Integrand size = 13, antiderivative size = 117 \[ \int x^{15} \sqrt [3]{-1+x^6} \, dx=\frac {1}{324} \sqrt [3]{-1+x^6} \left (-5 x^4-3 x^{10}+18 x^{16}\right )+\frac {5 \arctan \left (\frac {\sqrt {3} x^2}{x^2+2 \sqrt [3]{-1+x^6}}\right )}{162 \sqrt {3}}+\frac {5}{486} \log \left (-x^2+\sqrt [3]{-1+x^6}\right )-\frac {5}{972} \log \left (x^4+x^2 \sqrt [3]{-1+x^6}+\left (-1+x^6\right )^{2/3}\right ) \]
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Time = 0.03 (sec) , antiderivative size = 101, normalized size of antiderivative = 0.86, number of steps used = 5, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.308, Rules used = {281, 285, 327, 337} \[ \int x^{15} \sqrt [3]{-1+x^6} \, dx=\frac {5 \arctan \left (\frac {\frac {2 x^2}{\sqrt [3]{x^6-1}}+1}{\sqrt {3}}\right )}{162 \sqrt {3}}+\frac {1}{18} \sqrt [3]{x^6-1} x^{16}-\frac {1}{108} \sqrt [3]{x^6-1} x^{10}-\frac {5}{324} \sqrt [3]{x^6-1} x^4+\frac {5}{324} \log \left (x^2-\sqrt [3]{x^6-1}\right ) \]
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Rule 281
Rule 285
Rule 327
Rule 337
Rubi steps \begin{align*} \text {integral}& = \frac {1}{2} \text {Subst}\left (\int x^7 \sqrt [3]{-1+x^3} \, dx,x,x^2\right ) \\ & = \frac {1}{18} x^{16} \sqrt [3]{-1+x^6}-\frac {1}{18} \text {Subst}\left (\int \frac {x^7}{\left (-1+x^3\right )^{2/3}} \, dx,x,x^2\right ) \\ & = -\frac {1}{108} x^{10} \sqrt [3]{-1+x^6}+\frac {1}{18} x^{16} \sqrt [3]{-1+x^6}-\frac {5}{108} \text {Subst}\left (\int \frac {x^4}{\left (-1+x^3\right )^{2/3}} \, dx,x,x^2\right ) \\ & = -\frac {5}{324} x^4 \sqrt [3]{-1+x^6}-\frac {1}{108} x^{10} \sqrt [3]{-1+x^6}+\frac {1}{18} x^{16} \sqrt [3]{-1+x^6}-\frac {5}{162} \text {Subst}\left (\int \frac {x}{\left (-1+x^3\right )^{2/3}} \, dx,x,x^2\right ) \\ & = -\frac {5}{324} x^4 \sqrt [3]{-1+x^6}-\frac {1}{108} x^{10} \sqrt [3]{-1+x^6}+\frac {1}{18} x^{16} \sqrt [3]{-1+x^6}+\frac {5 \arctan \left (\frac {1+\frac {2 x^2}{\sqrt [3]{-1+x^6}}}{\sqrt {3}}\right )}{162 \sqrt {3}}+\frac {5}{324} \log \left (x^2-\sqrt [3]{-1+x^6}\right ) \\ \end{align*}
Time = 1.11 (sec) , antiderivative size = 112, normalized size of antiderivative = 0.96 \[ \int x^{15} \sqrt [3]{-1+x^6} \, dx=\frac {1}{972} \left (3 x^4 \sqrt [3]{-1+x^6} \left (-5-3 x^6+18 x^{12}\right )+10 \sqrt {3} \arctan \left (\frac {\sqrt {3} x^2}{x^2+2 \sqrt [3]{-1+x^6}}\right )+10 \log \left (-x^2+\sqrt [3]{-1+x^6}\right )-5 \log \left (x^4+x^2 \sqrt [3]{-1+x^6}+\left (-1+x^6\right )^{2/3}\right )\right ) \]
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Result contains higher order function than in optimal. Order 9 vs. order 3.
