Integrand size = 14, antiderivative size = 35 \[ \int \frac {1}{\sqrt {-2+5 x+3 x^2}} \, dx=\frac {\text {arctanh}\left (\frac {5+6 x}{2 \sqrt {3} \sqrt {-2+5 x+3 x^2}}\right )}{\sqrt {3}} \]
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Time = 0.01 (sec) , antiderivative size = 35, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.143, Rules used = {635, 212} \[ \int \frac {1}{\sqrt {-2+5 x+3 x^2}} \, dx=\frac {\text {arctanh}\left (\frac {6 x+5}{2 \sqrt {3} \sqrt {3 x^2+5 x-2}}\right )}{\sqrt {3}} \]
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Rule 212
Rule 635
Rubi steps \begin{align*} \text {integral}& = 2 \text {Subst}\left (\int \frac {1}{12-x^2} \, dx,x,\frac {5+6 x}{\sqrt {-2+5 x+3 x^2}}\right ) \\ & = \frac {\tanh ^{-1}\left (\frac {5+6 x}{2 \sqrt {3} \sqrt {-2+5 x+3 x^2}}\right )}{\sqrt {3}} \\ \end{align*}
Time = 0.10 (sec) , antiderivative size = 30, normalized size of antiderivative = 0.86 \[ \int \frac {1}{\sqrt {-2+5 x+3 x^2}} \, dx=\frac {2 \text {arctanh}\left (\frac {\sqrt {-\frac {2}{3}+\frac {5 x}{3}+x^2}}{2+x}\right )}{\sqrt {3}} \]
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Time = 2.12 (sec) , antiderivative size = 30, normalized size of antiderivative = 0.86
method | result | size |
default | \(\frac {\ln \left (\frac {\left (\frac {5}{2}+3 x \right ) \sqrt {3}}{3}+\sqrt {3 x^{2}+5 x -2}\right ) \sqrt {3}}{3}\) | \(30\) |
trager | \(\frac {\operatorname {RootOf}\left (\textit {\_Z}^{2}-3\right ) \ln \left (6 \operatorname {RootOf}\left (\textit {\_Z}^{2}-3\right ) x +6 \sqrt {3 x^{2}+5 x -2}+5 \operatorname {RootOf}\left (\textit {\_Z}^{2}-3\right )\right )}{3}\) | \(42\) |
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none
Time = 0.26 (sec) , antiderivative size = 38, normalized size of antiderivative = 1.09 \[ \int \frac {1}{\sqrt {-2+5 x+3 x^2}} \, dx=\frac {1}{6} \, \sqrt {3} \log \left (4 \, \sqrt {3} \sqrt {3 \, x^{2} + 5 \, x - 2} {\left (6 \, x + 5\right )} + 72 \, x^{2} + 120 \, x + 1\right ) \]
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Time = 0.30 (sec) , antiderivative size = 32, normalized size of antiderivative = 0.91 \[ \int \frac {1}{\sqrt {-2+5 x+3 x^2}} \, dx=\frac {\sqrt {3} \log {\left (6 x + 2 \sqrt {3} \sqrt {3 x^{2} + 5 x - 2} + 5 \right )}}{3} \]
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none
Time = 0.28 (sec) , antiderivative size = 28, normalized size of antiderivative = 0.80 \[ \int \frac {1}{\sqrt {-2+5 x+3 x^2}} \, dx=\frac {1}{3} \, \sqrt {3} \log \left (2 \, \sqrt {3} \sqrt {3 \, x^{2} + 5 \, x - 2} + 6 \, x + 5\right ) \]
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none
Time = 0.28 (sec) , antiderivative size = 54, normalized size of antiderivative = 1.54 \[ \int \frac {1}{\sqrt {-2+5 x+3 x^2}} \, dx=\frac {1}{12} \, \sqrt {3 \, x^{2} + 5 \, x - 2} {\left (6 \, x + 5\right )} + \frac {49}{72} \, \sqrt {3} \log \left ({\left | -2 \, \sqrt {3} {\left (\sqrt {3} x - \sqrt {3 \, x^{2} + 5 \, x - 2}\right )} - 5 \right |}\right ) \]
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Time = 9.19 (sec) , antiderivative size = 26, normalized size of antiderivative = 0.74 \[ \int \frac {1}{\sqrt {-2+5 x+3 x^2}} \, dx=\frac {\sqrt {3}\,\ln \left (\sqrt {3}\,\left (x+\frac {5}{6}\right )+\sqrt {3\,x^2+5\,x-2}\right )}{3} \]
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