Integrand size = 24, antiderivative size = 23 \[ \int \frac {-1+x^2}{\left (1+x^2\right ) \sqrt [3]{x^2+x^4}} \, dx=-\frac {3 \left (x^2+x^4\right )^{2/3}}{x \left (1+x^2\right )} \]
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Time = 0.05 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.61, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.083, Rules used = {2081, 460} \[ \int \frac {-1+x^2}{\left (1+x^2\right ) \sqrt [3]{x^2+x^4}} \, dx=-\frac {3 x}{\sqrt [3]{x^4+x^2}} \]
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Rule 460
Rule 2081
Rubi steps \begin{align*} \text {integral}& = \frac {\left (x^{2/3} \sqrt [3]{1+x^2}\right ) \int \frac {-1+x^2}{x^{2/3} \left (1+x^2\right )^{4/3}} \, dx}{\sqrt [3]{x^2+x^4}} \\ & = -\frac {3 x}{\sqrt [3]{x^2+x^4}} \\ \end{align*}
Time = 0.32 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.61 \[ \int \frac {-1+x^2}{\left (1+x^2\right ) \sqrt [3]{x^2+x^4}} \, dx=-\frac {3 x}{\sqrt [3]{x^2+x^4}} \]
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Time = 1.03 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.57
method | result | size |
gosper | \(-\frac {3 x}{\left (x^{4}+x^{2}\right )^{\frac {1}{3}}}\) | \(13\) |
risch | \(-\frac {3 x}{\left (x^{2} \left (x^{2}+1\right )\right )^{\frac {1}{3}}}\) | \(15\) |
pseudoelliptic | \(-\frac {3 x}{\left (x^{2} \left (x^{2}+1\right )\right )^{\frac {1}{3}}}\) | \(15\) |
trager | \(-\frac {3 \left (x^{4}+x^{2}\right )^{\frac {2}{3}}}{x \left (x^{2}+1\right )}\) | \(22\) |
meijerg | \(-3 x^{\frac {1}{3}} \operatorname {hypergeom}\left (\left [\frac {1}{6}, \frac {4}{3}\right ], \left [\frac {7}{6}\right ], -x^{2}\right )+\frac {3 x^{\frac {7}{3}} \operatorname {hypergeom}\left (\left [\frac {7}{6}, \frac {4}{3}\right ], \left [\frac {13}{6}\right ], -x^{2}\right )}{7}\) | \(34\) |
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none
Time = 0.24 (sec) , antiderivative size = 18, normalized size of antiderivative = 0.78 \[ \int \frac {-1+x^2}{\left (1+x^2\right ) \sqrt [3]{x^2+x^4}} \, dx=-\frac {3 \, {\left (x^{4} + x^{2}\right )}^{\frac {2}{3}}}{x^{3} + x} \]
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\[ \int \frac {-1+x^2}{\left (1+x^2\right ) \sqrt [3]{x^2+x^4}} \, dx=\int \frac {\left (x - 1\right ) \left (x + 1\right )}{\sqrt [3]{x^{2} \left (x^{2} + 1\right )} \left (x^{2} + 1\right )}\, dx \]
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\[ \int \frac {-1+x^2}{\left (1+x^2\right ) \sqrt [3]{x^2+x^4}} \, dx=\int { \frac {x^{2} - 1}{{\left (x^{4} + x^{2}\right )}^{\frac {1}{3}} {\left (x^{2} + 1\right )}} \,d x } \]
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\[ \int \frac {-1+x^2}{\left (1+x^2\right ) \sqrt [3]{x^2+x^4}} \, dx=\int { \frac {x^{2} - 1}{{\left (x^{4} + x^{2}\right )}^{\frac {1}{3}} {\left (x^{2} + 1\right )}} \,d x } \]
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Time = 5.36 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.91 \[ \int \frac {-1+x^2}{\left (1+x^2\right ) \sqrt [3]{x^2+x^4}} \, dx=-\frac {3\,{\left (x^4+x^2\right )}^{2/3}}{x\,\left (x^2+1\right )} \]
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