Integrand size = 15, antiderivative size = 44 \[ \int \frac {\left (a+b x^3\right )^{2/3}}{x^9} \, dx=-\frac {\left (a+b x^3\right )^{5/3}}{8 a x^8}+\frac {3 b \left (a+b x^3\right )^{5/3}}{40 a^2 x^5} \]
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Time = 0.01 (sec) , antiderivative size = 44, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.133, Rules used = {277, 270} \[ \int \frac {\left (a+b x^3\right )^{2/3}}{x^9} \, dx=\frac {3 b \left (a+b x^3\right )^{5/3}}{40 a^2 x^5}-\frac {\left (a+b x^3\right )^{5/3}}{8 a x^8} \]
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Rule 270
Rule 277
Rubi steps \begin{align*} \text {integral}& = -\frac {\left (a+b x^3\right )^{5/3}}{8 a x^8}-\frac {(3 b) \int \frac {\left (a+b x^3\right )^{2/3}}{x^6} \, dx}{8 a} \\ & = -\frac {\left (a+b x^3\right )^{5/3}}{8 a x^8}+\frac {3 b \left (a+b x^3\right )^{5/3}}{40 a^2 x^5} \\ \end{align*}
Time = 0.12 (sec) , antiderivative size = 42, normalized size of antiderivative = 0.95 \[ \int \frac {\left (a+b x^3\right )^{2/3}}{x^9} \, dx=\frac {\left (a+b x^3\right )^{2/3} \left (-5 a^2-2 a b x^3+3 b^2 x^6\right )}{40 a^2 x^8} \]
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Time = 4.01 (sec) , antiderivative size = 28, normalized size of antiderivative = 0.64
method | result | size |
gosper | \(-\frac {\left (b \,x^{3}+a \right )^{\frac {5}{3}} \left (-3 b \,x^{3}+5 a \right )}{40 x^{8} a^{2}}\) | \(28\) |
pseudoelliptic | \(-\frac {\left (b \,x^{3}+a \right )^{\frac {5}{3}} \left (-3 b \,x^{3}+5 a \right )}{40 x^{8} a^{2}}\) | \(28\) |
trager | \(-\frac {\left (-3 b^{2} x^{6}+2 a b \,x^{3}+5 a^{2}\right ) \left (b \,x^{3}+a \right )^{\frac {2}{3}}}{40 x^{8} a^{2}}\) | \(39\) |
risch | \(-\frac {\left (-3 b^{2} x^{6}+2 a b \,x^{3}+5 a^{2}\right ) \left (b \,x^{3}+a \right )^{\frac {2}{3}}}{40 x^{8} a^{2}}\) | \(39\) |
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none
Time = 0.27 (sec) , antiderivative size = 38, normalized size of antiderivative = 0.86 \[ \int \frac {\left (a+b x^3\right )^{2/3}}{x^9} \, dx=\frac {{\left (3 \, b^{2} x^{6} - 2 \, a b x^{3} - 5 \, a^{2}\right )} {\left (b x^{3} + a\right )}^{\frac {2}{3}}}{40 \, a^{2} x^{8}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 110 vs. \(2 (37) = 74\).
Time = 0.64 (sec) , antiderivative size = 110, normalized size of antiderivative = 2.50 \[ \int \frac {\left (a+b x^3\right )^{2/3}}{x^9} \, dx=- \frac {5 b^{\frac {2}{3}} \left (\frac {a}{b x^{3}} + 1\right )^{\frac {2}{3}} \Gamma \left (- \frac {8}{3}\right )}{9 x^{6} \Gamma \left (- \frac {2}{3}\right )} - \frac {2 b^{\frac {5}{3}} \left (\frac {a}{b x^{3}} + 1\right )^{\frac {2}{3}} \Gamma \left (- \frac {8}{3}\right )}{9 a x^{3} \Gamma \left (- \frac {2}{3}\right )} + \frac {b^{\frac {8}{3}} \left (\frac {a}{b x^{3}} + 1\right )^{\frac {2}{3}} \Gamma \left (- \frac {8}{3}\right )}{3 a^{2} \Gamma \left (- \frac {2}{3}\right )} \]
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Time = 0.22 (sec) , antiderivative size = 35, normalized size of antiderivative = 0.80 \[ \int \frac {\left (a+b x^3\right )^{2/3}}{x^9} \, dx=\frac {\frac {8 \, {\left (b x^{3} + a\right )}^{\frac {5}{3}} b}{x^{5}} - \frac {5 \, {\left (b x^{3} + a\right )}^{\frac {8}{3}}}{x^{8}}}{40 \, a^{2}} \]
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\[ \int \frac {\left (a+b x^3\right )^{2/3}}{x^9} \, dx=\int { \frac {{\left (b x^{3} + a\right )}^{\frac {2}{3}}}{x^{9}} \,d x } \]
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Time = 5.96 (sec) , antiderivative size = 38, normalized size of antiderivative = 0.86 \[ \int \frac {\left (a+b x^3\right )^{2/3}}{x^9} \, dx=-\frac {{\left (b\,x^3+a\right )}^{2/3}\,\left (5\,a^2+2\,a\,b\,x^3-3\,b^2\,x^6\right )}{40\,a^2\,x^8} \]
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