Integrand size = 24, antiderivative size = 23 \[ \int \frac {-1+x^4}{\left (1+x^4\right ) \sqrt [4]{x^2+x^6}} \, dx=-\frac {2 \left (x^2+x^6\right )^{3/4}}{x \left (1+x^4\right )} \]
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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} \[ \int \frac {-1+x^4}{\left (1+x^4\right ) \sqrt [4]{x^2+x^6}} \, dx=-\frac {2 x}{\sqrt [4]{x^6+x^2}} \]
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Rule 460
Rule 2081
Rubi steps \begin{align*} \text {integral}& = \frac {\left (\sqrt {x} \sqrt [4]{1+x^4}\right ) \int \frac {-1+x^4}{\sqrt {x} \left (1+x^4\right )^{5/4}} \, dx}{\sqrt [4]{x^2+x^6}} \\ & = -\frac {2 x}{\sqrt [4]{x^2+x^6}} \\ \end{align*}
Time = 0.86 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.61 \[ \int \frac {-1+x^4}{\left (1+x^4\right ) \sqrt [4]{x^2+x^6}} \, dx=-\frac {2 x}{\sqrt [4]{x^2+x^6}} \]
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Time = 1.08 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.57
method | result | size |
gosper | \(-\frac {2 x}{\left (x^{6}+x^{2}\right )^{\frac {1}{4}}}\) | \(13\) |
risch | \(-\frac {2 x}{\left (x^{2} \left (x^{4}+1\right )\right )^{\frac {1}{4}}}\) | \(15\) |
pseudoelliptic | \(-\frac {2 x}{\left (x^{2} \left (x^{4}+1\right )\right )^{\frac {1}{4}}}\) | \(15\) |
trager | \(-\frac {2 \left (x^{6}+x^{2}\right )^{\frac {3}{4}}}{x \left (x^{4}+1\right )}\) | \(22\) |
meijerg | \(-2 \sqrt {x}\, \operatorname {hypergeom}\left (\left [\frac {1}{8}, \frac {5}{4}\right ], \left [\frac {9}{8}\right ], -x^{4}\right )+\frac {2 x^{\frac {9}{2}} \operatorname {hypergeom}\left (\left [\frac {9}{8}, \frac {5}{4}\right ], \left [\frac {17}{8}\right ], -x^{4}\right )}{9}\) | \(34\) |
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none
Time = 0.24 (sec) , antiderivative size = 18, normalized size of antiderivative = 0.78 \[ \int \frac {-1+x^4}{\left (1+x^4\right ) \sqrt [4]{x^2+x^6}} \, dx=-\frac {2 \, {\left (x^{6} + x^{2}\right )}^{\frac {3}{4}}}{x^{5} + x} \]
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\[ \int \frac {-1+x^4}{\left (1+x^4\right ) \sqrt [4]{x^2+x^6}} \, dx=\int \frac {\left (x - 1\right ) \left (x + 1\right ) \left (x^{2} + 1\right )}{\sqrt [4]{x^{2} \left (x^{4} + 1\right )} \left (x^{4} + 1\right )}\, dx \]
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\[ \int \frac {-1+x^4}{\left (1+x^4\right ) \sqrt [4]{x^2+x^6}} \, dx=\int { \frac {x^{4} - 1}{{\left (x^{6} + x^{2}\right )}^{\frac {1}{4}} {\left (x^{4} + 1\right )}} \,d x } \]
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\[ \int \frac {-1+x^4}{\left (1+x^4\right ) \sqrt [4]{x^2+x^6}} \, dx=\int { \frac {x^{4} - 1}{{\left (x^{6} + x^{2}\right )}^{\frac {1}{4}} {\left (x^{4} + 1\right )}} \,d x } \]
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Time = 5.47 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.91 \[ \int \frac {-1+x^4}{\left (1+x^4\right ) \sqrt [4]{x^2+x^6}} \, dx=-\frac {2\,{\left (x^6+x^2\right )}^{3/4}}{x\,\left (x^4+1\right )} \]
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