Integrand size = 18, antiderivative size = 23 \[ \int \frac {-1+x^4}{x^6 \left (1+x^4\right )^{3/4}} \, dx=\frac {\left (1-9 x^4\right ) \sqrt [4]{1+x^4}}{5 x^5} \]
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Time = 0.01 (sec) , antiderivative size = 33, normalized size of antiderivative = 1.43, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.111, Rules used = {464, 270} \[ \int \frac {-1+x^4}{x^6 \left (1+x^4\right )^{3/4}} \, dx=\frac {\sqrt [4]{x^4+1}}{5 x^5}-\frac {9 \sqrt [4]{x^4+1}}{5 x} \]
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Rule 270
Rule 464
Rubi steps \begin{align*} \text {integral}& = \frac {\sqrt [4]{1+x^4}}{5 x^5}+\frac {9}{5} \int \frac {1}{x^2 \left (1+x^4\right )^{3/4}} \, dx \\ & = \frac {\sqrt [4]{1+x^4}}{5 x^5}-\frac {9 \sqrt [4]{1+x^4}}{5 x} \\ \end{align*}
Time = 0.20 (sec) , antiderivative size = 23, normalized size of antiderivative = 1.00 \[ \int \frac {-1+x^4}{x^6 \left (1+x^4\right )^{3/4}} \, dx=\frac {\left (1-9 x^4\right ) \sqrt [4]{1+x^4}}{5 x^5} \]
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Time = 0.84 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.87
method | result | size |
gosper | \(-\frac {\left (9 x^{4}-1\right ) \left (x^{4}+1\right )^{\frac {1}{4}}}{5 x^{5}}\) | \(20\) |
trager | \(-\frac {\left (9 x^{4}-1\right ) \left (x^{4}+1\right )^{\frac {1}{4}}}{5 x^{5}}\) | \(20\) |
pseudoelliptic | \(-\frac {\left (9 x^{4}-1\right ) \left (x^{4}+1\right )^{\frac {1}{4}}}{5 x^{5}}\) | \(20\) |
risch | \(-\frac {9 x^{8}+8 x^{4}-1}{5 \left (x^{4}+1\right )^{\frac {3}{4}} x^{5}}\) | \(25\) |
meijerg | \(-\frac {\left (x^{4}+1\right )^{\frac {1}{4}}}{x}+\frac {\left (-4 x^{4}+1\right ) \left (x^{4}+1\right )^{\frac {1}{4}}}{5 x^{5}}\) | \(33\) |
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Time = 0.25 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.83 \[ \int \frac {-1+x^4}{x^6 \left (1+x^4\right )^{3/4}} \, dx=-\frac {{\left (9 \, x^{4} - 1\right )} {\left (x^{4} + 1\right )}^{\frac {1}{4}}}{5 \, x^{5}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 71 vs. \(2 (20) = 40\).
Time = 0.88 (sec) , antiderivative size = 71, normalized size of antiderivative = 3.09 \[ \int \frac {-1+x^4}{x^6 \left (1+x^4\right )^{3/4}} \, dx=\frac {\sqrt [4]{1 + \frac {1}{x^{4}}} \Gamma \left (- \frac {1}{4}\right )}{4 \Gamma \left (\frac {3}{4}\right )} - \frac {\sqrt [4]{x^{4} + 1} \Gamma \left (- \frac {5}{4}\right )}{4 x \Gamma \left (\frac {3}{4}\right )} + \frac {\sqrt [4]{x^{4} + 1} \Gamma \left (- \frac {5}{4}\right )}{16 x^{5} \Gamma \left (\frac {3}{4}\right )} \]
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Time = 0.20 (sec) , antiderivative size = 25, normalized size of antiderivative = 1.09 \[ \int \frac {-1+x^4}{x^6 \left (1+x^4\right )^{3/4}} \, dx=-\frac {2 \, {\left (x^{4} + 1\right )}^{\frac {1}{4}}}{x} + \frac {{\left (x^{4} + 1\right )}^{\frac {5}{4}}}{5 \, x^{5}} \]
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\[ \int \frac {-1+x^4}{x^6 \left (1+x^4\right )^{3/4}} \, dx=\int { \frac {x^{4} - 1}{{\left (x^{4} + 1\right )}^{\frac {3}{4}} x^{6}} \,d x } \]
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Time = 5.33 (sec) , antiderivative size = 25, normalized size of antiderivative = 1.09 \[ \int \frac {-1+x^4}{x^6 \left (1+x^4\right )^{3/4}} \, dx=\frac {{\left (x^4+1\right )}^{1/4}-9\,x^4\,{\left (x^4+1\right )}^{1/4}}{5\,x^5} \]
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