Integrand size = 38, antiderivative size = 95 \[ \int \frac {\left (-2+x^6\right ) \left (1-x^4+x^6\right )}{x^4 \sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx=\frac {2 \left (1+x^6\right )^{3/4}}{3 x^3}+\sqrt {2} \arctan \left (\frac {\sqrt {2} x \sqrt [4]{1+x^6}}{-x^2+\sqrt {1+x^6}}\right )+\sqrt {2} \text {arctanh}\left (\frac {\sqrt {2} x \sqrt [4]{1+x^6}}{x^2+\sqrt {1+x^6}}\right ) \]
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\[ \int \frac {\left (-2+x^6\right ) \left (1-x^4+x^6\right )}{x^4 \sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx=\int \frac {\left (-2+x^6\right ) \left (1-x^4+x^6\right )}{x^4 \sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \left (-\frac {2}{\sqrt [4]{1+x^6}}-\frac {2}{x^4 \sqrt [4]{1+x^6}}+\frac {x^2}{\sqrt [4]{1+x^6}}+\frac {2 \left (3+x^4\right )}{\sqrt [4]{1+x^6} \left (1+x^4+x^6\right )}\right ) \, dx \\ & = -\left (2 \int \frac {1}{\sqrt [4]{1+x^6}} \, dx\right )-2 \int \frac {1}{x^4 \sqrt [4]{1+x^6}} \, dx+2 \int \frac {3+x^4}{\sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx+\int \frac {x^2}{\sqrt [4]{1+x^6}} \, dx \\ & = -2 x \operatorname {Hypergeometric2F1}\left (\frac {1}{6},\frac {1}{4},\frac {7}{6},-x^6\right )+\frac {1}{3} \text {Subst}\left (\int \frac {1}{\sqrt [4]{1+x^2}} \, dx,x,x^3\right )-\frac {2}{3} \text {Subst}\left (\int \frac {1}{x^2 \sqrt [4]{1+x^2}} \, dx,x,x^3\right )+2 \int \left (\frac {3}{\sqrt [4]{1+x^6} \left (1+x^4+x^6\right )}+\frac {x^4}{\sqrt [4]{1+x^6} \left (1+x^4+x^6\right )}\right ) \, dx \\ & = \frac {2 x^3}{3 \sqrt [4]{1+x^6}}+\frac {2 \left (1+x^6\right )^{3/4}}{3 x^3}-2 x \operatorname {Hypergeometric2F1}\left (\frac {1}{6},\frac {1}{4},\frac {7}{6},-x^6\right )-\frac {1}{3} \text {Subst}\left (\int \frac {1}{\left (1+x^2\right )^{5/4}} \, dx,x,x^3\right )-\frac {1}{3} \text {Subst}\left (\int \frac {1}{\sqrt [4]{1+x^2}} \, dx,x,x^3\right )+2 \int \frac {x^4}{\sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx+6 \int \frac {1}{\sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx \\ & = \frac {2 \left (1+x^6\right )^{3/4}}{3 x^3}-\frac {2}{3} E\left (\left .\frac {\arctan \left (x^3\right )}{2}\right |2\right )-2 x \operatorname {Hypergeometric2F1}\left (\frac {1}{6},\frac {1}{4},\frac {7}{6},-x^6\right )+\frac {1}{3} \text {Subst}\left (\int \frac {1}{\left (1+x^2\right )^{5/4}} \, dx,x,x^3\right )+2 \int \frac {x^4}{\sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx+6 \int \frac {1}{\sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx \\ & = \frac {2 \left (1+x^6\right )^{3/4}}{3 x^3}-2 x \operatorname {Hypergeometric2F1}\left (\frac {1}{6},\frac {1}{4},\frac {7}{6},-x^6\right )+2 \int \frac {x^4}{\sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx+6 \int \frac {1}{\sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx \\ \end{align*}
Time = 4.55 (sec) , antiderivative size = 95, normalized size of antiderivative = 1.00 \[ \int \frac {\left (-2+x^6\right ) \left (1-x^4+x^6\right )}{x^4 \sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx=\frac {2 \left (1+x^6\right )^{3/4}}{3 x^3}+\sqrt {2} \arctan \left (\frac {\sqrt {2} x \sqrt [4]{1+x^6}}{-x^2+\sqrt {1+x^6}}\right )+\sqrt {2} \text {arctanh}\left (\frac {\sqrt {2} x \sqrt [4]{1+x^6}}{x^2+\sqrt {1+x^6}}\right ) \]
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Time = 26.14 (sec) , antiderivative size = 129, normalized size of antiderivative = 1.36
method | result | size |
pseudoelliptic | \(\frac {-6 \arctan \left (\frac {\left (x^{6}+1\right )^{\frac {1}{4}} \sqrt {2}+x}{x}\right ) \sqrt {2}\, x^{3}-6 \arctan \left (\frac {\left (x^{6}+1\right )^{\frac {1}{4}} \sqrt {2}-x}{x}\right ) \sqrt {2}\, x^{3}-3 \ln \left (\frac {-\left (x^{6}+1\right )^{\frac {1}{4}} x \sqrt {2}+x^{2}+\sqrt {x^{6}+1}}{\left (x^{6}+1\right )^{\frac {1}{4}} x \sqrt {2}+x^{2}+\sqrt {x^{6}+1}}\right ) \sqrt {2}\, x^{3}+4 \left (x^{6}+1\right )^{\frac {3}{4}}}{6 x^{3}}\) | \(129\) |
trager | \(\frac {2 \left (x^{6}+1\right )^{\frac {3}{4}}}{3 x^{3}}+\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )^{3} \ln \left (-\frac {\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )^{3} x^{6}-\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )^{3} x^{4}+2 \left (x^{6}+1\right )^{\frac {1}{4}} \operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )^{2} x^{3}-2 \sqrt {x^{6}+1}\, \operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right ) x^{2}+2 \left (x^{6}+1\right )^{\frac {3}{4}} x +\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )^{3}}{x^{6}+x^{4}+1}\right )-\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right ) \ln \left (-\frac {2 \sqrt {x^{6}+1}\, \operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )^{3} x^{2}-\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right ) x^{6}-2 \left (x^{6}+1\right )^{\frac {1}{4}} \operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )^{2} x^{3}+\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right ) x^{4}+2 \left (x^{6}+1\right )^{\frac {3}{4}} x -\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )}{x^{6}+x^{4}+1}\right )\) | \(219\) |
