Integrand size = 10, antiderivative size = 21 \[ \int \frac {1}{5-6 x+x^2} \, dx=-\frac {1}{4} \log (1-x)+\frac {1}{4} \log (5-x) \]
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Time = 0.00 (sec) , antiderivative size = 21, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.200, Rules used = {630, 31} \[ \int \frac {1}{5-6 x+x^2} \, dx=\frac {1}{4} \log (5-x)-\frac {1}{4} \log (1-x) \]
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Rule 31
Rule 630
Rubi steps \begin{align*} \text {integral}& = \frac {1}{4} \int \frac {1}{-5+x} \, dx-\frac {1}{4} \int \frac {1}{-1+x} \, dx \\ & = -\frac {1}{4} \log (1-x)+\frac {1}{4} \log (5-x) \\ \end{align*}
Time = 0.00 (sec) , antiderivative size = 21, normalized size of antiderivative = 1.00 \[ \int \frac {1}{5-6 x+x^2} \, dx=-\frac {1}{4} \log (1-x)+\frac {1}{4} \log (5-x) \]
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Time = 0.22 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.67
method | result | size |
default | \(-\frac {\ln \left (-1+x \right )}{4}+\frac {\ln \left (x -5\right )}{4}\) | \(14\) |
norman | \(-\frac {\ln \left (-1+x \right )}{4}+\frac {\ln \left (x -5\right )}{4}\) | \(14\) |
risch | \(-\frac {\ln \left (-1+x \right )}{4}+\frac {\ln \left (x -5\right )}{4}\) | \(14\) |
parallelrisch | \(-\frac {\ln \left (-1+x \right )}{4}+\frac {\ln \left (x -5\right )}{4}\) | \(14\) |
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none
Time = 0.25 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.62 \[ \int \frac {1}{5-6 x+x^2} \, dx=-\frac {1}{4} \, \log \left (x - 1\right ) + \frac {1}{4} \, \log \left (x - 5\right ) \]
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Time = 0.04 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.57 \[ \int \frac {1}{5-6 x+x^2} \, dx=\frac {\log {\left (x - 5 \right )}}{4} - \frac {\log {\left (x - 1 \right )}}{4} \]
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none
Time = 0.21 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.62 \[ \int \frac {1}{5-6 x+x^2} \, dx=-\frac {1}{4} \, \log \left (x - 1\right ) + \frac {1}{4} \, \log \left (x - 5\right ) \]
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none
Time = 0.29 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.71 \[ \int \frac {1}{5-6 x+x^2} \, dx=-\frac {1}{4} \, \log \left ({\left | x - 1 \right |}\right ) + \frac {1}{4} \, \log \left ({\left | x - 5 \right |}\right ) \]
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Time = 0.24 (sec) , antiderivative size = 8, normalized size of antiderivative = 0.38 \[ \int \frac {1}{5-6 x+x^2} \, dx=-\frac {\mathrm {atanh}\left (\frac {x}{2}-\frac {3}{2}\right )}{2} \]
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