Time = 1.88 (sec) , antiderivative size = 33, normalized size of antiderivative = 0.28
method | result | size |
meijerg | \(\frac {\operatorname {signum}\left (x^{6}-1\right )^{\frac {1}{3}} x^{16} \operatorname {hypergeom}\left (\left [-\frac {1}{3}, \frac {8}{3}\right ], \left [\frac {11}{3}\right ], x^{6}\right )}{16 {\left (-\operatorname {signum}\left (x^{6}-1\right )\right )}^{\frac {1}{3}}}\) | \(33\) |
risch | \(\frac {x^{4} \left (18 x^{12}-3 x^{6}-5\right ) \left (x^{6}-1\right )^{\frac {1}{3}}}{324}-\frac {5 {\left (-\operatorname {signum}\left (x^{6}-1\right )\right )}^{\frac {2}{3}} x^{4} \operatorname {hypergeom}\left (\left [\frac {2}{3}, \frac {2}{3}\right ], \left [\frac {5}{3}\right ], x^{6}\right )}{324 \operatorname {signum}\left (x^{6}-1\right )^{\frac {2}{3}}}\) | \(58\) |
pseudoelliptic | \(\frac {-54 \left (x^{6}-1\right )^{\frac {1}{3}} x^{16}+9 \left (x^{6}-1\right )^{\frac {1}{3}} x^{10}+15 x^{4} \left (x^{6}-1\right )^{\frac {1}{3}}+10 \sqrt {3}\, \arctan \left (\frac {\sqrt {3}\, \left (x^{2}+2 \left (x^{6}-1\right )^{\frac {1}{3}}\right )}{3 x^{2}}\right )+5 \ln \left (\frac {x^{4}+x^{2} \left (x^{6}-1\right )^{\frac {1}{3}}+\left (x^{6}-1\right )^{\frac {2}{3}}}{x^{4}}\right )-10 \ln \left (\frac {-x^{2}+\left (x^{6}-1\right )^{\frac {1}{3}}}{x^{2}}\right )}{972 \left (x^{4}+x^{2} \left (x^{6}-1\right )^{\frac {1}{3}}+\left (x^{6}-1\right )^{\frac {2}{3}}\right )^{3} \left (-x^{2}+\left (x^{6}-1\right )^{\frac {1}{3}}\right )^{3}}\) | \(155\) |
trager | \(\frac {x^{4} \left (18 x^{12}-3 x^{6}-5\right ) \left (x^{6}-1\right )^{\frac {1}{3}}}{324}+\frac {5 \ln \left (-2 \operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right )^{2} x^{6}+\operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right ) x^{6}+x^{6}-3 \operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right ) \left (x^{6}-1\right )^{\frac {2}{3}} x^{2}-3 x^{4} \left (x^{6}-1\right )^{\frac {1}{3}}-2 \operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right )-1\right )}{486}+\frac {5 \operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right ) \ln \left (\operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right )^{2} x^{6}+\operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right ) x^{6}-3 \operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right ) \left (x^{6}-1\right )^{\frac {1}{3}} x^{4}-2 x^{6}+3 \operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right ) \left (x^{6}-1\right )^{\frac {2}{3}} x^{2}+3 x^{2} \left (x^{6}-1\right )^{\frac {2}{3}}-\operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right )+1\right )}{486}\) | \(199\) |
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Time = 0.27 (sec) , antiderivative size = 107, normalized size of antiderivative = 0.91 \[ \int x^{15} \sqrt [3]{-1+x^6} \, dx=-\frac {5}{486} \, \sqrt {3} \arctan \left (\frac {\sqrt {3} x^{2} + 2 \, \sqrt {3} {\left (x^{6} - 1\right )}^{\frac {1}{3}}}{3 \, x^{2}}\right ) + \frac {1}{324} \, {\left (18 \, x^{16} - 3 \, x^{10} - 5 \, x^{4}\right )} {\left (x^{6} - 1\right )}^{\frac {1}{3}} + \frac {5}{486} \, \log \left (-\frac {x^{2} - {\left (x^{6} - 1\right )}^{\frac {1}{3}}}{x^{2}}\right ) - \frac {5}{972} \, \log \left (\frac {x^{4} + {\left (x^{6} - 1\right )}^{\frac {1}{3}} x^{2} + {\left (x^{6} - 1\right )}^{\frac {2}{3}}}{x^{4}}\right ) \]
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Result contains complex when optimal does not.
Time = 3.60 (sec) , antiderivative size = 36, normalized size of antiderivative = 0.31 \[ \int x^{15} \sqrt [3]{-1+x^6} \, dx=- \frac {x^{16} e^{- \frac {2 i \pi }{3}} \Gamma \left (\frac {8}{3}\right ) {{}_{2}F_{1}\left (\begin {matrix} - \frac {1}{3}, \frac {8}{3} \\ \frac {11}{3} \end {matrix}\middle | {x^{6}} \right )}}{6 \Gamma \left (\frac {11}{3}\right )} \]
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Time = 0.28 (sec) , antiderivative size = 145, normalized size of antiderivative = 1.24 \[ \int x^{15} \sqrt [3]{-1+x^6} \, dx=-\frac {5}{486} \, \sqrt {3} \arctan \left (\frac {1}{3} \, \sqrt {3} {\left (\frac {2 \, {\left (x^{6} - 1\right )}^{\frac {1}{3}}}{x^{2}} + 1\right )}\right ) - \frac {\frac {10 \, {\left (x^{6} - 1\right )}^{\frac {1}{3}}}{x^{2}} + \frac {13 \, {\left (x^{6} - 1\right )}^{\frac {4}{3}}}{x^{8}} - \frac {5 \, {\left (x^{6} - 1\right )}^{\frac {7}{3}}}{x^{14}}}{324 \, {\left (\frac {3 \, {\left (x^{6} - 1\right )}}{x^{6}} - \frac {3 \, {\left (x^{6} - 1\right )}^{2}}{x^{12}} + \frac {{\left (x^{6} - 1\right )}^{3}}{x^{18}} - 1\right )}} - \frac {5}{972} \, \log \left (\frac {{\left (x^{6} - 1\right )}^{\frac {1}{3}}}{x^{2}} + \frac {{\left (x^{6} - 1\right )}^{\frac {2}{3}}}{x^{4}} + 1\right ) + \frac {5}{486} \, \log \left (\frac {{\left (x^{6} - 1\right )}^{\frac {1}{3}}}{x^{2}} - 1\right ) \]
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\[ \int x^{15} \sqrt [3]{-1+x^6} \, dx=\int { {\left (x^{6} - 1\right )}^{\frac {1}{3}} x^{15} \,d x } \]
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Timed out. \[ \int x^{15} \sqrt [3]{-1+x^6} \, dx=\int x^{15}\,{\left (x^6-1\right )}^{1/3} \,d x \]
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