Integrand size = 24, antiderivative size = 85 \[ \int \frac {(2+e x)^{7/2}}{\sqrt {12-3 e^2 x^2}} \, dx=-\frac {128 \sqrt {2-e x}}{\sqrt {3} e}+\frac {32 (2-e x)^{3/2}}{\sqrt {3} e}-\frac {8 \sqrt {3} (2-e x)^{5/2}}{5 e}+\frac {2 (2-e x)^{7/2}}{7 \sqrt {3} e} \]
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Time = 0.02 (sec) , antiderivative size = 85, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.083, Rules used = {641, 45} \[ \int \frac {(2+e x)^{7/2}}{\sqrt {12-3 e^2 x^2}} \, dx=\frac {2 (2-e x)^{7/2}}{7 \sqrt {3} e}-\frac {8 \sqrt {3} (2-e x)^{5/2}}{5 e}+\frac {32 (2-e x)^{3/2}}{\sqrt {3} e}-\frac {128 \sqrt {2-e x}}{\sqrt {3} e} \]
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Rule 45
Rule 641
Rubi steps \begin{align*} \text {integral}& = \int \frac {(2+e x)^3}{\sqrt {6-3 e x}} \, dx \\ & = \int \left (\frac {64}{\sqrt {6-3 e x}}-16 \sqrt {6-3 e x}+\frac {4}{3} (6-3 e x)^{3/2}-\frac {1}{27} (6-3 e x)^{5/2}\right ) \, dx \\ & = -\frac {128 \sqrt {2-e x}}{\sqrt {3} e}+\frac {32 (2-e x)^{3/2}}{\sqrt {3} e}-\frac {8 \sqrt {3} (2-e x)^{5/2}}{5 e}+\frac {2 (2-e x)^{7/2}}{7 \sqrt {3} e} \\ \end{align*}
Time = 0.39 (sec) , antiderivative size = 53, normalized size of antiderivative = 0.62 \[ \int \frac {(2+e x)^{7/2}}{\sqrt {12-3 e^2 x^2}} \, dx=-\frac {2 \sqrt {4-e^2 x^2} \left (1416+284 e x+54 e^2 x^2+5 e^3 x^3\right )}{35 e \sqrt {6+3 e x}} \]
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Time = 2.26 (sec) , antiderivative size = 47, normalized size of antiderivative = 0.55
method | result | size |
default | \(-\frac {2 \sqrt {-3 x^{2} e^{2}+12}\, \left (5 e^{3} x^{3}+54 x^{2} e^{2}+284 e x +1416\right )}{105 \sqrt {e x +2}\, e}\) | \(47\) |
gosper | \(\frac {2 \left (e x -2\right ) \left (5 e^{3} x^{3}+54 x^{2} e^{2}+284 e x +1416\right ) \sqrt {e x +2}}{35 e \sqrt {-3 x^{2} e^{2}+12}}\) | \(52\) |
risch | \(\frac {2 \sqrt {\frac {-3 x^{2} e^{2}+12}{e x +2}}\, \sqrt {e x +2}\, \left (5 e^{3} x^{3}+54 x^{2} e^{2}+284 e x +1416\right ) \left (e x -2\right )}{35 \sqrt {-3 x^{2} e^{2}+12}\, e \sqrt {-3 e x +6}}\) | \(80\) |
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none
Time = 0.35 (sec) , antiderivative size = 54, normalized size of antiderivative = 0.64 \[ \int \frac {(2+e x)^{7/2}}{\sqrt {12-3 e^2 x^2}} \, dx=-\frac {2 \, {\left (5 \, e^{3} x^{3} + 54 \, e^{2} x^{2} + 284 \, e x + 1416\right )} \sqrt {-3 \, e^{2} x^{2} + 12} \sqrt {e x + 2}}{105 \, {\left (e^{2} x + 2 \, e\right )}} \]
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Timed out. \[ \int \frac {(2+e x)^{7/2}}{\sqrt {12-3 e^2 x^2}} \, dx=\text {Timed out} \]
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Result contains complex when optimal does not.
Time = 0.28 (sec) , antiderivative size = 45, normalized size of antiderivative = 0.53 \[ \int \frac {(2+e x)^{7/2}}{\sqrt {12-3 e^2 x^2}} \, dx=-\frac {2 i \, \sqrt {3} {\left (5 \, e^{4} x^{4} + 44 \, e^{3} x^{3} + 176 \, e^{2} x^{2} + 848 \, e x - 2832\right )}}{105 \, \sqrt {e x - 2} e} \]
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Exception generated. \[ \int \frac {(2+e x)^{7/2}}{\sqrt {12-3 e^2 x^2}} \, dx=\text {Exception raised: TypeError} \]
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Time = 0.21 (sec) , antiderivative size = 74, normalized size of antiderivative = 0.87 \[ \int \frac {(2+e x)^{7/2}}{\sqrt {12-3 e^2 x^2}} \, dx=-\frac {\sqrt {12-3\,e^2\,x^2}\,\left (\frac {944\,\sqrt {e\,x+2}}{35\,e^2}+\frac {36\,x^2\,\sqrt {e\,x+2}}{35}+\frac {568\,x\,\sqrt {e\,x+2}}{105\,e}+\frac {2\,e\,x^3\,\sqrt {e\,x+2}}{21}\right )}{x+\frac {2}{e}} \]
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