Integrand size = 9, antiderivative size = 17 \[ \int x \left (a+b x^3\right ) \, dx=\frac {a x^2}{2}+\frac {b x^5}{5} \]
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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 = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.111, Rules used = {14} \[ \int x \left (a+b x^3\right ) \, dx=\frac {a x^2}{2}+\frac {b x^5}{5} \]
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Rule 14
Rubi steps \begin{align*} \text {integral}& = \int \left (a x+b x^4\right ) \, dx \\ & = \frac {a x^2}{2}+\frac {b x^5}{5} \\ \end{align*}
Time = 0.00 (sec) , antiderivative size = 17, normalized size of antiderivative = 1.00 \[ \int x \left (a+b x^3\right ) \, dx=\frac {a x^2}{2}+\frac {b x^5}{5} \]
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Time = 0.02 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.82
method | result | size |
gosper | \(\frac {1}{2} a \,x^{2}+\frac {1}{5} b \,x^{5}\) | \(14\) |
default | \(\frac {1}{2} a \,x^{2}+\frac {1}{5} b \,x^{5}\) | \(14\) |
norman | \(\frac {1}{2} a \,x^{2}+\frac {1}{5} b \,x^{5}\) | \(14\) |
risch | \(\frac {1}{2} a \,x^{2}+\frac {1}{5} b \,x^{5}\) | \(14\) |
parallelrisch | \(\frac {1}{2} a \,x^{2}+\frac {1}{5} b \,x^{5}\) | \(14\) |
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none
Time = 0.26 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.76 \[ \int x \left (a+b x^3\right ) \, dx=\frac {1}{5} \, b x^{5} + \frac {1}{2} \, a x^{2} \]
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Time = 0.02 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.71 \[ \int x \left (a+b x^3\right ) \, dx=\frac {a x^{2}}{2} + \frac {b x^{5}}{5} \]
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none
Time = 0.19 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.76 \[ \int x \left (a+b x^3\right ) \, dx=\frac {1}{5} \, b x^{5} + \frac {1}{2} \, a x^{2} \]
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none
Time = 0.29 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.76 \[ \int x \left (a+b x^3\right ) \, dx=\frac {1}{5} \, b x^{5} + \frac {1}{2} \, a x^{2} \]
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Time = 0.02 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.76 \[ \int x \left (a+b x^3\right ) \, dx=\frac {b\,x^5}{5}+\frac {a\,x^2}{2} \]
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