Integrand size = 15, antiderivative size = 28 \[ \int \frac {\sqrt [4]{-x+x^4}}{x^8} \, dx=\frac {4 \sqrt [4]{-x+x^4} \left (-5+x^3+4 x^6\right )}{135 x^7} \]
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Time = 0.03 (sec) , antiderivative size = 37, normalized size of antiderivative = 1.32, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.133, Rules used = {2041, 2039} \[ \int \frac {\sqrt [4]{-x+x^4}}{x^8} \, dx=\frac {4 \left (x^4-x\right )^{5/4}}{27 x^8}+\frac {16 \left (x^4-x\right )^{5/4}}{135 x^5} \]
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Rule 2039
Rule 2041
Rubi steps \begin{align*} \text {integral}& = \frac {4 \left (-x+x^4\right )^{5/4}}{27 x^8}+\frac {4}{9} \int \frac {\sqrt [4]{-x+x^4}}{x^5} \, dx \\ & = \frac {4 \left (-x+x^4\right )^{5/4}}{27 x^8}+\frac {16 \left (-x+x^4\right )^{5/4}}{135 x^5} \\ \end{align*}
Time = 10.02 (sec) , antiderivative size = 25, normalized size of antiderivative = 0.89 \[ \int \frac {\sqrt [4]{-x+x^4}}{x^8} \, dx=\frac {4 \left (x \left (-1+x^3\right )\right )^{5/4} \left (5+4 x^3\right )}{135 x^8} \]
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Time = 0.84 (sec) , antiderivative size = 25, normalized size of antiderivative = 0.89
method | result | size |
trager | \(\frac {4 \left (x^{4}-x \right )^{\frac {1}{4}} \left (4 x^{6}+x^{3}-5\right )}{135 x^{7}}\) | \(25\) |
pseudoelliptic | \(\frac {4 \left (x^{4}-x \right )^{\frac {1}{4}} \left (4 x^{6}+x^{3}-5\right )}{135 x^{7}}\) | \(25\) |
gosper | \(\frac {4 \left (x -1\right ) \left (x^{2}+x +1\right ) \left (4 x^{3}+5\right ) \left (x^{4}-x \right )^{\frac {1}{4}}}{135 x^{7}}\) | \(31\) |
risch | \(\frac {4 {\left (x \left (x^{3}-1\right )\right )}^{\frac {1}{4}} \left (4 x^{9}-3 x^{6}-6 x^{3}+5\right )}{135 x^{7} \left (x^{3}-1\right )}\) | \(39\) |
meijerg | \(-\frac {4 \operatorname {signum}\left (x^{3}-1\right )^{\frac {1}{4}} \left (-\frac {4}{5} x^{6}-\frac {1}{5} x^{3}+1\right ) \left (-x^{3}+1\right )^{\frac {1}{4}}}{27 {\left (-\operatorname {signum}\left (x^{3}-1\right )\right )}^{\frac {1}{4}} x^{\frac {27}{4}}}\) | \(45\) |
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Time = 0.24 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.86 \[ \int \frac {\sqrt [4]{-x+x^4}}{x^8} \, dx=\frac {4 \, {\left (4 \, x^{6} + x^{3} - 5\right )} {\left (x^{4} - x\right )}^{\frac {1}{4}}}{135 \, x^{7}} \]
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\[ \int \frac {\sqrt [4]{-x+x^4}}{x^8} \, dx=\int \frac {\sqrt [4]{x \left (x - 1\right ) \left (x^{2} + x + 1\right )}}{x^{8}}\, dx \]
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none
Time = 0.26 (sec) , antiderivative size = 30, normalized size of antiderivative = 1.07 \[ \int \frac {\sqrt [4]{-x+x^4}}{x^8} \, dx=\frac {4 \, {\left (4 \, x^{7} + x^{4} - 5 \, x\right )} {\left (x^{2} + x + 1\right )}^{\frac {1}{4}} {\left (x - 1\right )}^{\frac {1}{4}}}{135 \, x^{\frac {31}{4}}} \]
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Time = 0.27 (sec) , antiderivative size = 30, normalized size of antiderivative = 1.07 \[ \int \frac {\sqrt [4]{-x+x^4}}{x^8} \, dx=-\frac {4}{27} \, {\left (\frac {1}{x^{3}} - 1\right )}^{2} {\left (-\frac {1}{x^{3}} + 1\right )}^{\frac {1}{4}} + \frac {4}{15} \, {\left (-\frac {1}{x^{3}} + 1\right )}^{\frac {5}{4}} \]
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Time = 5.24 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.86 \[ \int \frac {\sqrt [4]{-x+x^4}}{x^8} \, dx=\frac {4\,{\left (x^4-x\right )}^{1/4}\,\left (4\,x^6+x^3-5\right )}{135\,x^7} \]
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