Integrand size = 24, antiderivative size = 56 \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^2}{x^{14}} \, dx=-\frac {a^4}{13 x^{13}}-\frac {4 a^3 b}{11 x^{11}}-\frac {2 a^2 b^2}{3 x^9}-\frac {4 a b^3}{7 x^7}-\frac {b^4}{5 x^5} \]
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Time = 0.02 (sec) , antiderivative size = 56, 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} \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^2}{x^{14}} \, dx=-\frac {a^4}{13 x^{13}}-\frac {4 a^3 b}{11 x^{11}}-\frac {2 a^2 b^2}{3 x^9}-\frac {4 a b^3}{7 x^7}-\frac {b^4}{5 x^5} \]
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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 )^4}{x^{14}} \, dx}{b^4} \\ & = \frac {\int \left (\frac {a^4 b^4}{x^{14}}+\frac {4 a^3 b^5}{x^{12}}+\frac {6 a^2 b^6}{x^{10}}+\frac {4 a b^7}{x^8}+\frac {b^8}{x^6}\right ) \, dx}{b^4} \\ & = -\frac {a^4}{13 x^{13}}-\frac {4 a^3 b}{11 x^{11}}-\frac {2 a^2 b^2}{3 x^9}-\frac {4 a b^3}{7 x^7}-\frac {b^4}{5 x^5} \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 56, normalized size of antiderivative = 1.00 \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^2}{x^{14}} \, dx=-\frac {a^4}{13 x^{13}}-\frac {4 a^3 b}{11 x^{11}}-\frac {2 a^2 b^2}{3 x^9}-\frac {4 a b^3}{7 x^7}-\frac {b^4}{5 x^5} \]
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Time = 0.04 (sec) , antiderivative size = 47, normalized size of antiderivative = 0.84
method | result | size |
default | \(-\frac {a^{4}}{13 x^{13}}-\frac {4 a^{3} b}{11 x^{11}}-\frac {2 a^{2} b^{2}}{3 x^{9}}-\frac {4 a \,b^{3}}{7 x^{7}}-\frac {b^{4}}{5 x^{5}}\) | \(47\) |
norman | \(\frac {-\frac {1}{5} b^{4} x^{8}-\frac {4}{7} a \,b^{3} x^{6}-\frac {2}{3} a^{2} b^{2} x^{4}-\frac {4}{11} a^{3} b \,x^{2}-\frac {1}{13} a^{4}}{x^{13}}\) | \(48\) |
risch | \(\frac {-\frac {1}{5} b^{4} x^{8}-\frac {4}{7} a \,b^{3} x^{6}-\frac {2}{3} a^{2} b^{2} x^{4}-\frac {4}{11} a^{3} b \,x^{2}-\frac {1}{13} a^{4}}{x^{13}}\) | \(48\) |
gosper | \(-\frac {3003 b^{4} x^{8}+8580 a \,b^{3} x^{6}+10010 a^{2} b^{2} x^{4}+5460 a^{3} b \,x^{2}+1155 a^{4}}{15015 x^{13}}\) | \(49\) |
parallelrisch | \(\frac {-3003 b^{4} x^{8}-8580 a \,b^{3} x^{6}-10010 a^{2} b^{2} x^{4}-5460 a^{3} b \,x^{2}-1155 a^{4}}{15015 x^{13}}\) | \(49\) |
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Time = 0.27 (sec) , antiderivative size = 48, normalized size of antiderivative = 0.86 \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^2}{x^{14}} \, dx=-\frac {3003 \, b^{4} x^{8} + 8580 \, a b^{3} x^{6} + 10010 \, a^{2} b^{2} x^{4} + 5460 \, a^{3} b x^{2} + 1155 \, a^{4}}{15015 \, x^{13}} \]
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Time = 0.19 (sec) , antiderivative size = 51, normalized size of antiderivative = 0.91 \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^2}{x^{14}} \, dx=\frac {- 1155 a^{4} - 5460 a^{3} b x^{2} - 10010 a^{2} b^{2} x^{4} - 8580 a b^{3} x^{6} - 3003 b^{4} x^{8}}{15015 x^{13}} \]
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Time = 0.18 (sec) , antiderivative size = 48, normalized size of antiderivative = 0.86 \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^2}{x^{14}} \, dx=-\frac {3003 \, b^{4} x^{8} + 8580 \, a b^{3} x^{6} + 10010 \, a^{2} b^{2} x^{4} + 5460 \, a^{3} b x^{2} + 1155 \, a^{4}}{15015 \, x^{13}} \]
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Time = 0.27 (sec) , antiderivative size = 48, normalized size of antiderivative = 0.86 \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^2}{x^{14}} \, dx=-\frac {3003 \, b^{4} x^{8} + 8580 \, a b^{3} x^{6} + 10010 \, a^{2} b^{2} x^{4} + 5460 \, a^{3} b x^{2} + 1155 \, a^{4}}{15015 \, x^{13}} \]
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Time = 0.04 (sec) , antiderivative size = 48, normalized size of antiderivative = 0.86 \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^2}{x^{14}} \, dx=-\frac {\frac {a^4}{13}+\frac {4\,a^3\,b\,x^2}{11}+\frac {2\,a^2\,b^2\,x^4}{3}+\frac {4\,a\,b^3\,x^6}{7}+\frac {b^4\,x^8}{5}}{x^{13}} \]
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