Integrand size = 24, antiderivative size = 17 \[ \int \frac {75 x^2+5 x^4}{25+10 x^2+x^4} \, dx=2+\frac {x^3}{1+\frac {x^2}{5}} \]
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Time = 0.01 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.71, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.083, Rules used = {28, 1602} \[ \int \frac {75 x^2+5 x^4}{25+10 x^2+x^4} \, dx=\frac {5 x^3}{x^2+5} \]
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Rule 28
Rule 1602
Rubi steps \begin{align*} \text {integral}& = \int \frac {75 x^2+5 x^4}{\left (5+x^2\right )^2} \, dx \\ & = \frac {5 x^3}{5+x^2} \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.82 \[ \int \frac {75 x^2+5 x^4}{25+10 x^2+x^4} \, dx=5 \left (x-\frac {5 x}{5+x^2}\right ) \]
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Time = 0.02 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.76
method | result | size |
gosper | \(\frac {5 x^{3}}{x^{2}+5}\) | \(13\) |
norman | \(\frac {5 x^{3}}{x^{2}+5}\) | \(13\) |
parallelrisch | \(\frac {5 x^{3}}{x^{2}+5}\) | \(13\) |
default | \(5 x -\frac {25 x}{x^{2}+5}\) | \(15\) |
risch | \(5 x -\frac {25 x}{x^{2}+5}\) | \(15\) |
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Time = 0.22 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.71 \[ \int \frac {75 x^2+5 x^4}{25+10 x^2+x^4} \, dx=\frac {5 \, x^{3}}{x^{2} + 5} \]
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Time = 0.03 (sec) , antiderivative size = 10, normalized size of antiderivative = 0.59 \[ \int \frac {75 x^2+5 x^4}{25+10 x^2+x^4} \, dx=5 x - \frac {25 x}{x^{2} + 5} \]
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none
Time = 0.19 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.82 \[ \int \frac {75 x^2+5 x^4}{25+10 x^2+x^4} \, dx=5 \, x - \frac {25 \, x}{x^{2} + 5} \]
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none
Time = 0.28 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.82 \[ \int \frac {75 x^2+5 x^4}{25+10 x^2+x^4} \, dx=5 \, x - \frac {25 \, x}{x^{2} + 5} \]
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Time = 0.04 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.71 \[ \int \frac {75 x^2+5 x^4}{25+10 x^2+x^4} \, dx=\frac {5\,x^3}{x^2+5} \]
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