Integrand size = 32, antiderivative size = 62 \[ \int \frac {-e^x+2 e^{2 x}}{\sqrt {-1-6 e^x+3 e^{2 x}}} \, dx=\frac {2}{3} \sqrt {-1-6 e^x+3 e^{2 x}}-\frac {\text {arctanh}\left (\frac {\sqrt {3} \left (1-e^x\right )}{\sqrt {-1-6 e^x+3 e^{2 x}}}\right )}{\sqrt {3}} \]
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Time = 0.04 (sec) , antiderivative size = 62, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.125, Rules used = {2320, 654, 635, 212} \[ \int \frac {-e^x+2 e^{2 x}}{\sqrt {-1-6 e^x+3 e^{2 x}}} \, dx=\frac {2}{3} \sqrt {-6 e^x+3 e^{2 x}-1}-\frac {\text {arctanh}\left (\frac {\sqrt {3} \left (1-e^x\right )}{\sqrt {-6 e^x+3 e^{2 x}-1}}\right )}{\sqrt {3}} \]
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Rule 212
Rule 635
Rule 654
Rule 2320
Rubi steps \begin{align*} \text {integral}& = \text {Subst}\left (\int \frac {-1+2 x}{\sqrt {-1-6 x+3 x^2}} \, dx,x,e^x\right ) \\ & = \frac {2}{3} \sqrt {-1-6 e^x+3 e^{2 x}}+\text {Subst}\left (\int \frac {1}{\sqrt {-1-6 x+3 x^2}} \, dx,x,e^x\right ) \\ & = \frac {2}{3} \sqrt {-1-6 e^x+3 e^{2 x}}+2 \text {Subst}\left (\int \frac {1}{12-x^2} \, dx,x,\frac {-6+6 e^x}{\sqrt {-1-6 e^x+3 e^{2 x}}}\right ) \\ & = \frac {2}{3} \sqrt {-1-6 e^x+3 e^{2 x}}-\frac {\tanh ^{-1}\left (\frac {\sqrt {3} \left (1-e^x\right )}{\sqrt {-1-6 e^x+3 e^{2 x}}}\right )}{\sqrt {3}} \\ \end{align*}
Time = 0.15 (sec) , antiderivative size = 56, normalized size of antiderivative = 0.90 \[ \int \frac {-e^x+2 e^{2 x}}{\sqrt {-1-6 e^x+3 e^{2 x}}} \, dx=\frac {2}{3} \sqrt {-1-6 e^x+3 e^{2 x}}-\frac {\log \left (3-3 e^x+\sqrt {-3-18 e^x+9 e^{2 x}}\right )}{\sqrt {3}} \]
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Time = 0.09 (sec) , antiderivative size = 50, normalized size of antiderivative = 0.81
method | result | size |
default | \(\frac {\ln \left (\frac {\left (-3+3 \,{\mathrm e}^{x}\right ) \sqrt {3}}{3}+\sqrt {-1-6 \,{\mathrm e}^{x}+3 \,{\mathrm e}^{2 x}}\right ) \sqrt {3}}{3}+\frac {2 \sqrt {-1-6 \,{\mathrm e}^{x}+3 \,{\mathrm e}^{2 x}}}{3}\) | \(50\) |
risch | \(\frac {\ln \left (\frac {\left (-3+3 \,{\mathrm e}^{x}\right ) \sqrt {3}}{3}+\sqrt {-1-6 \,{\mathrm e}^{x}+3 \,{\mathrm e}^{2 x}}\right ) \sqrt {3}}{3}+\frac {2 \sqrt {-1-6 \,{\mathrm e}^{x}+3 \,{\mathrm e}^{2 x}}}{3}\) | \(50\) |
parts | \(\frac {\ln \left (\frac {\left (-3+3 \,{\mathrm e}^{x}\right ) \sqrt {3}}{3}+\sqrt {-1-6 \,{\mathrm e}^{x}+3 \,{\mathrm e}^{2 x}}\right ) \sqrt {3}}{3}+\frac {2 \sqrt {-1-6 \,{\mathrm e}^{x}+3 \,{\mathrm e}^{2 x}}}{3}\) | \(50\) |
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Time = 0.32 (sec) , antiderivative size = 62, normalized size of antiderivative = 1.00 \[ \int \frac {-e^x+2 e^{2 x}}{\sqrt {-1-6 e^x+3 e^{2 x}}} \, dx=\frac {1}{6} \, \sqrt {3} \log \left ({\left (\sqrt {3} e^{x} - \sqrt {3}\right )} \sqrt {3 \, e^{\left (2 \, x\right )} - 6 \, e^{x} - 1} + 3 \, e^{\left (2 \, x\right )} - 6 \, e^{x} + 1\right ) + \frac {2}{3} \, \sqrt {3 \, e^{\left (2 \, x\right )} - 6 \, e^{x} - 1} \]
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Time = 0.84 (sec) , antiderivative size = 58, normalized size of antiderivative = 0.94 \[ \int \frac {-e^x+2 e^{2 x}}{\sqrt {-1-6 e^x+3 e^{2 x}}} \, dx=\frac {2 \sqrt {3 e^{2 x} - 6 e^{x} - 1}}{3} - \frac {\sqrt {3} \log {\left (2 \sqrt {3} \sqrt {3 e^{2 x} - 6 e^{x} - 1} - 6 e^{x} + 6 \right )}}{3} \]
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Time = 0.28 (sec) , antiderivative size = 48, normalized size of antiderivative = 0.77 \[ \int \frac {-e^x+2 e^{2 x}}{\sqrt {-1-6 e^x+3 e^{2 x}}} \, dx=\frac {1}{3} \, \sqrt {3} \log \left (2 \, \sqrt {3} \sqrt {3 \, e^{\left (2 \, x\right )} - 6 \, e^{x} - 1} + 6 \, e^{x} - 6\right ) + \frac {2}{3} \, \sqrt {3 \, e^{\left (2 \, x\right )} - 6 \, e^{x} - 1} \]
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Time = 0.40 (sec) , antiderivative size = 49, normalized size of antiderivative = 0.79 \[ \int \frac {-e^x+2 e^{2 x}}{\sqrt {-1-6 e^x+3 e^{2 x}}} \, dx=-\frac {1}{3} \, \sqrt {3} \log \left ({\left | -\sqrt {3} e^{x} + \sqrt {3} + \sqrt {3 \, e^{\left (2 \, x\right )} - 6 \, e^{x} - 1} \right |}\right ) + \frac {2}{3} \, \sqrt {3 \, e^{\left (2 \, x\right )} - 6 \, e^{x} - 1} \]
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Time = 0.91 (sec) , antiderivative size = 49, normalized size of antiderivative = 0.79 \[ \int \frac {-e^x+2 e^{2 x}}{\sqrt {-1-6 e^x+3 e^{2 x}}} \, dx=\frac {\sqrt {3}\,\ln \left (\sqrt {3\,{\mathrm {e}}^{2\,x}-6\,{\mathrm {e}}^x-1}-\sqrt {3}+\sqrt {3}\,{\mathrm {e}}^x\right )}{3}+\frac {2\,\sqrt {3\,{\mathrm {e}}^{2\,x}-6\,{\mathrm {e}}^x-1}}{3} \]
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