Integrand size = 16, antiderivative size = 45 \[ \int \frac {1}{\sqrt {3+7 x^2-2 x^4}} \, dx=\sqrt {\frac {2}{-7+\sqrt {73}}} \operatorname {EllipticF}\left (\arcsin \left (\frac {2 x}{\sqrt {7+\sqrt {73}}}\right ),\frac {1}{12} \left (-61-7 \sqrt {73}\right )\right ) \]
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Time = 0.04 (sec) , antiderivative size = 45, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.125, Rules used = {1109, 430} \[ \int \frac {1}{\sqrt {3+7 x^2-2 x^4}} \, dx=\sqrt {\frac {2}{\sqrt {73}-7}} \operatorname {EllipticF}\left (\arcsin \left (\frac {2 x}{\sqrt {7+\sqrt {73}}}\right ),\frac {1}{12} \left (-61-7 \sqrt {73}\right )\right ) \]
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Rule 430
Rule 1109
Rubi steps \begin{align*} \text {integral}& = \left (2 \sqrt {2}\right ) \int \frac {1}{\sqrt {7+\sqrt {73}-4 x^2} \sqrt {-7+\sqrt {73}+4 x^2}} \, dx \\ & = \sqrt {\frac {2}{-7+\sqrt {73}}} F\left (\sin ^{-1}\left (\frac {2 x}{\sqrt {7+\sqrt {73}}}\right )|\frac {1}{12} \left (-61-7 \sqrt {73}\right )\right ) \\ \end{align*}
Result contains complex when optimal does not.
Time = 10.05 (sec) , antiderivative size = 52, normalized size of antiderivative = 1.16 \[ \int \frac {1}{\sqrt {3+7 x^2-2 x^4}} \, dx=-i \sqrt {\frac {2}{7+\sqrt {73}}} \operatorname {EllipticF}\left (i \text {arcsinh}\left (\frac {2 x}{\sqrt {-7+\sqrt {73}}}\right ),\frac {1}{12} \left (-61+7 \sqrt {73}\right )\right ) \]
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Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 83 vs. \(2 (35 ) = 70\).
Time = 0.38 (sec) , antiderivative size = 84, normalized size of antiderivative = 1.87
method | result | size |
default | \(\frac {6 \sqrt {1-\left (-\frac {7}{6}+\frac {\sqrt {73}}{6}\right ) x^{2}}\, \sqrt {1-\left (-\frac {7}{6}-\frac {\sqrt {73}}{6}\right ) x^{2}}\, F\left (\frac {x \sqrt {-42+6 \sqrt {73}}}{6}, \frac {7 i \sqrt {6}}{12}+\frac {i \sqrt {438}}{12}\right )}{\sqrt {-42+6 \sqrt {73}}\, \sqrt {-2 x^{4}+7 x^{2}+3}}\) | \(84\) |
elliptic | \(\frac {6 \sqrt {1-\left (-\frac {7}{6}+\frac {\sqrt {73}}{6}\right ) x^{2}}\, \sqrt {1-\left (-\frac {7}{6}-\frac {\sqrt {73}}{6}\right ) x^{2}}\, F\left (\frac {x \sqrt {-42+6 \sqrt {73}}}{6}, \frac {7 i \sqrt {6}}{12}+\frac {i \sqrt {438}}{12}\right )}{\sqrt {-42+6 \sqrt {73}}\, \sqrt {-2 x^{4}+7 x^{2}+3}}\) | \(84\) |
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none
Time = 0.07 (sec) , antiderivative size = 50, normalized size of antiderivative = 1.11 \[ \int \frac {1}{\sqrt {3+7 x^2-2 x^4}} \, dx=\frac {1}{72} \, {\left (\sqrt {73} \sqrt {6} \sqrt {3} + 7 \, \sqrt {6} \sqrt {3}\right )} \sqrt {\sqrt {73} - 7} F(\arcsin \left (\frac {1}{6} \, \sqrt {6} x \sqrt {\sqrt {73} - 7}\right )\,|\,-\frac {7}{12} \, \sqrt {73} - \frac {61}{12}) \]
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\[ \int \frac {1}{\sqrt {3+7 x^2-2 x^4}} \, dx=\int \frac {1}{\sqrt {- 2 x^{4} + 7 x^{2} + 3}}\, dx \]
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\[ \int \frac {1}{\sqrt {3+7 x^2-2 x^4}} \, dx=\int { \frac {1}{\sqrt {-2 \, x^{4} + 7 \, x^{2} + 3}} \,d x } \]
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\[ \int \frac {1}{\sqrt {3+7 x^2-2 x^4}} \, dx=\int { \frac {1}{\sqrt {-2 \, x^{4} + 7 \, x^{2} + 3}} \,d x } \]
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Timed out. \[ \int \frac {1}{\sqrt {3+7 x^2-2 x^4}} \, dx=\int \frac {1}{\sqrt {-2\,x^4+7\,x^2+3}} \,d x \]
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