Integrand size = 31, antiderivative size = 229 \[ \int \frac {4+x^2+3 x^4+5 x^6}{x^2 \left (3+2 x^2+x^4\right )^2} \, dx=-\frac {4}{9 x}-\frac {25 x \left (5+x^2\right )}{72 \left (3+2 x^2+x^4\right )}+\frac {1}{48} \sqrt {\frac {1}{6} \left (-965+699 \sqrt {3}\right )} \arctan \left (\frac {\sqrt {2 \left (-1+\sqrt {3}\right )}-2 x}{\sqrt {2 \left (1+\sqrt {3}\right )}}\right )-\frac {1}{48} \sqrt {\frac {1}{6} \left (-965+699 \sqrt {3}\right )} \arctan \left (\frac {\sqrt {2 \left (-1+\sqrt {3}\right )}+2 x}{\sqrt {2 \left (1+\sqrt {3}\right )}}\right )-\frac {1}{96} \sqrt {\frac {1}{6} \left (965+699 \sqrt {3}\right )} \log \left (\sqrt {3}-\sqrt {2 \left (-1+\sqrt {3}\right )} x+x^2\right )+\frac {1}{96} \sqrt {\frac {1}{6} \left (965+699 \sqrt {3}\right )} \log \left (\sqrt {3}+\sqrt {2 \left (-1+\sqrt {3}\right )} x+x^2\right ) \]
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Time = 0.20 (sec) , antiderivative size = 229, normalized size of antiderivative = 1.00, number of steps used = 12, number of rules used = 7, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.226, Rules used = {1683, 1678, 1183, 648, 632, 210, 642} \[ \int \frac {4+x^2+3 x^4+5 x^6}{x^2 \left (3+2 x^2+x^4\right )^2} \, dx=\frac {1}{48} \sqrt {\frac {1}{6} \left (699 \sqrt {3}-965\right )} \arctan \left (\frac {\sqrt {2 \left (\sqrt {3}-1\right )}-2 x}{\sqrt {2 \left (1+\sqrt {3}\right )}}\right )-\frac {1}{48} \sqrt {\frac {1}{6} \left (699 \sqrt {3}-965\right )} \arctan \left (\frac {2 x+\sqrt {2 \left (\sqrt {3}-1\right )}}{\sqrt {2 \left (1+\sqrt {3}\right )}}\right )-\frac {1}{96} \sqrt {\frac {1}{6} \left (965+699 \sqrt {3}\right )} \log \left (x^2-\sqrt {2 \left (\sqrt {3}-1\right )} x+\sqrt {3}\right )+\frac {1}{96} \sqrt {\frac {1}{6} \left (965+699 \sqrt {3}\right )} \log \left (x^2+\sqrt {2 \left (\sqrt {3}-1\right )} x+\sqrt {3}\right )-\frac {25 x \left (x^2+5\right )}{72 \left (x^4+2 x^2+3\right )}-\frac {4}{9 x} \]
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Rule 210
Rule 632
Rule 642
Rule 648
Rule 1183
Rule 1678
Rule 1683
Rubi steps \begin{align*} \text {integral}& = -\frac {25 x \left (5+x^2\right )}{72 \left (3+2 x^2+x^4\right )}+\frac {1}{48} \int \frac {64+\frac {170 x^2}{3}-\frac {50 x^4}{3}}{x^2 \left (3+2 x^2+x^4\right )} \, dx \\ & = -\frac {25 x \left (5+x^2\right )}{72 \left (3+2 x^2+x^4\right )}+\frac {1}{48} \int \left (\frac {64}{3 x^2}-\frac {2 \left (-7+19 x^2\right )}{3+2 x^2+x^4}\right ) \, dx \\ & = -\frac {4}{9 x}-\frac {25 x \left (5+x^2\right )}{72 \left (3+2 x^2+x^4\right )}-\frac {1}{24} \int \frac {-7+19 x^2}{3+2 x^2+x^4} \, dx \\ & = -\frac {4}{9 x}-\frac {25 x \left (5+x^2\right )}{72 \left (3+2 x^2+x^4\right )}-\frac {\int \frac {-7 \sqrt {2 \left (-1+\sqrt {3}\right )}-\left (-7-19 \sqrt {3}\right ) x}{\sqrt {3}-\sqrt {2 \left (-1+\sqrt {3}\right )} x+x^2} \, dx}{48 \sqrt {6 \left (-1+\sqrt {3}\right )}}-\frac {\int \frac {-7 \sqrt {2 \left (-1+\sqrt {3}\right )}+\left (-7-19 \sqrt {3}\right ) x}{\sqrt {3}+\sqrt {2 \left (-1+\sqrt {3}\right )} x+x^2} \, dx}{48 \sqrt {6 \left (-1+\sqrt {3}\right )}} \\ & = -\frac {4}{9 x}-\frac {25 x \left (5+x^2\right )}{72 \left (3+2 x^2+x^4\right )}-\frac {1}{48} \sqrt {\frac {1}{6} \left (566-133 \sqrt {3}\right )} \int \frac {1}{\sqrt {3}-\sqrt {2 \left (-1+\sqrt {3}\right )} x+x^2} \, dx-\frac {1}{48} \sqrt {\frac {1}{6} \left (566-133 \sqrt {3}\right )} \int \frac {1}{\sqrt {3}+\sqrt {2 \left (-1+\sqrt {3}\right )} x+x^2} \, dx-\frac {1}{96} \sqrt {\frac {1}{6} \left (965+699 \sqrt {3}\right )} \int \frac {-\sqrt {2 \left (-1+\sqrt {3}\right )}+2 x}{\sqrt {3}-\sqrt {2 \left (-1+\sqrt {3}\right )} x+x^2} \, dx+\frac {1}{96} \sqrt {\frac {1}{6} \left (965+699 \sqrt {3}\right )} \int \frac {\sqrt {2 \left (-1+\sqrt {3}\right )}+2 x}{\sqrt {3}+\sqrt {2 \left (-1+\sqrt {3}\right )} x+x^2} \, dx \\ & = -\frac {4}{9 x}-\frac {25 x \left (5+x^2\right )}{72 \left (3+2 x^2+x^4\right )}-\frac {1}{96} \sqrt {\frac {1}{6} \left (965+699 \sqrt {3}\right )} \log \left (\sqrt {3}-\sqrt {2 \left (-1+\sqrt {3}\right )} x+x^2\right )+\frac {1}{96} \sqrt {\frac {1}{6} \left (965+699 \sqrt {3}\right )} \log \left (\sqrt {3}+\sqrt {2 \left (-1+\sqrt {3}\right )} x+x^2\right )+\frac {1}{24} \sqrt {\frac {1}{6} \left (566-133 \sqrt {3}\right )} \text {Subst}\left (\int \frac {1}{-2 \left (1+\sqrt {3}\right )-x^2} \, dx,x,-\sqrt {2 \left (-1+\sqrt {3}\right )}+2 x\right )+\frac {1}{24} \sqrt {\frac {1}{6} \left (566-133 \sqrt {3}\right )} \text {Subst}\left (\int \frac {1}{-2 \left (1+\sqrt {3}\right )-x^2} \, dx,x,\sqrt {2 \left (-1+\sqrt {3}\right )}+2 x\right ) \\ & = -\frac {4}{9 x}-\frac {25 x \left (5+x^2\right )}{72 \left (3+2 x^2+x^4\right )}+\frac {1}{48} \sqrt {\frac {1}{6} \left (-965+699 \sqrt {3}\right )} \tan ^{-1}\left (\frac {\sqrt {2 \left (-1+\sqrt {3}\right )}-2 x}{\sqrt {2 \left (1+\sqrt {3}\right )}}\right )-\frac {1}{48} \sqrt {\frac {1}{6} \left (-965+699 \sqrt {3}\right )} \tan ^{-1}\left (\frac {\sqrt {2 \left (-1+\sqrt {3}\right )}+2 x}{\sqrt {2 \left (1+\sqrt {3}\right )}}\right )-\frac {1}{96} \sqrt {\frac {1}{6} \left (965+699 \sqrt {3}\right )} \log \left (\sqrt {3}-\sqrt {2 \left (-1+\sqrt {3}\right )} x+x^2\right )+\frac {1}{96} \sqrt {\frac {1}{6} \left (965+699 \sqrt {3}\right )} \log \left (\sqrt {3}+\sqrt {2 \left (-1+\sqrt {3}\right )} x+x^2\right ) \\ \end{align*}
Result contains complex when optimal does not.
