Integrand size = 13, antiderivative size = 27 \[ \int x^7 \sqrt [3]{1+x^4} \, dx=-\frac {3}{16} \left (1+x^4\right )^{4/3}+\frac {3}{28} \left (1+x^4\right )^{7/3} \]
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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} \[ \int x^7 \sqrt [3]{1+x^4} \, dx=\frac {3}{28} \left (x^4+1\right )^{7/3}-\frac {3}{16} \left (x^4+1\right )^{4/3} \]
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Rule 45
Rule 272
Rubi steps \begin{align*} \text {integral}& = \frac {1}{4} \text {Subst}\left (\int x \sqrt [3]{1+x} \, dx,x,x^4\right ) \\ & = \frac {1}{4} \text {Subst}\left (\int \left (-\sqrt [3]{1+x}+(1+x)^{4/3}\right ) \, dx,x,x^4\right ) \\ & = -\frac {3}{16} \left (1+x^4\right )^{4/3}+\frac {3}{28} \left (1+x^4\right )^{7/3} \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.74 \[ \int x^7 \sqrt [3]{1+x^4} \, dx=\frac {3}{112} \left (1+x^4\right )^{4/3} \left (-3+4 x^4\right ) \]
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Time = 4.16 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.63
method | result | size |
gosper | \(\frac {3 \left (x^{4}+1\right )^{\frac {4}{3}} \left (4 x^{4}-3\right )}{112}\) | \(17\) |
meijerg | \(\frac {x^{8} {}_{2}^{}{\moversetsp {}{\mundersetsp {}{F_{1}^{}}}}\left (-\frac {1}{3},2;3;-x^{4}\right )}{8}\) | \(17\) |
pseudoelliptic | \(\frac {3 \left (x^{4}+1\right )^{\frac {4}{3}} \left (4 x^{4}-3\right )}{112}\) | \(17\) |
risch | \(\frac {3 \left (x^{4}+1\right )^{\frac {1}{3}} \left (4 x^{8}+x^{4}-3\right )}{112}\) | \(20\) |
trager | \(\left (\frac {3}{28} x^{8}+\frac {3}{112} x^{4}-\frac {9}{112}\right ) \left (x^{4}+1\right )^{\frac {1}{3}}\) | \(21\) |
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none
Time = 0.26 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.70 \[ \int x^7 \sqrt [3]{1+x^4} \, dx=\frac {3}{112} \, {\left (4 \, x^{8} + x^{4} - 3\right )} {\left (x^{4} + 1\right )}^{\frac {1}{3}} \]
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Time = 0.14 (sec) , antiderivative size = 41, normalized size of antiderivative = 1.52 \[ \int x^7 \sqrt [3]{1+x^4} \, dx=\frac {3 x^{8} \sqrt [3]{x^{4} + 1}}{28} + \frac {3 x^{4} \sqrt [3]{x^{4} + 1}}{112} - \frac {9 \sqrt [3]{x^{4} + 1}}{112} \]
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none
Time = 0.20 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.70 \[ \int x^7 \sqrt [3]{1+x^4} \, dx=\frac {3}{28} \, {\left (x^{4} + 1\right )}^{\frac {7}{3}} - \frac {3}{16} \, {\left (x^{4} + 1\right )}^{\frac {4}{3}} \]
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Time = 0.31 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.70 \[ \int x^7 \sqrt [3]{1+x^4} \, dx=\frac {3}{28} \, {\left (x^{4} + 1\right )}^{\frac {7}{3}} - \frac {3}{16} \, {\left (x^{4} + 1\right )}^{\frac {4}{3}} \]
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Time = 5.49 (sec) , antiderivative size = 16, normalized size of antiderivative = 0.59 \[ \int x^7 \sqrt [3]{1+x^4} \, dx=\frac {3\,{\left (x^4+1\right )}^{4/3}\,\left (4\,x^4-3\right )}{112} \]
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