Integrand size = 9, antiderivative size = 19 \[ \int \frac {1}{\left (\frac {b}{x^2}\right )^{3/2}} \, dx=\frac {x^3}{4 b \sqrt {\frac {b}{x^2}}} \]
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Time = 0.00 (sec) , antiderivative size = 19, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.222, Rules used = {15, 30} \[ \int \frac {1}{\left (\frac {b}{x^2}\right )^{3/2}} \, dx=\frac {x^3}{4 b \sqrt {\frac {b}{x^2}}} \]
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Rule 15
Rule 30
Rubi steps \begin{align*} \text {integral}& = \frac {\int x^3 \, dx}{b \sqrt {\frac {b}{x^2}} x} \\ & = \frac {x^3}{4 b \sqrt {\frac {b}{x^2}}} \\ \end{align*}
Time = 0.00 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.74 \[ \int \frac {1}{\left (\frac {b}{x^2}\right )^{3/2}} \, dx=\frac {x}{4 \left (\frac {b}{x^2}\right )^{3/2}} \]
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Time = 0.04 (sec) , antiderivative size = 11, normalized size of antiderivative = 0.58
method | result | size |
gosper | \(\frac {x}{4 \left (\frac {b}{x^{2}}\right )^{\frac {3}{2}}}\) | \(11\) |
default | \(\frac {x}{4 \left (\frac {b}{x^{2}}\right )^{\frac {3}{2}}}\) | \(11\) |
risch | \(\frac {x^{3}}{4 b \sqrt {\frac {b}{x^{2}}}}\) | \(16\) |
trager | \(\frac {x \left (x^{3}+x^{2}+x +1\right ) \left (-1+x \right ) \sqrt {\frac {b}{x^{2}}}}{4 b^{2}}\) | \(26\) |
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none
Time = 0.25 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.79 \[ \int \frac {1}{\left (\frac {b}{x^2}\right )^{3/2}} \, dx=\frac {x^{5} \sqrt {\frac {b}{x^{2}}}}{4 \, b^{2}} \]
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Time = 0.20 (sec) , antiderivative size = 10, normalized size of antiderivative = 0.53 \[ \int \frac {1}{\left (\frac {b}{x^2}\right )^{3/2}} \, dx=\frac {x}{4 \left (\frac {b}{x^{2}}\right )^{\frac {3}{2}}} \]
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none
Time = 0.21 (sec) , antiderivative size = 10, normalized size of antiderivative = 0.53 \[ \int \frac {1}{\left (\frac {b}{x^2}\right )^{3/2}} \, dx=\frac {x}{4 \, \left (\frac {b}{x^{2}}\right )^{\frac {3}{2}}} \]
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none
Time = 0.27 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.63 \[ \int \frac {1}{\left (\frac {b}{x^2}\right )^{3/2}} \, dx=\frac {x^{4}}{4 \, b^{\frac {3}{2}} \mathrm {sgn}\left (x\right )} \]
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Time = 5.46 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.68 \[ \int \frac {1}{\left (\frac {b}{x^2}\right )^{3/2}} \, dx=\frac {x^5\,\sqrt {\frac {1}{x^2}}}{4\,b^{3/2}} \]
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