Integrand size = 11, antiderivative size = 29 \[ \int \sqrt {3-x^2} \, dx=\frac {1}{2} x \sqrt {3-x^2}+\frac {3}{2} \arcsin \left (\frac {x}{\sqrt {3}}\right ) \]
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Time = 0.00 (sec) , antiderivative size = 29, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.182, Rules used = {201, 222} \[ \int \sqrt {3-x^2} \, dx=\frac {3}{2} \arcsin \left (\frac {x}{\sqrt {3}}\right )+\frac {1}{2} \sqrt {3-x^2} x \]
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Rule 201
Rule 222
Rubi steps \begin{align*} \text {integral}& = \frac {1}{2} x \sqrt {3-x^2}+\frac {3}{2} \int \frac {1}{\sqrt {3-x^2}} \, dx \\ & = \frac {1}{2} x \sqrt {3-x^2}+\frac {3}{2} \arcsin \left (\frac {x}{\sqrt {3}}\right ) \\ \end{align*}
Time = 0.05 (sec) , antiderivative size = 41, normalized size of antiderivative = 1.41 \[ \int \sqrt {3-x^2} \, dx=\frac {1}{2} x \sqrt {3-x^2}+3 \arctan \left (\frac {-\sqrt {3}+x}{\sqrt {3-x^2}}\right ) \]
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Time = 0.34 (sec) , antiderivative size = 23, normalized size of antiderivative = 0.79
method | result | size |
default | \(\frac {3 \arcsin \left (\frac {x \sqrt {3}}{3}\right )}{2}+\frac {x \sqrt {-x^{2}+3}}{2}\) | \(23\) |
risch | \(-\frac {x \left (x^{2}-3\right )}{2 \sqrt {-x^{2}+3}}+\frac {3 \arcsin \left (\frac {x \sqrt {3}}{3}\right )}{2}\) | \(28\) |
pseudoelliptic | \(\frac {x \sqrt {-x^{2}+3}}{2}-\frac {3 \arctan \left (\frac {\sqrt {-x^{2}+3}}{x}\right )}{2}\) | \(30\) |
meijerg | \(\frac {3 i \left (-\frac {2 i \sqrt {\pi }\, x \sqrt {3}\, \sqrt {-\frac {x^{2}}{3}+1}}{3}-2 i \sqrt {\pi }\, \arcsin \left (\frac {x \sqrt {3}}{3}\right )\right )}{4 \sqrt {\pi }}\) | \(40\) |
trager | \(\frac {x \sqrt {-x^{2}+3}}{2}+\frac {3 \operatorname {RootOf}\left (\textit {\_Z}^{2}+1\right ) \ln \left (\operatorname {RootOf}\left (\textit {\_Z}^{2}+1\right ) \sqrt {-x^{2}+3}+x \right )}{2}\) | \(41\) |
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Time = 0.24 (sec) , antiderivative size = 29, normalized size of antiderivative = 1.00 \[ \int \sqrt {3-x^2} \, dx=\frac {1}{2} \, \sqrt {-x^{2} + 3} x - \frac {3}{2} \, \arctan \left (\frac {\sqrt {-x^{2} + 3}}{x}\right ) \]
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Time = 0.09 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.83 \[ \int \sqrt {3-x^2} \, dx=\frac {x \sqrt {3 - x^{2}}}{2} + \frac {3 \operatorname {asin}{\left (\frac {\sqrt {3} x}{3} \right )}}{2} \]
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Time = 0.28 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.76 \[ \int \sqrt {3-x^2} \, dx=\frac {1}{2} \, \sqrt {-x^{2} + 3} x + \frac {3}{2} \, \arcsin \left (\frac {1}{3} \, \sqrt {3} x\right ) \]
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Time = 0.28 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.76 \[ \int \sqrt {3-x^2} \, dx=\frac {1}{2} \, \sqrt {-x^{2} + 3} x + \frac {3}{2} \, \arcsin \left (\frac {1}{3} \, \sqrt {3} x\right ) \]
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Time = 0.04 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.76 \[ \int \sqrt {3-x^2} \, dx=\frac {3\,\mathrm {asin}\left (\frac {\sqrt {3}\,x}{3}\right )}{2}+\frac {x\,\sqrt {3-x^2}}{2} \]
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