Integrand size = 19, antiderivative size = 23 \[ \int \frac {1}{\left (1+x^2\right ) \sqrt [4]{x^2+x^4}} \, dx=\frac {2 \left (x^2+x^4\right )^{3/4}}{x \left (1+x^2\right )} \]
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Time = 0.01 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.61, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.105, Rules used = {1160, 270} \[ \int \frac {1}{\left (1+x^2\right ) \sqrt [4]{x^2+x^4}} \, dx=\frac {2 x}{\sqrt [4]{x^4+x^2}} \]
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Rule 270
Rule 1160
Rubi steps \begin{align*} \text {integral}& = \frac {\left (\sqrt {x} \sqrt [4]{1+x^2}\right ) \int \frac {1}{\sqrt {x} \left (1+x^2\right )^{5/4}} \, dx}{\sqrt [4]{x^2+x^4}} \\ & = \frac {2 x}{\sqrt [4]{x^2+x^4}} \\ \end{align*}
Time = 0.16 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.61 \[ \int \frac {1}{\left (1+x^2\right ) \sqrt [4]{x^2+x^4}} \, dx=\frac {2 x}{\sqrt [4]{x^2+x^4}} \]
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Time = 0.96 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.57
method | result | size |
gosper | \(\frac {2 x}{\left (x^{4}+x^{2}\right )^{\frac {1}{4}}}\) | \(13\) |
meijerg | \(\frac {2 \sqrt {x}}{\left (x^{2}+1\right )^{\frac {1}{4}}}\) | \(13\) |
risch | \(\frac {2 x}{\left (x^{2} \left (x^{2}+1\right )\right )^{\frac {1}{4}}}\) | \(15\) |
pseudoelliptic | \(\frac {2 x}{\left (x^{2} \left (x^{2}+1\right )\right )^{\frac {1}{4}}}\) | \(15\) |
trager | \(\frac {2 \left (x^{4}+x^{2}\right )^{\frac {3}{4}}}{x \left (x^{2}+1\right )}\) | \(22\) |
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none
Time = 0.24 (sec) , antiderivative size = 18, normalized size of antiderivative = 0.78 \[ \int \frac {1}{\left (1+x^2\right ) \sqrt [4]{x^2+x^4}} \, dx=\frac {2 \, {\left (x^{4} + x^{2}\right )}^{\frac {3}{4}}}{x^{3} + x} \]
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\[ \int \frac {1}{\left (1+x^2\right ) \sqrt [4]{x^2+x^4}} \, dx=\int \frac {1}{\sqrt [4]{x^{2} \left (x^{2} + 1\right )} \left (x^{2} + 1\right )}\, dx \]
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\[ \int \frac {1}{\left (1+x^2\right ) \sqrt [4]{x^2+x^4}} \, dx=\int { \frac {1}{{\left (x^{4} + x^{2}\right )}^{\frac {1}{4}} {\left (x^{2} + 1\right )}} \,d x } \]
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none
Time = 0.27 (sec) , antiderivative size = 9, normalized size of antiderivative = 0.39 \[ \int \frac {1}{\left (1+x^2\right ) \sqrt [4]{x^2+x^4}} \, dx=\frac {2}{{\left (\frac {1}{x^{2}} + 1\right )}^{\frac {1}{4}}} \]
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Time = 5.44 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.91 \[ \int \frac {1}{\left (1+x^2\right ) \sqrt [4]{x^2+x^4}} \, dx=\frac {2\,{\left (x^4+x^2\right )}^{3/4}}{x\,\left (x^2+1\right )} \]
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