Integrand size = 38, antiderivative size = 95 \[ \int \frac {\left (-2+x^6\right ) \left (1-x^4+x^6\right )}{x^4 \sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx=\frac {2 \left (1+x^6\right )^{3/4}}{3 x^3}+\sqrt {2} \arctan \left (\frac {\sqrt {2} x \sqrt [4]{1+x^6}}{-x^2+\sqrt {1+x^6}}\right )+\sqrt {2} \text {arctanh}\left (\frac {\sqrt {2} x \sqrt [4]{1+x^6}}{x^2+\sqrt {1+x^6}}\right ) \]
2/3*(x^6+1)^(3/4)/x^3+2^(1/2)*arctan(2^(1/2)*x*(x^6+1)^(1/4)/(-x^2+(x^6+1) ^(1/2)))+2^(1/2)*arctanh(2^(1/2)*x*(x^6+1)^(1/4)/(x^2+(x^6+1)^(1/2)))
Time = 4.55 (sec) , antiderivative size = 95, normalized size of antiderivative = 1.00 \[ \int \frac {\left (-2+x^6\right ) \left (1-x^4+x^6\right )}{x^4 \sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx=\frac {2 \left (1+x^6\right )^{3/4}}{3 x^3}+\sqrt {2} \arctan \left (\frac {\sqrt {2} x \sqrt [4]{1+x^6}}{-x^2+\sqrt {1+x^6}}\right )+\sqrt {2} \text {arctanh}\left (\frac {\sqrt {2} x \sqrt [4]{1+x^6}}{x^2+\sqrt {1+x^6}}\right ) \]
(2*(1 + x^6)^(3/4))/(3*x^3) + Sqrt[2]*ArcTan[(Sqrt[2]*x*(1 + x^6)^(1/4))/( -x^2 + Sqrt[1 + x^6])] + Sqrt[2]*ArcTanh[(Sqrt[2]*x*(1 + x^6)^(1/4))/(x^2 + Sqrt[1 + x^6])]
Below are the steps used by Rubi to obtain the solution. The rule number used for the transformation is given above next to the arrow. The rules definitions used are listed below.
\(\displaystyle \int \frac {\left (x^6-2\right ) \left (x^6-x^4+1\right )}{x^4 \sqrt [4]{x^6+1} \left (x^6+x^4+1\right )} \, dx\) |
\(\Big \downarrow \) 7293 |
\(\displaystyle \int \left (-\frac {2}{\sqrt [4]{x^6+1}}+\frac {2 \left (x^4+3\right )}{\sqrt [4]{x^6+1} \left (x^6+x^4+1\right )}-\frac {2}{\sqrt [4]{x^6+1} x^4}+\frac {x^2}{\sqrt [4]{x^6+1}}\right )dx\) |
\(\Big \downarrow \) 2009 |
\(\displaystyle 6 \int \frac {1}{\sqrt [4]{x^6+1} \left (x^6+x^4+1\right )}dx+2 \int \frac {x^4}{\sqrt [4]{x^6+1} \left (x^6+x^4+1\right )}dx-2 x \operatorname {Hypergeometric2F1}\left (\frac {1}{6},\frac {1}{4},\frac {7}{6},-x^6\right )+\frac {2 \left (x^6+1\right )^{3/4}}{3 x^3}\) |
3.14.21.3.1 Defintions of rubi rules used
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 | \(\frac {2 \left (x^{6}+1\right )^{\frac {3}{4}}}{3 x^{3}}-\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right ) \ln \left (\frac {2 \sqrt {x^{6}+1}\, \operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )^{3} x^{2}-\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right ) x^{6}-2 \left (x^{6}+1\right )^{\frac {1}{4}} \operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )^{2} x^{3}+\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right ) x^{4}+2 \left (x^{6}+1\right )^{\frac {3}{4}} x -\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )}{x^{6}+x^{4}+1}\right )-\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )^{3} \ln \left (\frac {-\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )^{3} x^{6}+\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )^{3} x^{4}+2 \left (x^{6}+1\right )^{\frac {1}{4}} \operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )^{2} x^{3}+2 \sqrt {x^{6}+1}\, \operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right ) x^{2}+2 \left (x^{6}+1\right )^{\frac {3}{4}} x -\operatorname {RootOf}\left (\textit {\_Z}^{4}+1\right )^{3}}{x^{6}+x^{4}+1}\right )\) | \(220\) |
1/6*(-6*arctan(((x^6+1)^(1/4)*2^(1/2)+x)/x)*2^(1/2)*x^3-6*arctan(((x^6+1)^ (1/4)*2^(1/2)-x)/x)*2^(1/2)*x^3-3*ln((-(x^6+1)^(1/4)*x*2^(1/2)+x^2+(x^6+1) ^(1/2))/((x^6+1)^(1/4)*x*2^(1/2)+x^2+(x^6+1)^(1/2)))*2^(1/2)*x^3+4*(x^6+1) ^(3/4))/x^3
Result contains complex when optimal does not.
