Integrand size = 15, antiderivative size = 26 \[ \int \frac {4-x-3 e^x x}{x} \, dx=-2+e^x-x-\log (5)+4 \left (-e^x+\log \left (\frac {x}{4}\right )\right ) \]
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Time = 0.01 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.50, number of steps used = 5, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.200, Rules used = {14, 2225, 45} \[ \int \frac {4-x-3 e^x x}{x} \, dx=-x-3 e^x+4 \log (x) \]
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Rule 14
Rule 45
Rule 2225
Rubi steps \begin{align*} \text {integral}& = \int \left (-3 e^x+\frac {4-x}{x}\right ) \, dx \\ & = -\left (3 \int e^x \, dx\right )+\int \frac {4-x}{x} \, dx \\ & = -3 e^x+\int \left (-1+\frac {4}{x}\right ) \, dx \\ & = -3 e^x-x+4 \log (x) \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.50 \[ \int \frac {4-x-3 e^x x}{x} \, dx=-3 e^x-x+4 \log (x) \]
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Time = 0.06 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.50
method | result | size |
default | \(-x +4 \ln \left (x \right )-3 \,{\mathrm e}^{x}\) | \(13\) |
norman | \(-x +4 \ln \left (x \right )-3 \,{\mathrm e}^{x}\) | \(13\) |
risch | \(-x +4 \ln \left (x \right )-3 \,{\mathrm e}^{x}\) | \(13\) |
parallelrisch | \(-x +4 \ln \left (x \right )-3 \,{\mathrm e}^{x}\) | \(13\) |
parts | \(-x +4 \ln \left (x \right )-3 \,{\mathrm e}^{x}\) | \(13\) |
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none
Time = 0.23 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.46 \[ \int \frac {4-x-3 e^x x}{x} \, dx=-x - 3 \, e^{x} + 4 \, \log \left (x\right ) \]
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Time = 0.05 (sec) , antiderivative size = 10, normalized size of antiderivative = 0.38 \[ \int \frac {4-x-3 e^x x}{x} \, dx=- x - 3 e^{x} + 4 \log {\left (x \right )} \]
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none
Time = 0.19 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.46 \[ \int \frac {4-x-3 e^x x}{x} \, dx=-x - 3 \, e^{x} + 4 \, \log \left (x\right ) \]
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none
Time = 0.28 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.46 \[ \int \frac {4-x-3 e^x x}{x} \, dx=-x - 3 \, e^{x} + 4 \, \log \left (x\right ) \]
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Time = 0.06 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.46 \[ \int \frac {4-x-3 e^x x}{x} \, dx=4\,\ln \left (x\right )-3\,{\mathrm {e}}^x-x \]
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