Integrand size = 14, antiderivative size = 14 \[ \int \frac {3 e^2}{8 x^3 \log ^2(5)} \, dx=-\frac {3 e^2}{16 x^2 \log ^2(5)} \]
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Time = 0.00 (sec) , antiderivative size = 14, 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 = {12, 30} \[ \int \frac {3 e^2}{8 x^3 \log ^2(5)} \, dx=-\frac {3 e^2}{16 x^2 \log ^2(5)} \]
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Rule 12
Rule 30
Rubi steps \begin{align*} \text {integral}& = \frac {\left (3 e^2\right ) \int \frac {1}{x^3} \, dx}{8 \log ^2(5)} \\ & = -\frac {3 e^2}{16 x^2 \log ^2(5)} \\ \end{align*}
Time = 0.00 (sec) , antiderivative size = 14, normalized size of antiderivative = 1.00 \[ \int \frac {3 e^2}{8 x^3 \log ^2(5)} \, dx=-\frac {3 e^2}{16 x^2 \log ^2(5)} \]
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Time = 0.51 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.86
method | result | size |
gosper | \(-\frac {3 \,{\mathrm e}^{2}}{16 \ln \left (5\right )^{2} x^{2}}\) | \(12\) |
default | \(-\frac {3 \,{\mathrm e}^{2}}{16 \ln \left (5\right )^{2} x^{2}}\) | \(12\) |
norman | \(-\frac {3 \,{\mathrm e}^{2}}{16 \ln \left (5\right )^{2} x^{2}}\) | \(12\) |
risch | \(-\frac {3 \,{\mathrm e}^{2}}{16 \ln \left (5\right )^{2} x^{2}}\) | \(12\) |
parallelrisch | \(-\frac {3 \,{\mathrm e}^{2}}{16 \ln \left (5\right )^{2} x^{2}}\) | \(12\) |
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none
Time = 0.23 (sec) , antiderivative size = 11, normalized size of antiderivative = 0.79 \[ \int \frac {3 e^2}{8 x^3 \log ^2(5)} \, dx=-\frac {3 \, e^{2}}{16 \, x^{2} \log \left (5\right )^{2}} \]
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Time = 0.02 (sec) , antiderivative size = 15, normalized size of antiderivative = 1.07 \[ \int \frac {3 e^2}{8 x^3 \log ^2(5)} \, dx=- \frac {3 e^{2}}{16 x^{2} \log {\left (5 \right )}^{2}} \]
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Time = 0.19 (sec) , antiderivative size = 11, normalized size of antiderivative = 0.79 \[ \int \frac {3 e^2}{8 x^3 \log ^2(5)} \, dx=-\frac {3 \, e^{2}}{16 \, x^{2} \log \left (5\right )^{2}} \]
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Time = 0.25 (sec) , antiderivative size = 11, normalized size of antiderivative = 0.79 \[ \int \frac {3 e^2}{8 x^3 \log ^2(5)} \, dx=-\frac {3 \, e^{2}}{16 \, x^{2} \log \left (5\right )^{2}} \]
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Time = 10.17 (sec) , antiderivative size = 11, normalized size of antiderivative = 0.79 \[ \int \frac {3 e^2}{8 x^3 \log ^2(5)} \, dx=-\frac {3\,{\mathrm {e}}^2}{16\,x^2\,{\ln \left (5\right )}^2} \]
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