Integrand size = 23, antiderivative size = 23 \[ \int \frac {x^2}{\sqrt {1+x} \sqrt {1-x+x^2}} \, dx=\frac {2}{3} \sqrt {1+x} \sqrt {1-x+x^2} \]
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Time = 0.01 (sec) , antiderivative size = 23, normalized size of antiderivative = 1.00, number of steps used = 1, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.043, Rules used = {927} \[ \int \frac {x^2}{\sqrt {1+x} \sqrt {1-x+x^2}} \, dx=\frac {2}{3} \sqrt {x+1} \sqrt {x^2-x+1} \]
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Rule 927
Rubi steps \begin{align*} \text {integral}& = \frac {2}{3} \sqrt {1+x} \sqrt {1-x+x^2} \\ \end{align*}
Time = 10.02 (sec) , antiderivative size = 23, normalized size of antiderivative = 1.00 \[ \int \frac {x^2}{\sqrt {1+x} \sqrt {1-x+x^2}} \, dx=\frac {2}{3} \sqrt {1+x} \sqrt {1-x+x^2} \]
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Time = 0.62 (sec) , antiderivative size = 18, normalized size of antiderivative = 0.78
method | result | size |
gosper | \(\frac {2 \sqrt {1+x}\, \sqrt {x^{2}-x +1}}{3}\) | \(18\) |
default | \(\frac {2 \sqrt {1+x}\, \sqrt {x^{2}-x +1}}{3}\) | \(18\) |
risch | \(\frac {2 \sqrt {1+x}\, \sqrt {x^{2}-x +1}}{3}\) | \(18\) |
elliptic | \(\frac {2 \sqrt {\left (1+x \right ) \left (x^{2}-x +1\right )}\, \sqrt {x^{3}+1}}{3 \sqrt {1+x}\, \sqrt {x^{2}-x +1}}\) | \(39\) |
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none
Time = 0.27 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.74 \[ \int \frac {x^2}{\sqrt {1+x} \sqrt {1-x+x^2}} \, dx=\frac {2}{3} \, \sqrt {x^{2} - x + 1} \sqrt {x + 1} \]
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\[ \int \frac {x^2}{\sqrt {1+x} \sqrt {1-x+x^2}} \, dx=\int \frac {x^{2}}{\sqrt {x + 1} \sqrt {x^{2} - x + 1}}\, dx \]
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none
Time = 0.30 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.96 \[ \int \frac {x^2}{\sqrt {1+x} \sqrt {1-x+x^2}} \, dx=\frac {2 \, {\left (x^{3} + 1\right )}}{3 \, \sqrt {x^{2} - x + 1} \sqrt {x + 1}} \]
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none
Time = 0.30 (sec) , antiderivative size = 18, normalized size of antiderivative = 0.78 \[ \int \frac {x^2}{\sqrt {1+x} \sqrt {1-x+x^2}} \, dx=\frac {2}{3} \, \sqrt {{\left (x + 1\right )}^{2} - 3 \, x} \sqrt {x + 1} \]
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Time = 0.15 (sec) , antiderivative size = 9, normalized size of antiderivative = 0.39 \[ \int \frac {x^2}{\sqrt {1+x} \sqrt {1-x+x^2}} \, dx=\frac {2\,\sqrt {x^3+1}}{3} \]
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