Integrand size = 18, antiderivative size = 38 \[ \int \frac {-1+x^6}{x^{13} \sqrt {1+x^6}} \, dx=\frac {\left (2-7 x^6\right ) \sqrt {1+x^6}}{24 x^{12}}+\frac {7}{24} \text {arctanh}\left (\sqrt {1+x^6}\right ) \]
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Time = 0.01 (sec) , antiderivative size = 47, normalized size of antiderivative = 1.24, number of steps used = 5, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.278, Rules used = {457, 79, 44, 65, 213} \[ \int \frac {-1+x^6}{x^{13} \sqrt {1+x^6}} \, dx=\frac {7}{24} \text {arctanh}\left (\sqrt {x^6+1}\right )-\frac {7 \sqrt {x^6+1}}{24 x^6}+\frac {\sqrt {x^6+1}}{12 x^{12}} \]
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Rule 44
Rule 65
Rule 79
Rule 213
Rule 457
Rubi steps \begin{align*} \text {integral}& = \frac {1}{6} \text {Subst}\left (\int \frac {-1+x}{x^3 \sqrt {1+x}} \, dx,x,x^6\right ) \\ & = \frac {\sqrt {1+x^6}}{12 x^{12}}+\frac {7}{24} \text {Subst}\left (\int \frac {1}{x^2 \sqrt {1+x}} \, dx,x,x^6\right ) \\ & = \frac {\sqrt {1+x^6}}{12 x^{12}}-\frac {7 \sqrt {1+x^6}}{24 x^6}-\frac {7}{48} \text {Subst}\left (\int \frac {1}{x \sqrt {1+x}} \, dx,x,x^6\right ) \\ & = \frac {\sqrt {1+x^6}}{12 x^{12}}-\frac {7 \sqrt {1+x^6}}{24 x^6}-\frac {7}{24} \text {Subst}\left (\int \frac {1}{-1+x^2} \, dx,x,\sqrt {1+x^6}\right ) \\ & = \frac {\sqrt {1+x^6}}{12 x^{12}}-\frac {7 \sqrt {1+x^6}}{24 x^6}+\frac {7}{24} \text {arctanh}\left (\sqrt {1+x^6}\right ) \\ \end{align*}
Time = 0.05 (sec) , antiderivative size = 38, normalized size of antiderivative = 1.00 \[ \int \frac {-1+x^6}{x^{13} \sqrt {1+x^6}} \, dx=\frac {\left (2-7 x^6\right ) \sqrt {1+x^6}}{24 x^{12}}+\frac {7}{24} \text {arctanh}\left (\sqrt {1+x^6}\right ) \]
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Time = 1.32 (sec) , antiderivative size = 37, normalized size of antiderivative = 0.97
method | result | size |
trager | \(-\frac {\left (7 x^{6}-2\right ) \sqrt {x^{6}+1}}{24 x^{12}}-\frac {7 \ln \left (\frac {\sqrt {x^{6}+1}-1}{x^{3}}\right )}{24}\) | \(37\) |
pseudoelliptic | \(\frac {7 \,\operatorname {arctanh}\left (\frac {1}{\sqrt {x^{6}+1}}\right ) x^{12}-7 \sqrt {x^{6}+1}\, x^{6}+2 \sqrt {x^{6}+1}}{24 x^{12}}\) | \(41\) |
risch | \(-\frac {7 x^{12}+5 x^{6}-2}{24 x^{12} \sqrt {x^{6}+1}}-\frac {7 \left (-2 \sqrt {\pi }\, \ln \left (\frac {1}{2}+\frac {\sqrt {x^{6}+1}}{2}\right )+\left (-2 \ln \left (2\right )+6 \ln \left (x \right )\right ) \sqrt {\pi }\right )}{48 \sqrt {\pi }}\) | \(62\) |
