Integrand size = 24, antiderivative size = 82 \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^3}{x^{18}} \, dx=-\frac {a^6}{17 x^{17}}-\frac {2 a^5 b}{5 x^{15}}-\frac {15 a^4 b^2}{13 x^{13}}-\frac {20 a^3 b^3}{11 x^{11}}-\frac {5 a^2 b^4}{3 x^9}-\frac {6 a b^5}{7 x^7}-\frac {b^6}{5 x^5} \]
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Time = 0.03 (sec) , antiderivative size = 82, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.083, Rules used = {28, 276} \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^3}{x^{18}} \, dx=-\frac {a^6}{17 x^{17}}-\frac {2 a^5 b}{5 x^{15}}-\frac {15 a^4 b^2}{13 x^{13}}-\frac {20 a^3 b^3}{11 x^{11}}-\frac {5 a^2 b^4}{3 x^9}-\frac {6 a b^5}{7 x^7}-\frac {b^6}{5 x^5} \]
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Rule 28
Rule 276
Rubi steps \begin{align*} \text {integral}& = \frac {\int \frac {\left (a b+b^2 x^2\right )^6}{x^{18}} \, dx}{b^6} \\ & = \frac {\int \left (\frac {a^6 b^6}{x^{18}}+\frac {6 a^5 b^7}{x^{16}}+\frac {15 a^4 b^8}{x^{14}}+\frac {20 a^3 b^9}{x^{12}}+\frac {15 a^2 b^{10}}{x^{10}}+\frac {6 a b^{11}}{x^8}+\frac {b^{12}}{x^6}\right ) \, dx}{b^6} \\ & = -\frac {a^6}{17 x^{17}}-\frac {2 a^5 b}{5 x^{15}}-\frac {15 a^4 b^2}{13 x^{13}}-\frac {20 a^3 b^3}{11 x^{11}}-\frac {5 a^2 b^4}{3 x^9}-\frac {6 a b^5}{7 x^7}-\frac {b^6}{5 x^5} \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 82, normalized size of antiderivative = 1.00 \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^3}{x^{18}} \, dx=-\frac {a^6}{17 x^{17}}-\frac {2 a^5 b}{5 x^{15}}-\frac {15 a^4 b^2}{13 x^{13}}-\frac {20 a^3 b^3}{11 x^{11}}-\frac {5 a^2 b^4}{3 x^9}-\frac {6 a b^5}{7 x^7}-\frac {b^6}{5 x^5} \]
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Time = 0.04 (sec) , antiderivative size = 69, normalized size of antiderivative = 0.84
method | result | size |
default | \(-\frac {a^{6}}{17 x^{17}}-\frac {2 a^{5} b}{5 x^{15}}-\frac {15 a^{4} b^{2}}{13 x^{13}}-\frac {20 a^{3} b^{3}}{11 x^{11}}-\frac {5 a^{2} b^{4}}{3 x^{9}}-\frac {6 a \,b^{5}}{7 x^{7}}-\frac {b^{6}}{5 x^{5}}\) | \(69\) |
norman | \(\frac {-\frac {1}{17} a^{6}-\frac {2}{5} a^{5} b \,x^{2}-\frac {15}{13} a^{4} b^{2} x^{4}-\frac {20}{11} a^{3} b^{3} x^{6}-\frac {5}{3} a^{2} b^{4} x^{8}-\frac {6}{7} a \,b^{5} x^{10}-\frac {1}{5} b^{6} x^{12}}{x^{17}}\) | \(70\) |
risch | \(\frac {-\frac {1}{17} a^{6}-\frac {2}{5} a^{5} b \,x^{2}-\frac {15}{13} a^{4} b^{2} x^{4}-\frac {20}{11} a^{3} b^{3} x^{6}-\frac {5}{3} a^{2} b^{4} x^{8}-\frac {6}{7} a \,b^{5} x^{10}-\frac {1}{5} b^{6} x^{12}}{x^{17}}\) | \(70\) |
gosper | \(-\frac {51051 b^{6} x^{12}+218790 a \,b^{5} x^{10}+425425 a^{2} b^{4} x^{8}+464100 a^{3} b^{3} x^{6}+294525 a^{4} b^{2} x^{4}+102102 a^{5} b \,x^{2}+15015 a^{6}}{255255 x^{17}}\) | \(71\) |
parallelrisch | \(\frac {-51051 b^{6} x^{12}-218790 a \,b^{5} x^{10}-425425 a^{2} b^{4} x^{8}-464100 a^{3} b^{3} x^{6}-294525 a^{4} b^{2} x^{4}-102102 a^{5} b \,x^{2}-15015 a^{6}}{255255 x^{17}}\) | \(71\) |
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Time = 0.24 (sec) , antiderivative size = 70, normalized size of antiderivative = 0.85 \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^3}{x^{18}} \, dx=-\frac {51051 \, b^{6} x^{12} + 218790 \, a b^{5} x^{10} + 425425 \, a^{2} b^{4} x^{8} + 464100 \, a^{3} b^{3} x^{6} + 294525 \, a^{4} b^{2} x^{4} + 102102 \, a^{5} b x^{2} + 15015 \, a^{6}}{255255 \, x^{17}} \]
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Time = 0.30 (sec) , antiderivative size = 75, normalized size of antiderivative = 0.91 \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^3}{x^{18}} \, dx=\frac {- 15015 a^{6} - 102102 a^{5} b x^{2} - 294525 a^{4} b^{2} x^{4} - 464100 a^{3} b^{3} x^{6} - 425425 a^{2} b^{4} x^{8} - 218790 a b^{5} x^{10} - 51051 b^{6} x^{12}}{255255 x^{17}} \]
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Time = 0.19 (sec) , antiderivative size = 70, normalized size of antiderivative = 0.85 \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^3}{x^{18}} \, dx=-\frac {51051 \, b^{6} x^{12} + 218790 \, a b^{5} x^{10} + 425425 \, a^{2} b^{4} x^{8} + 464100 \, a^{3} b^{3} x^{6} + 294525 \, a^{4} b^{2} x^{4} + 102102 \, a^{5} b x^{2} + 15015 \, a^{6}}{255255 \, x^{17}} \]
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Time = 0.27 (sec) , antiderivative size = 70, normalized size of antiderivative = 0.85 \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^3}{x^{18}} \, dx=-\frac {51051 \, b^{6} x^{12} + 218790 \, a b^{5} x^{10} + 425425 \, a^{2} b^{4} x^{8} + 464100 \, a^{3} b^{3} x^{6} + 294525 \, a^{4} b^{2} x^{4} + 102102 \, a^{5} b x^{2} + 15015 \, a^{6}}{255255 \, x^{17}} \]
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Time = 0.05 (sec) , antiderivative size = 70, normalized size of antiderivative = 0.85 \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^3}{x^{18}} \, dx=-\frac {\frac {a^6}{17}+\frac {2\,a^5\,b\,x^2}{5}+\frac {15\,a^4\,b^2\,x^4}{13}+\frac {20\,a^3\,b^3\,x^6}{11}+\frac {5\,a^2\,b^4\,x^8}{3}+\frac {6\,a\,b^5\,x^{10}}{7}+\frac {b^6\,x^{12}}{5}}{x^{17}} \]
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