Integrand size = 21, antiderivative size = 47 \[ \int \frac {-2+x+3 x^2}{(-1+x)^3 \left (1+x^2\right )} \, dx=-\frac {1}{2 (1-x)^2}+\frac {5}{2 (1-x)}-\arctan (x)-\frac {3}{2} \log (1-x)+\frac {3}{4} \log \left (1+x^2\right ) \]
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Time = 0.03 (sec) , antiderivative size = 47, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.190, Rules used = {1643, 649, 209, 266} \[ \int \frac {-2+x+3 x^2}{(-1+x)^3 \left (1+x^2\right )} \, dx=-\arctan (x)+\frac {3}{4} \log \left (x^2+1\right )+\frac {5}{2 (1-x)}-\frac {1}{2 (1-x)^2}-\frac {3}{2} \log (1-x) \]
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Rule 209
Rule 266
Rule 649
Rule 1643
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {1}{(-1+x)^3}+\frac {5}{2 (-1+x)^2}-\frac {3}{2 (-1+x)}+\frac {-2+3 x}{2 \left (1+x^2\right )}\right ) \, dx \\ & = -\frac {1}{2 (1-x)^2}+\frac {5}{2 (1-x)}-\frac {3}{2} \log (1-x)+\frac {1}{2} \int \frac {-2+3 x}{1+x^2} \, dx \\ & = -\frac {1}{2 (1-x)^2}+\frac {5}{2 (1-x)}-\frac {3}{2} \log (1-x)+\frac {3}{2} \int \frac {x}{1+x^2} \, dx-\int \frac {1}{1+x^2} \, dx \\ & = -\frac {1}{2 (1-x)^2}+\frac {5}{2 (1-x)}-\arctan (x)-\frac {3}{2} \log (1-x)+\frac {3}{4} \log \left (1+x^2\right ) \\ \end{align*}
Time = 0.03 (sec) , antiderivative size = 37, normalized size of antiderivative = 0.79 \[ \int \frac {-2+x+3 x^2}{(-1+x)^3 \left (1+x^2\right )} \, dx=\frac {1}{4} \left (-\frac {2}{(-1+x)^2}-\frac {10}{-1+x}-4 \arctan (x)-6 \log (-1+x)+3 \log \left (1+x^2\right )\right ) \]
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Time = 0.25 (sec) , antiderivative size = 31, normalized size of antiderivative = 0.66
method | result | size |
risch | \(\frac {-\frac {5 x}{2}+2}{\left (-1+x \right )^{2}}+\frac {3 \ln \left (x^{2}+1\right )}{4}-\arctan \left (x \right )-\frac {3 \ln \left (-1+x \right )}{2}\) | \(31\) |
default | \(-\frac {1}{2 \left (-1+x \right )^{2}}-\frac {5}{2 \left (-1+x \right )}-\frac {3 \ln \left (-1+x \right )}{2}+\frac {3 \ln \left (x^{2}+1\right )}{4}-\arctan \left (x \right )\) | \(34\) |
parallelrisch | \(-\frac {-2 i \ln \left (x -i\right ) x^{2}+2 i \ln \left (x +i\right )+6 \ln \left (-1+x \right ) x^{2}+2 i \ln \left (x +i\right ) x^{2}-3 x^{2} \ln \left (x -i\right )+4 i \ln \left (x -i\right ) x -3 \ln \left (x +i\right ) x^{2}-3-12 \ln \left (-1+x \right ) x -2 i \ln \left (x -i\right )+6 \ln \left (x -i\right ) x -4 i \ln \left (x +i\right ) x +6 \ln \left (x +i\right ) x +5 x^{2}+6 \ln \left (-1+x \right )-3 \ln \left (x -i\right )-3 \ln \left (x +i\right )}{4 \left (-1+x \right )^{2}}\) | \(143\) |
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Time = 0.25 (sec) , antiderivative size = 59, normalized size of antiderivative = 1.26 \[ \int \frac {-2+x+3 x^2}{(-1+x)^3 \left (1+x^2\right )} \, dx=-\frac {4 \, {\left (x^{2} - 2 \, x + 1\right )} \arctan \left (x\right ) - 3 \, {\left (x^{2} - 2 \, x + 1\right )} \log \left (x^{2} + 1\right ) + 6 \, {\left (x^{2} - 2 \, x + 1\right )} \log \left (x - 1\right ) + 10 \, x - 8}{4 \, {\left (x^{2} - 2 \, x + 1\right )}} \]
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Time = 0.08 (sec) , antiderivative size = 36, normalized size of antiderivative = 0.77 \[ \int \frac {-2+x+3 x^2}{(-1+x)^3 \left (1+x^2\right )} \, dx=\frac {4 - 5 x}{2 x^{2} - 4 x + 2} - \frac {3 \log {\left (x - 1 \right )}}{2} + \frac {3 \log {\left (x^{2} + 1 \right )}}{4} - \operatorname {atan}{\left (x \right )} \]
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Time = 0.30 (sec) , antiderivative size = 36, normalized size of antiderivative = 0.77 \[ \int \frac {-2+x+3 x^2}{(-1+x)^3 \left (1+x^2\right )} \, dx=-\frac {5 \, x - 4}{2 \, {\left (x^{2} - 2 \, x + 1\right )}} - \arctan \left (x\right ) + \frac {3}{4} \, \log \left (x^{2} + 1\right ) - \frac {3}{2} \, \log \left (x - 1\right ) \]
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Time = 0.28 (sec) , antiderivative size = 32, normalized size of antiderivative = 0.68 \[ \int \frac {-2+x+3 x^2}{(-1+x)^3 \left (1+x^2\right )} \, dx=-\frac {5 \, x - 4}{2 \, {\left (x - 1\right )}^{2}} - \arctan \left (x\right ) + \frac {3}{4} \, \log \left (x^{2} + 1\right ) - \frac {3}{2} \, \log \left ({\left | x - 1 \right |}\right ) \]
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Time = 0.05 (sec) , antiderivative size = 42, normalized size of antiderivative = 0.89 \[ \int \frac {-2+x+3 x^2}{(-1+x)^3 \left (1+x^2\right )} \, dx=-\frac {3\,\ln \left (x-1\right )}{2}-\frac {\frac {5\,x}{2}-2}{x^2-2\,x+1}+\ln \left (x-\mathrm {i}\right )\,\left (\frac {3}{4}+\frac {1}{2}{}\mathrm {i}\right )+\ln \left (x+1{}\mathrm {i}\right )\,\left (\frac {3}{4}-\frac {1}{2}{}\mathrm {i}\right ) \]
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