Integrand size = 11, antiderivative size = 34 \[ \int \frac {x}{\sqrt [3]{a+b x}} \, dx=-\frac {3 a (a+b x)^{2/3}}{2 b^2}+\frac {3 (a+b x)^{5/3}}{5 b^2} \]
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Time = 0.01 (sec) , antiderivative size = 34, 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} \[ \int \frac {x}{\sqrt [3]{a+b x}} \, dx=\frac {3 (a+b x)^{5/3}}{5 b^2}-\frac {3 a (a+b x)^{2/3}}{2 b^2} \]
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Rule 45
Rubi steps \begin{align*} \text {integral}& = \int \left (-\frac {a}{b \sqrt [3]{a+b x}}+\frac {(a+b x)^{2/3}}{b}\right ) \, dx \\ & = -\frac {3 a (a+b x)^{2/3}}{2 b^2}+\frac {3 (a+b x)^{5/3}}{5 b^2} \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.71 \[ \int \frac {x}{\sqrt [3]{a+b x}} \, dx=\frac {3 (a+b x)^{2/3} (-3 a+2 b x)}{10 b^2} \]
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Time = 0.06 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.62
method | result | size |
gosper | \(-\frac {3 \left (b x +a \right )^{\frac {2}{3}} \left (-2 b x +3 a \right )}{10 b^{2}}\) | \(21\) |
trager | \(-\frac {3 \left (b x +a \right )^{\frac {2}{3}} \left (-2 b x +3 a \right )}{10 b^{2}}\) | \(21\) |
risch | \(-\frac {3 \left (b x +a \right )^{\frac {2}{3}} \left (-2 b x +3 a \right )}{10 b^{2}}\) | \(21\) |
pseudoelliptic | \(-\frac {3 \left (b x +a \right )^{\frac {2}{3}} \left (-2 b x +3 a \right )}{10 b^{2}}\) | \(21\) |
derivativedivides | \(\frac {\frac {3 \left (b x +a \right )^{\frac {5}{3}}}{5}-\frac {3 a \left (b x +a \right )^{\frac {2}{3}}}{2}}{b^{2}}\) | \(26\) |
default | \(\frac {\frac {3 \left (b x +a \right )^{\frac {5}{3}}}{5}-\frac {3 a \left (b x +a \right )^{\frac {2}{3}}}{2}}{b^{2}}\) | \(26\) |
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none
Time = 0.23 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.59 \[ \int \frac {x}{\sqrt [3]{a+b x}} \, dx=\frac {3 \, {\left (2 \, b x - 3 \, a\right )} {\left (b x + a\right )}^{\frac {2}{3}}}{10 \, b^{2}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 162 vs. \(2 (31) = 62\).
Time = 0.76 (sec) , antiderivative size = 162, normalized size of antiderivative = 4.76 \[ \int \frac {x}{\sqrt [3]{a+b x}} \, dx=- \frac {9 a^{\frac {11}{3}} \left (1 + \frac {b x}{a}\right )^{\frac {2}{3}}}{10 a^{2} b^{2} + 10 a b^{3} x} + \frac {9 a^{\frac {11}{3}}}{10 a^{2} b^{2} + 10 a b^{3} x} - \frac {3 a^{\frac {8}{3}} b x \left (1 + \frac {b x}{a}\right )^{\frac {2}{3}}}{10 a^{2} b^{2} + 10 a b^{3} x} + \frac {9 a^{\frac {8}{3}} b x}{10 a^{2} b^{2} + 10 a b^{3} x} + \frac {6 a^{\frac {5}{3}} b^{2} x^{2} \left (1 + \frac {b x}{a}\right )^{\frac {2}{3}}}{10 a^{2} b^{2} + 10 a b^{3} x} \]
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Time = 0.21 (sec) , antiderivative size = 26, normalized size of antiderivative = 0.76 \[ \int \frac {x}{\sqrt [3]{a+b x}} \, dx=\frac {3 \, {\left (b x + a\right )}^{\frac {5}{3}}}{5 \, b^{2}} - \frac {3 \, {\left (b x + a\right )}^{\frac {2}{3}} a}{2 \, b^{2}} \]
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Time = 0.31 (sec) , antiderivative size = 25, normalized size of antiderivative = 0.74 \[ \int \frac {x}{\sqrt [3]{a+b x}} \, dx=\frac {3 \, {\left (2 \, {\left (b x + a\right )}^{\frac {5}{3}} - 5 \, {\left (b x + a\right )}^{\frac {2}{3}} a\right )}}{10 \, b^{2}} \]
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Time = 0.05 (sec) , antiderivative size = 25, normalized size of antiderivative = 0.74 \[ \int \frac {x}{\sqrt [3]{a+b x}} \, dx=-\frac {15\,a\,{\left (a+b\,x\right )}^{2/3}-6\,{\left (a+b\,x\right )}^{5/3}}{10\,b^2} \]
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