Integrand size = 26, antiderivative size = 167 \[ \int \frac {\left (a^2+2 a b x^3+b^2 x^6\right )^{3/2}}{x^{14}} \, dx=-\frac {a^3 \sqrt {a^2+2 a b x^3+b^2 x^6}}{13 x^{13} \left (a+b x^3\right )}-\frac {3 a^2 b \sqrt {a^2+2 a b x^3+b^2 x^6}}{10 x^{10} \left (a+b x^3\right )}-\frac {3 a b^2 \sqrt {a^2+2 a b x^3+b^2 x^6}}{7 x^7 \left (a+b x^3\right )}-\frac {b^3 \sqrt {a^2+2 a b x^3+b^2 x^6}}{4 x^4 \left (a+b x^3\right )} \]
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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 = {1369, 276} \[ \int \frac {\left (a^2+2 a b x^3+b^2 x^6\right )^{3/2}}{x^{14}} \, dx=-\frac {3 a^2 b \sqrt {a^2+2 a b x^3+b^2 x^6}}{10 x^{10} \left (a+b x^3\right )}-\frac {3 a b^2 \sqrt {a^2+2 a b x^3+b^2 x^6}}{7 x^7 \left (a+b x^3\right )}-\frac {b^3 \sqrt {a^2+2 a b x^3+b^2 x^6}}{4 x^4 \left (a+b x^3\right )}-\frac {a^3 \sqrt {a^2+2 a b x^3+b^2 x^6}}{13 x^{13} \left (a+b x^3\right )} \]
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Rule 276
Rule 1369
Rubi steps \begin{align*} \text {integral}& = \frac {\sqrt {a^2+2 a b x^3+b^2 x^6} \int \frac {\left (a b+b^2 x^3\right )^3}{x^{14}} \, dx}{b^2 \left (a b+b^2 x^3\right )} \\ & = \frac {\sqrt {a^2+2 a b x^3+b^2 x^6} \int \left (\frac {a^3 b^3}{x^{14}}+\frac {3 a^2 b^4}{x^{11}}+\frac {3 a b^5}{x^8}+\frac {b^6}{x^5}\right ) \, dx}{b^2 \left (a b+b^2 x^3\right )} \\ & = -\frac {a^3 \sqrt {a^2+2 a b x^3+b^2 x^6}}{13 x^{13} \left (a+b x^3\right )}-\frac {3 a^2 b \sqrt {a^2+2 a b x^3+b^2 x^6}}{10 x^{10} \left (a+b x^3\right )}-\frac {3 a b^2 \sqrt {a^2+2 a b x^3+b^2 x^6}}{7 x^7 \left (a+b x^3\right )}-\frac {b^3 \sqrt {a^2+2 a b x^3+b^2 x^6}}{4 x^4 \left (a+b x^3\right )} \\ \end{align*}
Time = 1.01 (sec) , antiderivative size = 61, normalized size of antiderivative = 0.37 \[ \int \frac {\left (a^2+2 a b x^3+b^2 x^6\right )^{3/2}}{x^{14}} \, dx=-\frac {\sqrt {\left (a+b x^3\right )^2} \left (140 a^3+546 a^2 b x^3+780 a b^2 x^6+455 b^3 x^9\right )}{1820 x^{13} \left (a+b x^3\right )} \]
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Time = 16.68 (sec) , antiderivative size = 57, normalized size of antiderivative = 0.34
method | result | size |
risch | \(\frac {\sqrt {\left (b \,x^{3}+a \right )^{2}}\, \left (-\frac {1}{4} b^{3} x^{9}-\frac {3}{7} b^{2} x^{6} a -\frac {3}{10} a^{2} b \,x^{3}-\frac {1}{13} a^{3}\right )}{\left (b \,x^{3}+a \right ) x^{13}}\) | \(57\) |
gosper | \(-\frac {\left (455 b^{3} x^{9}+780 b^{2} x^{6} a +546 a^{2} b \,x^{3}+140 a^{3}\right ) {\left (\left (b \,x^{3}+a \right )^{2}\right )}^{\frac {3}{2}}}{1820 x^{13} \left (b \,x^{3}+a \right )^{3}}\) | \(58\) |
default | \(-\frac {\left (455 b^{3} x^{9}+780 b^{2} x^{6} a +546 a^{2} b \,x^{3}+140 a^{3}\right ) {\left (\left (b \,x^{3}+a \right )^{2}\right )}^{\frac {3}{2}}}{1820 x^{13} \left (b \,x^{3}+a \right )^{3}}\) | \(58\) |
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Time = 0.26 (sec) , antiderivative size = 37, normalized size of antiderivative = 0.22 \[ \int \frac {\left (a^2+2 a b x^3+b^2 x^6\right )^{3/2}}{x^{14}} \, dx=-\frac {455 \, b^{3} x^{9} + 780 \, a b^{2} x^{6} + 546 \, a^{2} b x^{3} + 140 \, a^{3}}{1820 \, x^{13}} \]
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\[ \int \frac {\left (a^2+2 a b x^3+b^2 x^6\right )^{3/2}}{x^{14}} \, dx=\int \frac {\left (\left (a + b x^{3}\right )^{2}\right )^{\frac {3}{2}}}{x^{14}}\, dx \]
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Time = 0.21 (sec) , antiderivative size = 37, normalized size of antiderivative = 0.22 \[ \int \frac {\left (a^2+2 a b x^3+b^2 x^6\right )^{3/2}}{x^{14}} \, dx=-\frac {455 \, b^{3} x^{9} + 780 \, a b^{2} x^{6} + 546 \, a^{2} b x^{3} + 140 \, a^{3}}{1820 \, x^{13}} \]
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Time = 0.33 (sec) , antiderivative size = 69, normalized size of antiderivative = 0.41 \[ \int \frac {\left (a^2+2 a b x^3+b^2 x^6\right )^{3/2}}{x^{14}} \, dx=-\frac {455 \, b^{3} x^{9} \mathrm {sgn}\left (b x^{3} + a\right ) + 780 \, a b^{2} x^{6} \mathrm {sgn}\left (b x^{3} + a\right ) + 546 \, a^{2} b x^{3} \mathrm {sgn}\left (b x^{3} + a\right ) + 140 \, a^{3} \mathrm {sgn}\left (b x^{3} + a\right )}{1820 \, x^{13}} \]
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Time = 8.16 (sec) , antiderivative size = 151, normalized size of antiderivative = 0.90 \[ \int \frac {\left (a^2+2 a b x^3+b^2 x^6\right )^{3/2}}{x^{14}} \, dx=-\frac {a^3\,\sqrt {a^2+2\,a\,b\,x^3+b^2\,x^6}}{13\,x^{13}\,\left (b\,x^3+a\right )}-\frac {b^3\,\sqrt {a^2+2\,a\,b\,x^3+b^2\,x^6}}{4\,x^4\,\left (b\,x^3+a\right )}-\frac {3\,a\,b^2\,\sqrt {a^2+2\,a\,b\,x^3+b^2\,x^6}}{7\,x^7\,\left (b\,x^3+a\right )}-\frac {3\,a^2\,b\,\sqrt {a^2+2\,a\,b\,x^3+b^2\,x^6}}{10\,x^{10}\,\left (b\,x^3+a\right )} \]
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