risch | \(\frac {2 \left (x^{6}+1\right )^{\frac {3}{4}}}{3 x^{3}}-\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right ) \ln \left (\frac {2 \sqrt {x^{6}+1}\, \operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )^{3} x^{2}-\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right ) x^{6}-2 \left (x^{6}+1\right )^{\frac {1}{4}} \operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )^{2} x^{3}+\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right ) x^{4}+2 \left (x^{6}+1\right )^{\frac {3}{4}} x -\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )}{x^{6}+x^{4}+1}\right )-\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )^{3} \ln \left (\frac {-\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )^{3} x^{6}+\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )^{3} x^{4}+2 \left (x^{6}+1\right )^{\frac {1}{4}} \operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )^{2} x^{3}+2 \sqrt {x^{6}+1}\, \operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right ) x^{2}+2 \left (x^{6}+1\right )^{\frac {3}{4}} x -\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )^{3}}{x^{6}+x^{4}+1}\right )\) | \(220\) |
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Result contains complex when optimal does not.
Time = 112.85 (sec) , antiderivative size = 311, normalized size of antiderivative = 3.27 \[ \int \frac {\left (-2+x^6\right ) \left (1-x^4+x^6\right )}{x^4 \sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx=\frac {-\left (3 i + 3\right ) \, \sqrt {2} x^{3} \log \left (\frac {4 i \, {\left (x^{6} + 1\right )}^{\frac {1}{4}} x^{3} - \left (2 i - 2\right ) \, \sqrt {2} \sqrt {x^{6} + 1} x^{2} - 4 \, {\left (x^{6} + 1\right )}^{\frac {3}{4}} x + \sqrt {2} {\left (\left (i + 1\right ) \, x^{6} - \left (i + 1\right ) \, x^{4} + i + 1\right )}}{x^{6} + x^{4} + 1}\right ) + \left (3 i + 3\right ) \, \sqrt {2} x^{3} \log \left (\frac {4 i \, {\left (x^{6} + 1\right )}^{\frac {1}{4}} x^{3} + \left (2 i - 2\right ) \, \sqrt {2} \sqrt {x^{6} + 1} x^{2} - 4 \, {\left (x^{6} + 1\right )}^{\frac {3}{4}} x + \sqrt {2} {\left (-\left (i + 1\right ) \, x^{6} + \left (i + 1\right ) \, x^{4} - i - 1\right )}}{x^{6} + x^{4} + 1}\right ) + \left (3 i - 3\right ) \, \sqrt {2} x^{3} \log \left (\frac {-4 i \, {\left (x^{6} + 1\right )}^{\frac {1}{4}} x^{3} + \left (2 i + 2\right ) \, \sqrt {2} \sqrt {x^{6} + 1} x^{2} - 4 \, {\left (x^{6} + 1\right )}^{\frac {3}{4}} x + \sqrt {2} {\left (-\left (i - 1\right ) \, x^{6} + \left (i - 1\right ) \, x^{4} - i + 1\right )}}{x^{6} + x^{4} + 1}\right ) - \left (3 i - 3\right ) \, \sqrt {2} x^{3} \log \left (\frac {-4 i \, {\left (x^{6} + 1\right )}^{\frac {1}{4}} x^{3} - \left (2 i + 2\right ) \, \sqrt {2} \sqrt {x^{6} + 1} x^{2} - 4 \, {\left (x^{6} + 1\right )}^{\frac {3}{4}} x + \sqrt {2} {\left (\left (i - 1\right ) \, x^{6} - \left (i - 1\right ) \, x^{4} + i - 1\right )}}{x^{6} + x^{4} + 1}\right ) + 8 \, {\left (x^{6} + 1\right )}^{\frac {3}{4}}}{12 \, x^{3}} \]
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Timed out. \[ \int \frac {\left (-2+x^6\right ) \left (1-x^4+x^6\right )}{x^4 \sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx=\text {Timed out} \]
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\[ \int \frac {\left (-2+x^6\right ) \left (1-x^4+x^6\right )}{x^4 \sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx=\int { \frac {{\left (x^{6} - x^{4} + 1\right )} {\left (x^{6} - 2\right )}}{{\left (x^{6} + x^{4} + 1\right )} {\left (x^{6} + 1\right )}^{\frac {1}{4}} x^{4}} \,d x } \]
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\[ \int \frac {\left (-2+x^6\right ) \left (1-x^4+x^6\right )}{x^4 \sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx=\int { \frac {{\left (x^{6} - x^{4} + 1\right )} {\left (x^{6} - 2\right )}}{{\left (x^{6} + x^{4} + 1\right )} {\left (x^{6} + 1\right )}^{\frac {1}{4}} x^{4}} \,d x } \]
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Timed out. \[ \int \frac {\left (-2+x^6\right ) \left (1-x^4+x^6\right )}{x^4 \sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx=\int \frac {\left (x^6-2\right )\,\left (x^6-x^4+1\right )}{x^4\,{\left (x^6+1\right )}^{1/4}\,\left (x^6+x^4+1\right )} \,d x \]
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