Integrand size = 9, antiderivative size = 17 \[ \int \left (b x^2\right )^{3/2} \, dx=\frac {1}{4} b x^3 \sqrt {b x^2} \]
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Time = 0.00 (sec) , antiderivative size = 17, 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} \[ \int \left (b x^2\right )^{3/2} \, dx=\frac {1}{4} b x^3 \sqrt {b x^2} \]
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Rule 15
Rule 30
Rubi steps \begin{align*} \text {integral}& = \frac {\left (b \sqrt {b x^2}\right ) \int x^3 \, dx}{x} \\ & = \frac {1}{4} b x^3 \sqrt {b x^2} \\ \end{align*}
Time = 0.00 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.82 \[ \int \left (b x^2\right )^{3/2} \, dx=\frac {1}{4} x \left (b x^2\right )^{3/2} \]
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Time = 0.04 (sec) , antiderivative size = 11, normalized size of antiderivative = 0.65
method | result | size |
gosper | \(\frac {x \left (b \,x^{2}\right )^{\frac {3}{2}}}{4}\) | \(11\) |
default | \(\frac {x \left (b \,x^{2}\right )^{\frac {3}{2}}}{4}\) | \(11\) |
risch | \(\frac {b \,x^{3} \sqrt {b \,x^{2}}}{4}\) | \(14\) |
trager | \(\frac {b \left (x^{3}+x^{2}+x +1\right ) \left (-1+x \right ) \sqrt {b \,x^{2}}}{4 x}\) | \(26\) |
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none
Time = 0.26 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.76 \[ \int \left (b x^2\right )^{3/2} \, dx=\frac {1}{4} \, \sqrt {b x^{2}} b x^{3} \]
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Time = 0.11 (sec) , antiderivative size = 10, normalized size of antiderivative = 0.59 \[ \int \left (b x^2\right )^{3/2} \, dx=\frac {x \left (b x^{2}\right )^{\frac {3}{2}}}{4} \]
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none
Time = 0.19 (sec) , antiderivative size = 10, normalized size of antiderivative = 0.59 \[ \int \left (b x^2\right )^{3/2} \, dx=\frac {1}{4} \, \left (b x^{2}\right )^{\frac {3}{2}} x \]
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none
Time = 0.28 (sec) , antiderivative size = 10, normalized size of antiderivative = 0.59 \[ \int \left (b x^2\right )^{3/2} \, dx=\frac {1}{4} \, b^{\frac {3}{2}} x^{4} \mathrm {sgn}\left (x\right ) \]
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Timed out. \[ \int \left (b x^2\right )^{3/2} \, dx=\int {\left (b\,x^2\right )}^{3/2} \,d x \]
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