Optimal. Leaf size=16 \[ \frac {\tanh ^{-1}\left (\sqrt {\frac {3}{2}} x\right )}{\sqrt {6}} \]
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Rubi [A] time = 0.00, antiderivative size = 16, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, integrand size = 17, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.118, Rules used = {26, 206} \[ \frac {\tanh ^{-1}\left (\sqrt {\frac {3}{2}} x\right )}{\sqrt {6}} \]
Antiderivative was successfully verified.
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Rule 26
Rule 206
Rubi steps
\begin {align*} \int \frac {2+3 x^2}{4-9 x^4} \, dx &=\int \frac {1}{2-3 x^2} \, dx\\ &=\frac {\tanh ^{-1}\left (\sqrt {\frac {3}{2}} x\right )}{\sqrt {6}}\\ \end {align*}
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Mathematica [A] time = 0.01, size = 32, normalized size = 2.00 \[ \frac {\log \left (3 x+\sqrt {6}\right )-\log \left (\sqrt {6}-3 x\right )}{2 \sqrt {6}} \]
Antiderivative was successfully verified.
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fricas [B] time = 0.67, size = 29, normalized size = 1.81 \[ \frac {1}{12} \, \sqrt {6} \log \left (\frac {3 \, x^{2} + 2 \, \sqrt {6} x + 2}{3 \, x^{2} - 2}\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [B] time = 0.16, size = 29, normalized size = 1.81 \[ \frac {1}{12} \, \sqrt {6} \log \left ({\left | x + \frac {1}{3} \, \sqrt {6} \right |}\right ) - \frac {1}{12} \, \sqrt {6} \log \left ({\left | x - \frac {1}{3} \, \sqrt {6} \right |}\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.00, size = 13, normalized size = 0.81 \[ \frac {\sqrt {6}\, \arctanh \left (\frac {\sqrt {6}\, x}{2}\right )}{6} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [B] time = 2.39, size = 25, normalized size = 1.56 \[ -\frac {1}{12} \, \sqrt {6} \log \left (\frac {3 \, x - \sqrt {6}}{3 \, x + \sqrt {6}}\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 0.09, size = 12, normalized size = 0.75 \[ \frac {\sqrt {6}\,\mathrm {atanh}\left (\frac {\sqrt {6}\,x}{2}\right )}{6} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [B] time = 0.11, size = 32, normalized size = 2.00 \[ - \frac {\sqrt {6} \log {\left (x - \frac {\sqrt {6}}{3} \right )}}{12} + \frac {\sqrt {6} \log {\left (x + \frac {\sqrt {6}}{3} \right )}}{12} \]
Verification of antiderivative is not currently implemented for this CAS.
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