Time = 0.12 (sec) , antiderivative size = 126, normalized size of antiderivative = 0.55 \[ \int \frac {4+x^2+3 x^4+5 x^6}{x^2 \left (3+2 x^2+x^4\right )^2} \, dx=-\frac {4}{9 x}-\frac {25 x \left (5+x^2\right )}{72 \left (3+2 x^2+x^4\right )}-\frac {\left (26 i+19 \sqrt {2}\right ) \arctan \left (\frac {x}{\sqrt {1-i \sqrt {2}}}\right )}{48 \sqrt {2-2 i \sqrt {2}}}-\frac {\left (-26 i+19 \sqrt {2}\right ) \arctan \left (\frac {x}{\sqrt {1+i \sqrt {2}}}\right )}{48 \sqrt {2+2 i \sqrt {2}}} \]
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Result contains higher order function than in optimal. Order 9 vs. order 3.
Time = 0.10 (sec) , antiderivative size = 63, normalized size of antiderivative = 0.28
method | result | size |
risch | \(\frac {-\frac {19}{24} x^{4}-\frac {21}{8} x^{2}-\frac {4}{3}}{x \left (x^{4}+2 x^{2}+3\right )}+\frac {\left (\munderset {\textit {\_R} =\operatorname {RootOf}\left (3 \textit {\_Z}^{4}-1930 \textit {\_Z}^{2}+488601\right )}{\sum }\textit {\_R} \ln \left (-96 \textit {\_R}^{3}+34499 \textit {\_R} +361383 x \right )\right )}{96}\) | \(63\) |
default | \(-\frac {4}{9 x}-\frac {\frac {25}{8} x^{3}+\frac {125}{8} x}{9 \left (x^{4}+2 x^{2}+3\right )}-\frac {\left (32 \sqrt {-2+2 \sqrt {3}}\, \sqrt {3}+39 \sqrt {-2+2 \sqrt {3}}\right ) \ln \left (x^{2}+\sqrt {3}-x \sqrt {-2+2 \sqrt {3}}\right )}{576}-\frac {\left (-14 \sqrt {3}+\frac {\left (32 \sqrt {-2+2 \sqrt {3}}\, \sqrt {3}+39 \sqrt {-2+2 \sqrt {3}}\right ) \sqrt {-2+2 \sqrt {3}}}{2}\right ) \arctan \left (\frac {2 x -\sqrt {-2+2 \sqrt {3}}}{\sqrt {2+2 \sqrt {3}}}\right )}{144 \sqrt {2+2 \sqrt {3}}}-\frac {\left (-32 \sqrt {-2+2 \sqrt {3}}\, \sqrt {3}-39 \sqrt {-2+2 \sqrt {3}}\right ) \ln \left (x^{2}+\sqrt {3}+x \sqrt {-2+2 \sqrt {3}}\right )}{576}-\frac {\left (-14 \sqrt {3}-\frac {\left (-32 \sqrt {-2+2 \sqrt {3}}\, \sqrt {3}-39 \sqrt {-2+2 \sqrt {3}}\right ) \sqrt {-2+2 \sqrt {3}}}{2}\right ) \arctan \left (\frac {2 x +\sqrt {-2+2 \sqrt {3}}}{\sqrt {2+2 \sqrt {3}}}\right )}{144 \sqrt {2+2 \sqrt {3}}}\) | \(283\) |
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Result contains complex when optimal does not.
Time = 0.25 (sec) , antiderivative size = 230, normalized size of antiderivative = 1.00 \[ \int \frac {4+x^2+3 x^4+5 x^6}{x^2 \left (3+2 x^2+x^4\right )^2} \, dx=-\frac {228 \, x^{4} + \sqrt {3} {\left (x^{5} + 2 \, x^{3} + 3 \, x\right )} \sqrt {517 i \, \sqrt {2} + 965} \log \left (\sqrt {3} \sqrt {517 i \, \sqrt {2} + 965} {\left (32 i \, \sqrt {2} - 7\right )} + 2097 \, x\right ) - \sqrt {3} {\left (x^{5} + 2 \, x^{3} + 3 \, x\right )} \sqrt {517 i \, \sqrt {2} + 965} \log \left (\sqrt {3} \sqrt {517 i \, \sqrt {2} + 965} {\left (-32 i \, \sqrt {2} + 7\right )} + 2097 \, x\right ) - \sqrt {3} {\left (x^{5} + 2 \, x^{3} + 3 \, x\right )} \sqrt {-517 i \, \sqrt {2} + 965} \log \left (\sqrt {3} {\left (32 i \, \sqrt {2} + 7\right )} \sqrt {-517 i \, \sqrt {2} + 965} + 2097 \, x\right ) + \sqrt {3} {\left (x^{5} + 2 \, x^{3} + 3 \, x\right )} \sqrt {-517 i \, \sqrt {2} + 965} \log \left (\sqrt {3} {\left (-32 i \, \sqrt {2} - 7\right )} \sqrt {-517 i \, \sqrt {2} + 965} + 2097 \, x\right ) + 756 \, x^{2} + 384}{288 \, {\left (x^{5} + 2 \, x^{3} + 3 \, x\right )}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 1192 vs. \(2 (184) = 368\).
