Integrand size = 13, antiderivative size = 30 \[ \int \left (a+\frac {b}{x^2}\right )^2 x^6 \, dx=\frac {b^2 x^3}{3}+\frac {2}{5} a b x^5+\frac {a^2 x^7}{7} \]
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Time = 0.01 (sec) , antiderivative size = 30, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.154, Rules used = {269, 276} \[ \int \left (a+\frac {b}{x^2}\right )^2 x^6 \, dx=\frac {a^2 x^7}{7}+\frac {2}{5} a b x^5+\frac {b^2 x^3}{3} \]
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Rule 269
Rule 276
Rubi steps \begin{align*} \text {integral}& = \int x^2 \left (b+a x^2\right )^2 \, dx \\ & = \int \left (b^2 x^2+2 a b x^4+a^2 x^6\right ) \, dx \\ & = \frac {b^2 x^3}{3}+\frac {2}{5} a b x^5+\frac {a^2 x^7}{7} \\ \end{align*}
Time = 0.00 (sec) , antiderivative size = 30, normalized size of antiderivative = 1.00 \[ \int \left (a+\frac {b}{x^2}\right )^2 x^6 \, dx=\frac {b^2 x^3}{3}+\frac {2}{5} a b x^5+\frac {a^2 x^7}{7} \]
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Time = 0.06 (sec) , antiderivative size = 25, normalized size of antiderivative = 0.83
method | result | size |
default | \(\frac {1}{3} b^{2} x^{3}+\frac {2}{5} a b \,x^{5}+\frac {1}{7} a^{2} x^{7}\) | \(25\) |
risch | \(\frac {1}{3} b^{2} x^{3}+\frac {2}{5} a b \,x^{5}+\frac {1}{7} a^{2} x^{7}\) | \(25\) |
parallelrisch | \(\frac {1}{3} b^{2} x^{3}+\frac {2}{5} a b \,x^{5}+\frac {1}{7} a^{2} x^{7}\) | \(25\) |
gosper | \(\frac {x^{3} \left (15 a^{2} x^{4}+42 a b \,x^{2}+35 b^{2}\right )}{105}\) | \(27\) |
norman | \(\frac {\frac {1}{7} a^{2} x^{10}+\frac {1}{3} b^{2} x^{6}+\frac {2}{5} a b \,x^{8}}{x^{3}}\) | \(29\) |
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Time = 0.25 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.80 \[ \int \left (a+\frac {b}{x^2}\right )^2 x^6 \, dx=\frac {1}{7} \, a^{2} x^{7} + \frac {2}{5} \, a b x^{5} + \frac {1}{3} \, b^{2} x^{3} \]
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Time = 0.02 (sec) , antiderivative size = 26, normalized size of antiderivative = 0.87 \[ \int \left (a+\frac {b}{x^2}\right )^2 x^6 \, dx=\frac {a^{2} x^{7}}{7} + \frac {2 a b x^{5}}{5} + \frac {b^{2} x^{3}}{3} \]
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Time = 0.20 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.80 \[ \int \left (a+\frac {b}{x^2}\right )^2 x^6 \, dx=\frac {1}{7} \, a^{2} x^{7} + \frac {2}{5} \, a b x^{5} + \frac {1}{3} \, b^{2} x^{3} \]
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Time = 0.28 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.80 \[ \int \left (a+\frac {b}{x^2}\right )^2 x^6 \, dx=\frac {1}{7} \, a^{2} x^{7} + \frac {2}{5} \, a b x^{5} + \frac {1}{3} \, b^{2} x^{3} \]
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Time = 5.93 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.80 \[ \int \left (a+\frac {b}{x^2}\right )^2 x^6 \, dx=\frac {a^2\,x^7}{7}+\frac {2\,a\,b\,x^5}{5}+\frac {b^2\,x^3}{3} \]
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