Integrand size = 16, antiderivative size = 37 \[ \int \frac {-1+x}{3-4 x+3 x^2} \, dx=\frac {\arctan \left (\frac {2-3 x}{\sqrt {5}}\right )}{3 \sqrt {5}}+\frac {1}{6} \log \left (3-4 x+3 x^2\right ) \]
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Time = 0.01 (sec) , antiderivative size = 37, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.250, Rules used = {648, 632, 210, 642} \[ \int \frac {-1+x}{3-4 x+3 x^2} \, dx=\frac {\arctan \left (\frac {2-3 x}{\sqrt {5}}\right )}{3 \sqrt {5}}+\frac {1}{6} \log \left (3 x^2-4 x+3\right ) \]
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Rule 210
Rule 632
Rule 642
Rule 648
Rubi steps \begin{align*} \text {integral}& = \frac {1}{6} \int \frac {-4+6 x}{3-4 x+3 x^2} \, dx-\frac {1}{3} \int \frac {1}{3-4 x+3 x^2} \, dx \\ & = \frac {1}{6} \log \left (3-4 x+3 x^2\right )+\frac {2}{3} \text {Subst}\left (\int \frac {1}{-20-x^2} \, dx,x,-4+6 x\right ) \\ & = \frac {\tan ^{-1}\left (\frac {2-3 x}{\sqrt {5}}\right )}{3 \sqrt {5}}+\frac {1}{6} \log \left (3-4 x+3 x^2\right ) \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 37, normalized size of antiderivative = 1.00 \[ \int \frac {-1+x}{3-4 x+3 x^2} \, dx=-\frac {\arctan \left (\frac {-2+3 x}{\sqrt {5}}\right )}{3 \sqrt {5}}+\frac {1}{6} \log \left (3-4 x+3 x^2\right ) \]
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Time = 1.36 (sec) , antiderivative size = 31, normalized size of antiderivative = 0.84
method | result | size |
default | \(\frac {\ln \left (3 x^{2}-4 x +3\right )}{6}-\frac {\sqrt {5}\, \arctan \left (\frac {\left (6 x -4\right ) \sqrt {5}}{10}\right )}{15}\) | \(31\) |
risch | \(\frac {\ln \left (9 x^{2}-12 x +9\right )}{6}-\frac {\sqrt {5}\, \arctan \left (\frac {\left (3 x -2\right ) \sqrt {5}}{5}\right )}{15}\) | \(31\) |
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Time = 0.26 (sec) , antiderivative size = 30, normalized size of antiderivative = 0.81 \[ \int \frac {-1+x}{3-4 x+3 x^2} \, dx=-\frac {1}{15} \, \sqrt {5} \arctan \left (\frac {1}{5} \, \sqrt {5} {\left (3 \, x - 2\right )}\right ) + \frac {1}{6} \, \log \left (3 \, x^{2} - 4 \, x + 3\right ) \]
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Time = 0.05 (sec) , antiderivative size = 39, normalized size of antiderivative = 1.05 \[ \int \frac {-1+x}{3-4 x+3 x^2} \, dx=\frac {\log {\left (x^{2} - \frac {4 x}{3} + 1 \right )}}{6} - \frac {\sqrt {5} \operatorname {atan}{\left (\frac {3 \sqrt {5} x}{5} - \frac {2 \sqrt {5}}{5} \right )}}{15} \]
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Time = 0.27 (sec) , antiderivative size = 30, normalized size of antiderivative = 0.81 \[ \int \frac {-1+x}{3-4 x+3 x^2} \, dx=-\frac {1}{15} \, \sqrt {5} \arctan \left (\frac {1}{5} \, \sqrt {5} {\left (3 \, x - 2\right )}\right ) + \frac {1}{6} \, \log \left (3 \, x^{2} - 4 \, x + 3\right ) \]
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Time = 0.27 (sec) , antiderivative size = 30, normalized size of antiderivative = 0.81 \[ \int \frac {-1+x}{3-4 x+3 x^2} \, dx=-\frac {1}{15} \, \sqrt {5} \arctan \left (\frac {1}{5} \, \sqrt {5} {\left (3 \, x - 2\right )}\right ) + \frac {1}{6} \, \log \left (3 \, x^{2} - 4 \, x + 3\right ) \]
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Time = 0.03 (sec) , antiderivative size = 30, normalized size of antiderivative = 0.81 \[ \int \frac {-1+x}{3-4 x+3 x^2} \, dx=\frac {\ln \left (x^2-\frac {4\,x}{3}+1\right )}{6}-\frac {\sqrt {5}\,\mathrm {atan}\left (\frac {3\,\sqrt {5}\,x}{5}-\frac {2\,\sqrt {5}}{5}\right )}{15} \]
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