Time = 112.85 (sec) , antiderivative size = 311, normalized size of antiderivative = 3.27 \[ \int \frac {\left (-2+x^6\right ) \left (1-x^4+x^6\right )}{x^4 \sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx=\frac {-\left (3 i + 3\right ) \, \sqrt {2} x^{3} \log \left (\frac {4 i \, {\left (x^{6} + 1\right )}^{\frac {1}{4}} x^{3} - \left (2 i - 2\right ) \, \sqrt {2} \sqrt {x^{6} + 1} x^{2} - 4 \, {\left (x^{6} + 1\right )}^{\frac {3}{4}} x + \sqrt {2} {\left (\left (i + 1\right ) \, x^{6} - \left (i + 1\right ) \, x^{4} + i + 1\right )}}{x^{6} + x^{4} + 1}\right ) + \left (3 i + 3\right ) \, \sqrt {2} x^{3} \log \left (\frac {4 i \, {\left (x^{6} + 1\right )}^{\frac {1}{4}} x^{3} + \left (2 i - 2\right ) \, \sqrt {2} \sqrt {x^{6} + 1} x^{2} - 4 \, {\left (x^{6} + 1\right )}^{\frac {3}{4}} x + \sqrt {2} {\left (-\left (i + 1\right ) \, x^{6} + \left (i + 1\right ) \, x^{4} - i - 1\right )}}{x^{6} + x^{4} + 1}\right ) + \left (3 i - 3\right ) \, \sqrt {2} x^{3} \log \left (\frac {-4 i \, {\left (x^{6} + 1\right )}^{\frac {1}{4}} x^{3} + \left (2 i + 2\right ) \, \sqrt {2} \sqrt {x^{6} + 1} x^{2} - 4 \, {\left (x^{6} + 1\right )}^{\frac {3}{4}} x + \sqrt {2} {\left (-\left (i - 1\right ) \, x^{6} + \left (i - 1\right ) \, x^{4} - i + 1\right )}}{x^{6} + x^{4} + 1}\right ) - \left (3 i - 3\right ) \, \sqrt {2} x^{3} \log \left (\frac {-4 i \, {\left (x^{6} + 1\right )}^{\frac {1}{4}} x^{3} - \left (2 i + 2\right ) \, \sqrt {2} \sqrt {x^{6} + 1} x^{2} - 4 \, {\left (x^{6} + 1\right )}^{\frac {3}{4}} x + \sqrt {2} {\left (\left (i - 1\right ) \, x^{6} - \left (i - 1\right ) \, x^{4} + i - 1\right )}}{x^{6} + x^{4} + 1}\right ) + 8 \, {\left (x^{6} + 1\right )}^{\frac {3}{4}}}{12 \, x^{3}} \]
1/12*(-(3*I + 3)*sqrt(2)*x^3*log((4*I*(x^6 + 1)^(1/4)*x^3 - (2*I - 2)*sqrt (2)*sqrt(x^6 + 1)*x^2 - 4*(x^6 + 1)^(3/4)*x + sqrt(2)*((I + 1)*x^6 - (I + 1)*x^4 + I + 1))/(x^6 + x^4 + 1)) + (3*I + 3)*sqrt(2)*x^3*log((4*I*(x^6 + 1)^(1/4)*x^3 + (2*I - 2)*sqrt(2)*sqrt(x^6 + 1)*x^2 - 4*(x^6 + 1)^(3/4)*x + sqrt(2)*(-(I + 1)*x^6 + (I + 1)*x^4 - I - 1))/(x^6 + x^4 + 1)) + (3*I - 3 )*sqrt(2)*x^3*log((-4*I*(x^6 + 1)^(1/4)*x^3 + (2*I + 2)*sqrt(2)*sqrt(x^6 + 1)*x^2 - 4*(x^6 + 1)^(3/4)*x + sqrt(2)*(-(I - 1)*x^6 + (I - 1)*x^4 - I + 1))/(x^6 + x^4 + 1)) - (3*I - 3)*sqrt(2)*x^3*log((-4*I*(x^6 + 1)^(1/4)*x^3 - (2*I + 2)*sqrt(2)*sqrt(x^6 + 1)*x^2 - 4*(x^6 + 1)^(3/4)*x + sqrt(2)*((I - 1)*x^6 - (I - 1)*x^4 + I - 1))/(x^6 + x^4 + 1)) + 8*(x^6 + 1)^(3/4))/x^ 3
Timed out. \[ \int \frac {\left (-2+x^6\right ) \left (1-x^4+x^6\right )}{x^4 \sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx=\text {Timed out} \]
\[ \int \frac {\left (-2+x^6\right ) \left (1-x^4+x^6\right )}{x^4 \sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx=\int { \frac {{\left (x^{6} - x^{4} + 1\right )} {\left (x^{6} - 2\right )}}{{\left (x^{6} + x^{4} + 1\right )} {\left (x^{6} + 1\right )}^{\frac {1}{4}} x^{4}} \,d x } \]
\[ \int \frac {\left (-2+x^6\right ) \left (1-x^4+x^6\right )}{x^4 \sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx=\int { \frac {{\left (x^{6} - x^{4} + 1\right )} {\left (x^{6} - 2\right )}}{{\left (x^{6} + x^{4} + 1\right )} {\left (x^{6} + 1\right )}^{\frac {1}{4}} x^{4}} \,d x } \]
Timed out. \[ \int \frac {\left (-2+x^6\right ) \left (1-x^4+x^6\right )}{x^4 \sqrt [4]{1+x^6} \left (1+x^4+x^6\right )} \, dx=\int \frac {\left (x^6-2\right )\,\left (x^6-x^4+1\right )}{x^4\,{\left (x^6+1\right )}^{1/4}\,\left (x^6+x^4+1\right )} \,d x \]