Integrand size = 13, antiderivative size = 27 \[ \int x^3 \left (1+x^2\right )^{9/14} \, dx=-\frac {7}{23} \left (1+x^2\right )^{23/14}+\frac {7}{37} \left (1+x^2\right )^{37/14} \]
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Time = 0.01 (sec) , antiderivative size = 27, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.154, Rules used = {272, 45} \[ \int x^3 \left (1+x^2\right )^{9/14} \, dx=\frac {7}{37} \left (x^2+1\right )^{37/14}-\frac {7}{23} \left (x^2+1\right )^{23/14} \]
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Rule 45
Rule 272
Rubi steps \begin{align*} \text {integral}& = \frac {1}{2} \text {Subst}\left (\int x (1+x)^{9/14} \, dx,x,x^2\right ) \\ & = \frac {1}{2} \text {Subst}\left (\int \left (-(1+x)^{9/14}+(1+x)^{23/14}\right ) \, dx,x,x^2\right ) \\ & = -\frac {7}{23} \left (1+x^2\right )^{23/14}+\frac {7}{37} \left (1+x^2\right )^{37/14} \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 25, normalized size of antiderivative = 0.93 \[ \int x^3 \left (1+x^2\right )^{9/14} \, dx=\frac {7}{851} \left (1+x^2\right )^{9/14} \left (-14+9 x^2+23 x^4\right ) \]
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Time = 0.30 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.63
method | result | size |
gosper | \(\frac {7 \left (x^{2}+1\right )^{\frac {23}{14}} \left (23 x^{2}-14\right )}{851}\) | \(17\) |
meijerg | \(\frac {x^{4} {}_{2}^{}{\moversetsp {}{\mundersetsp {}{F_{1}^{}}}}\left (-\frac {9}{14},2;3;-x^{2}\right )}{4}\) | \(17\) |
pseudoelliptic | \(\frac {7 \left (x^{2}+1\right )^{\frac {23}{14}} \left (23 x^{2}-14\right )}{851}\) | \(17\) |
trager | \(\left (\frac {7}{37} x^{4}+\frac {63}{851} x^{2}-\frac {98}{851}\right ) \left (x^{2}+1\right )^{\frac {9}{14}}\) | \(21\) |
risch | \(\frac {7 \left (x^{2}+1\right )^{\frac {9}{14}} \left (23 x^{4}+9 x^{2}-14\right )}{851}\) | \(22\) |
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Time = 0.24 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.78 \[ \int x^3 \left (1+x^2\right )^{9/14} \, dx=\frac {7}{851} \, {\left (23 \, x^{4} + 9 \, x^{2} - 14\right )} {\left (x^{2} + 1\right )}^{\frac {9}{14}} \]
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Time = 2.71 (sec) , antiderivative size = 41, normalized size of antiderivative = 1.52 \[ \int x^3 \left (1+x^2\right )^{9/14} \, dx=\frac {7 x^{4} \left (x^{2} + 1\right )^{\frac {9}{14}}}{37} + \frac {63 x^{2} \left (x^{2} + 1\right )^{\frac {9}{14}}}{851} - \frac {98 \left (x^{2} + 1\right )^{\frac {9}{14}}}{851} \]
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Time = 0.20 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.70 \[ \int x^3 \left (1+x^2\right )^{9/14} \, dx=\frac {7}{37} \, {\left (x^{2} + 1\right )}^{\frac {37}{14}} - \frac {7}{23} \, {\left (x^{2} + 1\right )}^{\frac {23}{14}} \]
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Time = 0.26 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.70 \[ \int x^3 \left (1+x^2\right )^{9/14} \, dx=\frac {7}{37} \, {\left (x^{2} + 1\right )}^{\frac {37}{14}} - \frac {7}{23} \, {\left (x^{2} + 1\right )}^{\frac {23}{14}} \]
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Time = 0.44 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.74 \[ \int x^3 \left (1+x^2\right )^{9/14} \, dx={\left (x^2+1\right )}^{9/14}\,\left (\frac {7\,x^4}{37}+\frac {63\,x^2}{851}-\frac {98}{851}\right ) \]
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