Integrand size = 15, antiderivative size = 30 \[ \int \frac {\sqrt {4-3 x^2}}{x} \, dx=\sqrt {4-3 x^2}-2 \text {arctanh}\left (\frac {1}{2} \sqrt {4-3 x^2}\right ) \]
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Time = 0.01 (sec) , antiderivative size = 30, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.267, Rules used = {272, 52, 65, 212} \[ \int \frac {\sqrt {4-3 x^2}}{x} \, dx=\sqrt {4-3 x^2}-2 \text {arctanh}\left (\frac {1}{2} \sqrt {4-3 x^2}\right ) \]
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Rule 52
Rule 65
Rule 212
Rule 272
Rubi steps \begin{align*} \text {integral}& = \frac {1}{2} \text {Subst}\left (\int \frac {\sqrt {4-3 x}}{x} \, dx,x,x^2\right ) \\ & = \sqrt {4-3 x^2}+2 \text {Subst}\left (\int \frac {1}{\sqrt {4-3 x} x} \, dx,x,x^2\right ) \\ & = \sqrt {4-3 x^2}-\frac {4}{3} \text {Subst}\left (\int \frac {1}{\frac {4}{3}-\frac {x^2}{3}} \, dx,x,\sqrt {4-3 x^2}\right ) \\ & = \sqrt {4-3 x^2}-2 \text {arctanh}\left (\frac {1}{2} \sqrt {4-3 x^2}\right ) \\ \end{align*}
Time = 0.03 (sec) , antiderivative size = 30, normalized size of antiderivative = 1.00 \[ \int \frac {\sqrt {4-3 x^2}}{x} \, dx=\sqrt {4-3 x^2}-2 \text {arctanh}\left (\frac {1}{2} \sqrt {4-3 x^2}\right ) \]
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Time = 0.22 (sec) , antiderivative size = 25, normalized size of antiderivative = 0.83
method | result | size |
default | \(\sqrt {-3 x^{2}+4}-2 \,\operatorname {arctanh}\left (\frac {2}{\sqrt {-3 x^{2}+4}}\right )\) | \(25\) |
trager | \(\sqrt {-3 x^{2}+4}-2 \ln \left (\frac {\sqrt {-3 x^{2}+4}+2}{x}\right )\) | \(29\) |
pseudoelliptic | \(\sqrt {-3 x^{2}+4}+\ln \left (\sqrt {-3 x^{2}+4}-2\right )-\ln \left (\sqrt {-3 x^{2}+4}+2\right )\) | \(37\) |
meijerg | \(-\frac {-2 \left (2-4 \ln \left (2\right )+2 \ln \left (x \right )+\ln \left (3\right )+i \pi \right ) \sqrt {\pi }+4 \sqrt {\pi }-4 \sqrt {\pi }\, \sqrt {1-\frac {3 x^{2}}{4}}+4 \sqrt {\pi }\, \ln \left (\frac {1}{2}+\frac {\sqrt {1-\frac {3 x^{2}}{4}}}{2}\right )}{2 \sqrt {\pi }}\) | \(66\) |
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none
Time = 0.23 (sec) , antiderivative size = 28, normalized size of antiderivative = 0.93 \[ \int \frac {\sqrt {4-3 x^2}}{x} \, dx=\sqrt {-3 \, x^{2} + 4} + 2 \, \log \left (\frac {\sqrt {-3 \, x^{2} + 4} - 2}{x}\right ) \]
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Result contains complex when optimal does not.
Time = 0.84 (sec) , antiderivative size = 73, normalized size of antiderivative = 2.43 \[ \int \frac {\sqrt {4-3 x^2}}{x} \, dx=\begin {cases} i \sqrt {3 x^{2} - 4} - 2 \log {\left (x \right )} + \log {\left (x^{2} \right )} + 2 i \operatorname {asin}{\left (\frac {2 \sqrt {3}}{3 x} \right )} & \text {for}\: \left |{x^{2}}\right | > \frac {4}{3} \\\sqrt {4 - 3 x^{2}} + \log {\left (x^{2} \right )} - 2 \log {\left (\sqrt {1 - \frac {3 x^{2}}{4}} + 1 \right )} & \text {otherwise} \end {cases} \]
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Time = 0.27 (sec) , antiderivative size = 35, normalized size of antiderivative = 1.17 \[ \int \frac {\sqrt {4-3 x^2}}{x} \, dx=\sqrt {-3 \, x^{2} + 4} - 2 \, \log \left (\frac {4 \, \sqrt {-3 \, x^{2} + 4}}{{\left | x \right |}} + \frac {8}{{\left | x \right |}}\right ) \]
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Time = 0.29 (sec) , antiderivative size = 38, normalized size of antiderivative = 1.27 \[ \int \frac {\sqrt {4-3 x^2}}{x} \, dx=\sqrt {-3 \, x^{2} + 4} - \log \left (\sqrt {-3 \, x^{2} + 4} + 2\right ) + \log \left (-\sqrt {-3 \, x^{2} + 4} + 2\right ) \]
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Time = 0.11 (sec) , antiderivative size = 37, normalized size of antiderivative = 1.23 \[ \int \frac {\sqrt {4-3 x^2}}{x} \, dx=2\,\ln \left (\sqrt {\frac {4}{3\,x^2}-1}-\frac {2\,\sqrt {3}\,\sqrt {\frac {1}{x^2}}}{3}\right )+\sqrt {3}\,\sqrt {\frac {4}{3}-x^2} \]
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