Integrand size = 28, antiderivative size = 20 \[ \int \frac {125}{1-10 x+25 x^2+(8-40 x) \log (16)+16 \log ^2(16)} \, dx=\frac {25 x}{x-x (x+4 (x-\log (16)))} \]
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Time = 0.01 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.65, number of steps used = 4, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.143, Rules used = {12, 2006, 27, 32} \[ \int \frac {125}{1-10 x+25 x^2+(8-40 x) \log (16)+16 \log ^2(16)} \, dx=\frac {25}{-5 x+1+4 \log (16)} \]
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Rule 12
Rule 27
Rule 32
Rule 2006
Rubi steps \begin{align*} \text {integral}& = 125 \int \frac {1}{1-10 x+25 x^2+(8-40 x) \log (16)+16 \log ^2(16)} \, dx \\ & = 125 \int \frac {1}{25 x^2-10 x (1+4 \log (16))+(1+4 \log (16))^2} \, dx \\ & = 125 \int \frac {1}{(-1+5 x-4 \log (16))^2} \, dx \\ & = \frac {25}{1-5 x+4 \log (16)} \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.65 \[ \int \frac {125}{1-10 x+25 x^2+(8-40 x) \log (16)+16 \log ^2(16)} \, dx=\frac {25}{1-5 x+4 \log (16)} \]
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Time = 3.43 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.60
method | result | size |
risch | \(\frac {25}{16 \left (\ln \left (2\right )-\frac {5 x}{16}+\frac {1}{16}\right )}\) | \(12\) |
gosper | \(\frac {25}{16 \ln \left (2\right )-5 x +1}\) | \(14\) |
default | \(-\frac {25}{-16 \ln \left (2\right )+5 x -1}\) | \(14\) |
norman | \(\frac {25}{16 \ln \left (2\right )-5 x +1}\) | \(14\) |
parallelrisch | \(\frac {25}{16 \ln \left (2\right )-5 x +1}\) | \(14\) |
meijerg | \(-\frac {25 x}{\left (-\frac {16 \ln \left (2\right )}{5}-\frac {1}{5}\right ) \left (16 \ln \left (2\right )+1\right ) \left (1-\frac {5 x}{16 \ln \left (2\right )+1}\right )}\) | \(35\) |
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Time = 0.24 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.65 \[ \int \frac {125}{1-10 x+25 x^2+(8-40 x) \log (16)+16 \log ^2(16)} \, dx=-\frac {25}{5 \, x - 16 \, \log \left (2\right ) - 1} \]
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Time = 0.10 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.60 \[ \int \frac {125}{1-10 x+25 x^2+(8-40 x) \log (16)+16 \log ^2(16)} \, dx=- \frac {125}{25 x - 80 \log {\left (2 \right )} - 5} \]
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Time = 0.18 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.65 \[ \int \frac {125}{1-10 x+25 x^2+(8-40 x) \log (16)+16 \log ^2(16)} \, dx=-\frac {25}{5 \, x - 16 \, \log \left (2\right ) - 1} \]
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Time = 0.27 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.65 \[ \int \frac {125}{1-10 x+25 x^2+(8-40 x) \log (16)+16 \log ^2(16)} \, dx=-\frac {25}{5 \, x - 16 \, \log \left (2\right ) - 1} \]
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Time = 0.08 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.65 \[ \int \frac {125}{1-10 x+25 x^2+(8-40 x) \log (16)+16 \log ^2(16)} \, dx=\frac {25}{16\,\ln \left (2\right )-5\,x+1} \]
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