left (2\right ) \ln \left (x \right )-x^{3}-5 \ln \left (x \right )\right )\) | \(25\) |
norman | \(\ln \left (\ln \left (x \right )\right )-\ln \left (10 x \ln \left (2\right ) \ln \left (x \right )-x^{3}-5 \ln \left (x \right )\right )\) | \(25\) |
risch | \(-\ln \left (2 x \ln \left (2\right )-1\right )+\ln \left (\ln \left (x \right )\right )-\ln \left (\ln \left (x \right )-\frac {x^{3}}{5 \left (2 x \ln \left (2\right )-1\right )}\right )\) | \(35\) |
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Time = 0.28 (sec) , antiderivative size = 43, normalized size of antiderivative = 1.59 \[ \int \frac {-x^2+3 x^2 \log (x)-5 \log (4) \log ^2(x)}{-x^3 \log (x)+(-5+5 x \log (4)) \log ^2(x)} \, dx=-\log \left (2 \, x \log \left (2\right ) - 1\right ) - \log \left (-\frac {x^{3} - 5 \, {\left (2 \, x \log \left (2\right ) - 1\right )} \log \left (x\right )}{2 \, x \log \left (2\right ) - 1}\right ) + \log \left (\log \left (x\right )\right ) \]
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Exception generated. \[ \int \frac {-x^2+3 x^2 \log (x)-5 \log (4) \log ^2(x)}{-x^3 \log (x)+(-5+5 x \log (4)) \log ^2(x)} \, dx=\text {Exception raised: PolynomialError} \]
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Time = 0.30 (sec) , antiderivative size = 43, normalized size of antiderivative = 1.59 \[ \int \frac {-x^2+3 x^2 \log (x)-5 \log (4) \log ^2(x)}{-x^3 \log (x)+(-5+5 x \log (4)) \log ^2(x)} \, dx=-\log \left (2 \, x \log \left (2\right ) - 1\right ) - \log \left (-\frac {x^{3} - 5 \, {\left (2 \, x \log \left (2\right ) - 1\right )} \log \left (x\right )}{5 \, {\left (2 \, x \log \left (2\right ) - 1\right )}}\right ) + \log \left (\log \left (x\right )\right ) \]
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Time = 0.29 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.89 \[ \int \frac {-x^2+3 x^2 \log (x)-5 \log (4) \log ^2(x)}{-x^3 \log (x)+(-5+5 x \log (4)) \log ^2(x)} \, dx=-\log \left (-x^{3} + 10 \, x \log \left (2\right ) \log \left (x\right ) - 5 \, \log \left (x\right )\right ) + \log \left (\log \left (x\right )\right ) \]
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Time = 11.96 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.81 \[ \int \frac {-x^2+3 x^2 \log (x)-5 \log (4) \log ^2(x)}{-x^3 \log (x)+(-5+5 x \log (4)) \log ^2(x)} \, dx=\ln \left (\ln \left (x\right )\right )-\ln \left (5\,\ln \left (x\right )+x^3-10\,x\,\ln \left (2\right )\,\ln \left (x\right )\right ) \]
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