Integrand size = 31, antiderivative size = 13 \[ \int \frac {32-8 x+(-8+8 x) \log (-1+x)}{-16+24 x-9 x^2+x^3} \, dx=\frac {8 \log (-1+x)}{4-x} \]
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Time = 0.05 (sec) , antiderivative size = 13, normalized size of antiderivative = 1.00, number of steps used = 9, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.161, Rules used = {6874, 630, 31, 2442, 36} \[ \int \frac {32-8 x+(-8+8 x) \log (-1+x)}{-16+24 x-9 x^2+x^3} \, dx=\frac {8 \log (x-1)}{4-x} \]
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Rule 31
Rule 36
Rule 630
Rule 2442
Rule 6874
Rubi steps \begin{align*} \text {integral}& = \int \left (-\frac {8}{4-5 x+x^2}+\frac {8 \log (-1+x)}{(-4+x)^2}\right ) \, dx \\ & = -\left (8 \int \frac {1}{4-5 x+x^2} \, dx\right )+8 \int \frac {\log (-1+x)}{(-4+x)^2} \, dx \\ & = \frac {8 \log (-1+x)}{4-x}-\frac {8}{3} \int \frac {1}{-4+x} \, dx+\frac {8}{3} \int \frac {1}{-1+x} \, dx+8 \int \frac {1}{(-4+x) (-1+x)} \, dx \\ & = \frac {8}{3} \log (1-x)-\frac {8}{3} \log (4-x)+\frac {8 \log (-1+x)}{4-x}+\frac {8}{3} \int \frac {1}{-4+x} \, dx-\frac {8}{3} \int \frac {1}{-1+x} \, dx \\ & = \frac {8 \log (-1+x)}{4-x} \\ \end{align*}
Leaf count is larger than twice the leaf count of optimal. \(42\) vs. \(2(13)=26\).
Time = 0.05 (sec) , antiderivative size = 42, normalized size of antiderivative = 3.23 \[ \int \frac {32-8 x+(-8+8 x) \log (-1+x)}{-16+24 x-9 x^2+x^3} \, dx=\frac {8}{3} \left (2 \text {arctanh}\left (\frac {5}{3}-\frac {2 x}{3}\right )+\log (1-x)-\log (4-x)-\frac {3 \log (-1+x)}{-4+x}\right ) \]
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Time = 0.26 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.92
method | result | size |
norman | \(-\frac {8 \ln \left (-1+x \right )}{x -4}\) | \(12\) |
risch | \(-\frac {8 \ln \left (-1+x \right )}{x -4}\) | \(12\) |
parallelrisch | \(-\frac {8 \ln \left (-1+x \right )}{x -4}\) | \(12\) |
derivativedivides | \(-\frac {8 \ln \left (-1+x \right ) \left (-1+x \right )}{3 \left (x -4\right )}+\frac {8 \ln \left (-1+x \right )}{3}\) | \(22\) |
default | \(-\frac {8 \ln \left (-1+x \right ) \left (-1+x \right )}{3 \left (x -4\right )}+\frac {8 \ln \left (-1+x \right )}{3}\) | \(22\) |
parts | \(-\frac {8 \ln \left (-1+x \right ) \left (-1+x \right )}{3 \left (x -4\right )}+\frac {8 \ln \left (-1+x \right )}{3}\) | \(22\) |
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none
Time = 0.26 (sec) , antiderivative size = 11, normalized size of antiderivative = 0.85 \[ \int \frac {32-8 x+(-8+8 x) \log (-1+x)}{-16+24 x-9 x^2+x^3} \, dx=-\frac {8 \, \log \left (x - 1\right )}{x - 4} \]
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Time = 0.06 (sec) , antiderivative size = 10, normalized size of antiderivative = 0.77 \[ \int \frac {32-8 x+(-8+8 x) \log (-1+x)}{-16+24 x-9 x^2+x^3} \, dx=- \frac {8 \log {\left (x - 1 \right )}}{x - 4} \]
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Leaf count of result is larger than twice the leaf count of optimal. 33 vs. \(2 (11) = 22\).
Time = 0.25 (sec) , antiderivative size = 33, normalized size of antiderivative = 2.54 \[ \int \frac {32-8 x+(-8+8 x) \log (-1+x)}{-16+24 x-9 x^2+x^3} \, dx=-\frac {8 \, {\left ({\left (4 \, x - 7\right )} \log \left (x - 1\right ) - 12\right )}}{9 \, {\left (x - 4\right )}} - \frac {32}{3 \, {\left (x - 4\right )}} + \frac {32}{9} \, \log \left (x - 1\right ) \]
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none
Time = 0.25 (sec) , antiderivative size = 11, normalized size of antiderivative = 0.85 \[ \int \frac {32-8 x+(-8+8 x) \log (-1+x)}{-16+24 x-9 x^2+x^3} \, dx=-\frac {8 \, \log \left (x - 1\right )}{x - 4} \]
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Time = 0.19 (sec) , antiderivative size = 11, normalized size of antiderivative = 0.85 \[ \int \frac {32-8 x+(-8+8 x) \log (-1+x)}{-16+24 x-9 x^2+x^3} \, dx=-\frac {8\,\ln \left (x-1\right )}{x-4} \]
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