Integrand size = 11, antiderivative size = 30 \[ \int \frac {(a+b x)^2}{x^6} \, dx=-\frac {a^2}{5 x^5}-\frac {a b}{2 x^4}-\frac {b^2}{3 x^3} \]
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Time = 0.01 (sec) , antiderivative size = 30, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.091, Rules used = {45} \[ \int \frac {(a+b x)^2}{x^6} \, dx=-\frac {a^2}{5 x^5}-\frac {a b}{2 x^4}-\frac {b^2}{3 x^3} \]
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Rule 45
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {a^2}{x^6}+\frac {2 a b}{x^5}+\frac {b^2}{x^4}\right ) \, dx \\ & = -\frac {a^2}{5 x^5}-\frac {a b}{2 x^4}-\frac {b^2}{3 x^3} \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 30, normalized size of antiderivative = 1.00 \[ \int \frac {(a+b x)^2}{x^6} \, dx=-\frac {a^2}{5 x^5}-\frac {a b}{2 x^4}-\frac {b^2}{3 x^3} \]
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Time = 0.16 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.80
method | result | size |
norman | \(\frac {-\frac {1}{3} b^{2} x^{2}-\frac {1}{2} a b x -\frac {1}{5} a^{2}}{x^{5}}\) | \(24\) |
risch | \(\frac {-\frac {1}{3} b^{2} x^{2}-\frac {1}{2} a b x -\frac {1}{5} a^{2}}{x^{5}}\) | \(24\) |
gosper | \(-\frac {10 b^{2} x^{2}+15 a b x +6 a^{2}}{30 x^{5}}\) | \(25\) |
default | \(-\frac {a^{2}}{5 x^{5}}-\frac {a b}{2 x^{4}}-\frac {b^{2}}{3 x^{3}}\) | \(25\) |
parallelrisch | \(\frac {-10 b^{2} x^{2}-15 a b x -6 a^{2}}{30 x^{5}}\) | \(25\) |
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Time = 0.21 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.80 \[ \int \frac {(a+b x)^2}{x^6} \, dx=-\frac {10 \, b^{2} x^{2} + 15 \, a b x + 6 \, a^{2}}{30 \, x^{5}} \]
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Time = 0.10 (sec) , antiderivative size = 26, normalized size of antiderivative = 0.87 \[ \int \frac {(a+b x)^2}{x^6} \, dx=\frac {- 6 a^{2} - 15 a b x - 10 b^{2} x^{2}}{30 x^{5}} \]
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Time = 0.20 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.80 \[ \int \frac {(a+b x)^2}{x^6} \, dx=-\frac {10 \, b^{2} x^{2} + 15 \, a b x + 6 \, a^{2}}{30 \, x^{5}} \]
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Time = 0.30 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.80 \[ \int \frac {(a+b x)^2}{x^6} \, dx=-\frac {10 \, b^{2} x^{2} + 15 \, a b x + 6 \, a^{2}}{30 \, x^{5}} \]
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Time = 0.02 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.80 \[ \int \frac {(a+b x)^2}{x^6} \, dx=-\frac {\frac {a^2}{5}+\frac {a\,b\,x}{2}+\frac {b^2\,x^2}{3}}{x^5} \]
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