Integrand size = 16, antiderivative size = 27 \[ \int \frac {1}{x \left (3+4 x^3+x^6\right )} \, dx=\frac {\log (x)}{3}-\frac {1}{6} \log \left (1+x^3\right )+\frac {1}{18} \log \left (3+x^3\right ) \]
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Time = 0.01 (sec) , antiderivative size = 27, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.312, Rules used = {1371, 719, 29, 646, 31} \[ \int \frac {1}{x \left (3+4 x^3+x^6\right )} \, dx=-\frac {1}{6} \log \left (x^3+1\right )+\frac {1}{18} \log \left (x^3+3\right )+\frac {\log (x)}{3} \]
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Rule 29
Rule 31
Rule 646
Rule 719
Rule 1371
Rubi steps \begin{align*} \text {integral}& = \frac {1}{3} \text {Subst}\left (\int \frac {1}{x \left (3+4 x+x^2\right )} \, dx,x,x^3\right ) \\ & = \frac {1}{9} \text {Subst}\left (\int \frac {1}{x} \, dx,x,x^3\right )+\frac {1}{9} \text {Subst}\left (\int \frac {-4-x}{3+4 x+x^2} \, dx,x,x^3\right ) \\ & = \frac {\log (x)}{3}+\frac {1}{18} \text {Subst}\left (\int \frac {1}{3+x} \, dx,x,x^3\right )-\frac {1}{6} \text {Subst}\left (\int \frac {1}{1+x} \, dx,x,x^3\right ) \\ & = \frac {\log (x)}{3}-\frac {1}{6} \log \left (1+x^3\right )+\frac {1}{18} \log \left (3+x^3\right ) \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 27, normalized size of antiderivative = 1.00 \[ \int \frac {1}{x \left (3+4 x^3+x^6\right )} \, dx=\frac {\log (x)}{3}-\frac {1}{6} \log \left (1+x^3\right )+\frac {1}{18} \log \left (3+x^3\right ) \]
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Time = 0.06 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.81
method | result | size |
risch | \(\frac {\ln \left (x \right )}{3}-\frac {\ln \left (x^{3}+1\right )}{6}+\frac {\ln \left (x^{3}+3\right )}{18}\) | \(22\) |
default | \(\frac {\ln \left (x \right )}{3}-\frac {\ln \left (x +1\right )}{6}+\frac {\ln \left (x^{3}+3\right )}{18}-\frac {\ln \left (x^{2}-x +1\right )}{6}\) | \(31\) |
norman | \(\frac {\ln \left (x \right )}{3}-\frac {\ln \left (x +1\right )}{6}+\frac {\ln \left (x^{3}+3\right )}{18}-\frac {\ln \left (x^{2}-x +1\right )}{6}\) | \(31\) |
parallelrisch | \(\frac {\ln \left (x \right )}{3}-\frac {\ln \left (x +1\right )}{6}+\frac {\ln \left (x^{3}+3\right )}{18}-\frac {\ln \left (x^{2}-x +1\right )}{6}\) | \(31\) |
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Time = 0.25 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.78 \[ \int \frac {1}{x \left (3+4 x^3+x^6\right )} \, dx=\frac {1}{18} \, \log \left (x^{3} + 3\right ) - \frac {1}{6} \, \log \left (x^{3} + 1\right ) + \frac {1}{3} \, \log \left (x\right ) \]
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Time = 0.06 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.74 \[ \int \frac {1}{x \left (3+4 x^3+x^6\right )} \, dx=\frac {\log {\left (x \right )}}{3} - \frac {\log {\left (x^{3} + 1 \right )}}{6} + \frac {\log {\left (x^{3} + 3 \right )}}{18} \]
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Time = 0.21 (sec) , antiderivative size = 23, normalized size of antiderivative = 0.85 \[ \int \frac {1}{x \left (3+4 x^3+x^6\right )} \, dx=\frac {1}{18} \, \log \left (x^{3} + 3\right ) - \frac {1}{6} \, \log \left (x^{3} + 1\right ) + \frac {1}{9} \, \log \left (x^{3}\right ) \]
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Time = 0.34 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.89 \[ \int \frac {1}{x \left (3+4 x^3+x^6\right )} \, dx=\frac {1}{18} \, \log \left ({\left | x^{3} + 3 \right |}\right ) - \frac {1}{6} \, \log \left ({\left | x^{3} + 1 \right |}\right ) + \frac {1}{3} \, \log \left ({\left | x \right |}\right ) \]
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Time = 8.39 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.78 \[ \int \frac {1}{x \left (3+4 x^3+x^6\right )} \, dx=\frac {\ln \left (x^3+3\right )}{18}-\frac {\ln \left (x^3+1\right )}{6}+\frac {\ln \left (x\right )}{3} \]
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