Time = 0.76 (sec) , antiderivative size = 1192, normalized size of antiderivative = 5.21 \[ \int \frac {4+x^2+3 x^4+5 x^6}{x^2 \left (3+2 x^2+x^4\right )^2} \, dx=\text {Too large to display} \]
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\[ \int \frac {4+x^2+3 x^4+5 x^6}{x^2 \left (3+2 x^2+x^4\right )^2} \, dx=\int { \frac {5 \, x^{6} + 3 \, x^{4} + x^{2} + 4}{{\left (x^{4} + 2 \, x^{2} + 3\right )}^{2} x^{2}} \,d x } \]
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Leaf count of result is larger than twice the leaf count of optimal. 572 vs. \(2 (160) = 320\).
Time = 0.58 (sec) , antiderivative size = 572, normalized size of antiderivative = 2.50 \[ \int \frac {4+x^2+3 x^4+5 x^6}{x^2 \left (3+2 x^2+x^4\right )^2} \, dx=\frac {1}{62208} \, \sqrt {2} {\left (19 \cdot 3^{\frac {3}{4}} \sqrt {2} {\left (6 \, \sqrt {3} + 18\right )}^{\frac {3}{2}} + 342 \cdot 3^{\frac {3}{4}} \sqrt {2} \sqrt {6 \, \sqrt {3} + 18} {\left (\sqrt {3} - 3\right )} - 342 \cdot 3^{\frac {3}{4}} {\left (\sqrt {3} + 3\right )} \sqrt {-6 \, \sqrt {3} + 18} + 19 \cdot 3^{\frac {3}{4}} {\left (-6 \, \sqrt {3} + 18\right )}^{\frac {3}{2}} + 252 \cdot 3^{\frac {1}{4}} \sqrt {2} \sqrt {6 \, \sqrt {3} + 18} - 252 \cdot 3^{\frac {1}{4}} \sqrt {-6 \, \sqrt {3} + 18}\right )} \arctan \left (\frac {3^{\frac {3}{4}} {\left (x + 3^{\frac {1}{4}} \sqrt {-\frac {1}{6} \, \sqrt {3} + \frac {1}{2}}\right )}}{3 \, \sqrt {\frac {1}{6} \, \sqrt {3} + \frac {1}{2}}}\right ) + \frac {1}{62208} \, \sqrt {2} {\left (19 \cdot 3^{\frac {3}{4}} \sqrt {2} {\left (6 \, \sqrt {3} + 18\right )}^{\frac {3}{2}} + 342 \cdot 3^{\frac {3}{4}} \sqrt {2} \sqrt {6 \, \sqrt {3} + 18} {\left (\sqrt {3} - 3\right )} - 342 \cdot 3^{\frac {3}{4}} {\left (\sqrt {3} + 3\right )} \sqrt {-6 \, \sqrt {3} + 18} + 19 \cdot 3^{\frac {3}{4}} {\left (-6 \, \sqrt {3} + 18\right )}^{\frac {3}{2}} + 252 \cdot 3^{\frac {1}{4}} \sqrt {2} \sqrt {6 \, \sqrt {3} + 18} - 252 \cdot 3^{\frac {1}{4}} \sqrt {-6 \, \sqrt {3} + 18}\right )} \arctan \left (\frac {3^{\frac {3}{4}} {\left (x - 3^{\frac {1}{4}} \sqrt {-\frac {1}{6} \, \sqrt {3} + \frac {1}{2}}\right )}}{3 \, \sqrt {\frac {1}{6} \, \sqrt {3} + \frac {1}{2}}}\right ) + \frac {1}{124416} \, \sqrt {2} {\left (342 \cdot 3^{\frac {3}{4}} \sqrt {2} {\left (\sqrt {3} + 3\right )} \sqrt {-6 \, \sqrt {3} + 18} - 19 \cdot 3^{\frac {3}{4}} \sqrt {2} {\left (-6 \, \sqrt {3} + 18\right )}^{\frac {3}{2}} + 19 \cdot 3^{\frac {3}{4}} {\left (6 \, \sqrt {3} + 18\right )}^{\frac {3}{2}} + 342 \cdot 3^{\frac {3}{4}} \sqrt {6 \, \sqrt {3} + 18} {\left (\sqrt {3} - 3\right )} + 252 \cdot 3^{\frac {1}{4}} \sqrt {2} \sqrt {-6 \, \sqrt {3} + 18} + 252 \cdot 3^{\frac {1}{4}} \sqrt {6 \, \sqrt {3} + 18}\right )} \log \left (x^{2} + 2 \cdot 3^{\frac {1}{4}} x \sqrt {-\frac {1}{6} \, \sqrt {3} + \frac {1}{2}} + \sqrt {3}\right ) - \frac {1}{124416} \, \sqrt {2} {\left (342 \cdot 3^{\frac {3}{4}} \sqrt {2} {\left (\sqrt {3} + 3\right )} \sqrt {-6 \, \sqrt {3} + 18} - 19 \cdot 3^{\frac {3}{4}} \sqrt {2} {\left (-6 \, \sqrt {3} + 18\right )}^{\frac {3}{2}} + 19 \cdot 3^{\frac {3}{4}} {\left (6 \, \sqrt {3} + 18\right )}^{\frac {3}{2}} + 342 \cdot 3^{\frac {3}{4}} \sqrt {6 \, \sqrt {3} + 18} {\left (\sqrt {3} - 3\right )} + 252 \cdot 3^{\frac {1}{4}} \sqrt {2} \sqrt {-6 \, \sqrt {3} + 18} + 252 \cdot 3^{\frac {1}{4}} \sqrt {6 \, \sqrt {3} + 18}\right )} \log \left (x^{2} - 2 \cdot 3^{\frac {1}{4}} x \sqrt {-\frac {1}{6} \, \sqrt {3} + \frac {1}{2}} + \sqrt {3}\right ) - \frac {19 \, x^{4} + 63 \, x^{2} + 32}{24 \, {\left (x^{5} + 2 \, x^{3} + 3 \, x\right )}} \]
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Time = 0.10 (sec) , antiderivative size = 159, normalized size of antiderivative = 0.69 \[ \int \frac {4+x^2+3 x^4+5 x^6}{x^2 \left (3+2 x^2+x^4\right )^2} \, dx=-\frac {\frac {19\,x^4}{24}+\frac {21\,x^2}{8}+\frac {4}{3}}{x^5+2\,x^3+3\,x}-\frac {\mathrm {atan}\left (\frac {x\,\sqrt {2895-\sqrt {2}\,1551{}\mathrm {i}}\,517{}\mathrm {i}}{15552\,\left (\frac {517}{162}+\frac {\sqrt {2}\,3619{}\mathrm {i}}{10368}\right )}+\frac {517\,\sqrt {2}\,x\,\sqrt {2895-\sqrt {2}\,1551{}\mathrm {i}}}{31104\,\left (\frac {517}{162}+\frac {\sqrt {2}\,3619{}\mathrm {i}}{10368}\right )}\right )\,\sqrt {2895-\sqrt {2}\,1551{}\mathrm {i}}\,1{}\mathrm {i}}{144}+\frac {\mathrm {atan}\left (\frac {x\,\sqrt {2895+\sqrt {2}\,1551{}\mathrm {i}}\,517{}\mathrm {i}}{15552\,\left (-\frac {517}{162}+\frac {\sqrt {2}\,3619{}\mathrm {i}}{10368}\right )}-\frac {517\,\sqrt {2}\,x\,\sqrt {2895+\sqrt {2}\,1551{}\mathrm {i}}}{31104\,\left (-\frac {517}{162}+\frac {\sqrt {2}\,3619{}\mathrm {i}}{10368}\right )}\right )\,\sqrt {2895+\sqrt {2}\,1551{}\mathrm {i}}\,1{}\mathrm {i}}{144} \]
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