Integrand size = 26, antiderivative size = 167 \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^{3/2}}{x^{12}} \, dx=-\frac {a^3 \sqrt {a^2+2 a b x^2+b^2 x^4}}{11 x^{11} \left (a+b x^2\right )}-\frac {a^2 b \sqrt {a^2+2 a b x^2+b^2 x^4}}{3 x^9 \left (a+b x^2\right )}-\frac {3 a b^2 \sqrt {a^2+2 a b x^2+b^2 x^4}}{7 x^7 \left (a+b x^2\right )}-\frac {b^3 \sqrt {a^2+2 a b x^2+b^2 x^4}}{5 x^5 \left (a+b x^2\right )} \]
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Time = 0.03 (sec) , antiderivative size = 167, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.077, Rules used = {1126, 276} \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^{3/2}}{x^{12}} \, dx=-\frac {a^2 b \sqrt {a^2+2 a b x^2+b^2 x^4}}{3 x^9 \left (a+b x^2\right )}-\frac {3 a b^2 \sqrt {a^2+2 a b x^2+b^2 x^4}}{7 x^7 \left (a+b x^2\right )}-\frac {b^3 \sqrt {a^2+2 a b x^2+b^2 x^4}}{5 x^5 \left (a+b x^2\right )}-\frac {a^3 \sqrt {a^2+2 a b x^2+b^2 x^4}}{11 x^{11} \left (a+b x^2\right )} \]
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Rule 276
Rule 1126
Rubi steps \begin{align*} \text {integral}& = \frac {\sqrt {a^2+2 a b x^2+b^2 x^4} \int \frac {\left (a b+b^2 x^2\right )^3}{x^{12}} \, dx}{b^2 \left (a b+b^2 x^2\right )} \\ & = \frac {\sqrt {a^2+2 a b x^2+b^2 x^4} \int \left (\frac {a^3 b^3}{x^{12}}+\frac {3 a^2 b^4}{x^{10}}+\frac {3 a b^5}{x^8}+\frac {b^6}{x^6}\right ) \, dx}{b^2 \left (a b+b^2 x^2\right )} \\ & = -\frac {a^3 \sqrt {a^2+2 a b x^2+b^2 x^4}}{11 x^{11} \left (a+b x^2\right )}-\frac {a^2 b \sqrt {a^2+2 a b x^2+b^2 x^4}}{3 x^9 \left (a+b x^2\right )}-\frac {3 a b^2 \sqrt {a^2+2 a b x^2+b^2 x^4}}{7 x^7 \left (a+b x^2\right )}-\frac {b^3 \sqrt {a^2+2 a b x^2+b^2 x^4}}{5 x^5 \left (a+b x^2\right )} \\ \end{align*}
Time = 1.01 (sec) , antiderivative size = 61, normalized size of antiderivative = 0.37 \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^{3/2}}{x^{12}} \, dx=-\frac {\sqrt {\left (a+b x^2\right )^2} \left (105 a^3+385 a^2 b x^2+495 a b^2 x^4+231 b^3 x^6\right )}{1155 x^{11} \left (a+b x^2\right )} \]
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Time = 5.47 (sec) , antiderivative size = 57, normalized size of antiderivative = 0.34
method | result | size |
risch | \(\frac {\sqrt {\left (b \,x^{2}+a \right )^{2}}\, \left (-\frac {1}{5} b^{3} x^{6}-\frac {3}{7} b^{2} x^{4} a -\frac {1}{3} a^{2} b \,x^{2}-\frac {1}{11} a^{3}\right )}{\left (b \,x^{2}+a \right ) x^{11}}\) | \(57\) |
gosper | \(-\frac {\left (231 b^{3} x^{6}+495 b^{2} x^{4} a +385 a^{2} b \,x^{2}+105 a^{3}\right ) {\left (\left (b \,x^{2}+a \right )^{2}\right )}^{\frac {3}{2}}}{1155 x^{11} \left (b \,x^{2}+a \right )^{3}}\) | \(58\) |
default | \(-\frac {\left (231 b^{3} x^{6}+495 b^{2} x^{4} a +385 a^{2} b \,x^{2}+105 a^{3}\right ) {\left (\left (b \,x^{2}+a \right )^{2}\right )}^{\frac {3}{2}}}{1155 x^{11} \left (b \,x^{2}+a \right )^{3}}\) | \(58\) |
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Time = 0.24 (sec) , antiderivative size = 37, normalized size of antiderivative = 0.22 \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^{3/2}}{x^{12}} \, dx=-\frac {231 \, b^{3} x^{6} + 495 \, a b^{2} x^{4} + 385 \, a^{2} b x^{2} + 105 \, a^{3}}{1155 \, x^{11}} \]
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\[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^{3/2}}{x^{12}} \, dx=\int \frac {\left (\left (a + b x^{2}\right )^{2}\right )^{\frac {3}{2}}}{x^{12}}\, dx \]
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Time = 0.20 (sec) , antiderivative size = 35, normalized size of antiderivative = 0.21 \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^{3/2}}{x^{12}} \, dx=-\frac {b^{3}}{5 \, x^{5}} - \frac {3 \, a b^{2}}{7 \, x^{7}} - \frac {a^{2} b}{3 \, x^{9}} - \frac {a^{3}}{11 \, x^{11}} \]
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Time = 0.27 (sec) , antiderivative size = 69, normalized size of antiderivative = 0.41 \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^{3/2}}{x^{12}} \, dx=-\frac {231 \, b^{3} x^{6} \mathrm {sgn}\left (b x^{2} + a\right ) + 495 \, a b^{2} x^{4} \mathrm {sgn}\left (b x^{2} + a\right ) + 385 \, a^{2} b x^{2} \mathrm {sgn}\left (b x^{2} + a\right ) + 105 \, a^{3} \mathrm {sgn}\left (b x^{2} + a\right )}{1155 \, x^{11}} \]
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Time = 13.11 (sec) , antiderivative size = 151, normalized size of antiderivative = 0.90 \[ \int \frac {\left (a^2+2 a b x^2+b^2 x^4\right )^{3/2}}{x^{12}} \, dx=-\frac {a^3\,\sqrt {a^2+2\,a\,b\,x^2+b^2\,x^4}}{11\,x^{11}\,\left (b\,x^2+a\right )}-\frac {b^3\,\sqrt {a^2+2\,a\,b\,x^2+b^2\,x^4}}{5\,x^5\,\left (b\,x^2+a\right )}-\frac {3\,a\,b^2\,\sqrt {a^2+2\,a\,b\,x^2+b^2\,x^4}}{7\,x^7\,\left (b\,x^2+a\right )}-\frac {a^2\,b\,\sqrt {a^2+2\,a\,b\,x^2+b^2\,x^4}}{3\,x^9\,\left (b\,x^2+a\right )} \]
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