meijerg | \(\frac {\frac {\sqrt {\pi }\, \left (4 x^{6}+8\right )}{8 x^{6}}-\frac {\sqrt {\pi }\, \sqrt {x^{6}+1}}{x^{6}}+\sqrt {\pi }\, \ln \left (\frac {1}{2}+\frac {\sqrt {x^{6}+1}}{2}\right )-\frac {\left (1-2 \ln \left (2\right )+6 \ln \left (x \right )\right ) \sqrt {\pi }}{2}-\frac {\sqrt {\pi }}{x^{6}}}{6 \sqrt {\pi }}-\frac {\frac {\sqrt {\pi }\, \left (-7 x^{12}-8 x^{6}+8\right )}{16 x^{12}}-\frac {\sqrt {\pi }\, \left (-12 x^{6}+8\right ) \sqrt {x^{6}+1}}{16 x^{12}}-\frac {3 \sqrt {\pi }\, \ln \left (\frac {1}{2}+\frac {\sqrt {x^{6}+1}}{2}\right )}{4}+\frac {3 \left (\frac {7}{6}-2 \ln \left (2\right )+6 \ln \left (x \right )\right ) \sqrt {\pi }}{8}-\frac {\sqrt {\pi }}{2 x^{12}}+\frac {\sqrt {\pi }}{2 x^{6}}}{6 \sqrt {\pi }}\) | \(173\) |
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Time = 0.24 (sec) , antiderivative size = 52, normalized size of antiderivative = 1.37 \[ \int \frac {-1+x^6}{x^{13} \sqrt {1+x^6}} \, dx=\frac {7 \, x^{12} \log \left (\sqrt {x^{6} + 1} + 1\right ) - 7 \, x^{12} \log \left (\sqrt {x^{6} + 1} - 1\right ) - 2 \, {\left (7 \, x^{6} - 2\right )} \sqrt {x^{6} + 1}}{48 \, x^{12}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 87 vs. \(2 (34) = 68\).
Time = 33.63 (sec) , antiderivative size = 87, normalized size of antiderivative = 2.29 \[ \int \frac {-1+x^6}{x^{13} \sqrt {1+x^6}} \, dx=- \frac {7 \log {\left (\sqrt {x^{6} + 1} - 1 \right )}}{48} + \frac {7 \log {\left (\sqrt {x^{6} + 1} + 1 \right )}}{48} - \frac {7}{48 \left (\sqrt {x^{6} + 1} + 1\right )} - \frac {1}{48 \left (\sqrt {x^{6} + 1} + 1\right )^{2}} - \frac {7}{48 \left (\sqrt {x^{6} + 1} - 1\right )} + \frac {1}{48 \left (\sqrt {x^{6} + 1} - 1\right )^{2}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 76 vs. \(2 (30) = 60\).
Time = 0.29 (sec) , antiderivative size = 76, normalized size of antiderivative = 2.00 \[ \int \frac {-1+x^6}{x^{13} \sqrt {1+x^6}} \, dx=\frac {3 \, {\left (x^{6} + 1\right )}^{\frac {3}{2}} - 5 \, \sqrt {x^{6} + 1}}{24 \, {\left (2 \, x^{6} - {\left (x^{6} + 1\right )}^{2} + 1\right )}} - \frac {\sqrt {x^{6} + 1}}{6 \, x^{6}} + \frac {7}{48} \, \log \left (\sqrt {x^{6} + 1} + 1\right ) - \frac {7}{48} \, \log \left (\sqrt {x^{6} + 1} - 1\right ) \]
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Time = 0.26 (sec) , antiderivative size = 49, normalized size of antiderivative = 1.29 \[ \int \frac {-1+x^6}{x^{13} \sqrt {1+x^6}} \, dx=-\frac {7 \, {\left (x^{6} + 1\right )}^{\frac {3}{2}} - 9 \, \sqrt {x^{6} + 1}}{24 \, x^{12}} + \frac {7}{48} \, \log \left (\sqrt {x^{6} + 1} + 1\right ) - \frac {7}{48} \, \log \left (\sqrt {x^{6} + 1} - 1\right ) \]
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Time = 5.55 (sec) , antiderivative size = 47, normalized size of antiderivative = 1.24 \[ \int \frac {-1+x^6}{x^{13} \sqrt {1+x^6}} \, dx=\frac {7\,\mathrm {atanh}\left (\sqrt {x^6+1}\right )}{24}-\frac {\sqrt {x^6+1}}{6\,x^6}+\frac {5\,\sqrt {x^6+1}}{24\,x^{12}}-\frac {{\left (x^6+1\right )}^{3/2}}{8\,x^{12}} \]
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