Integrand size = 20, antiderivative size = 10 \[ \int \frac {a+3 b x^2}{a x+b x^3} \, dx=\log \left (a x+b x^3\right ) \]
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Time = 0.01 (sec) , antiderivative size = 10, normalized size of antiderivative = 1.00, number of steps used = 1, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.050, Rules used = {1601} \[ \int \frac {a+3 b x^2}{a x+b x^3} \, dx=\log \left (a x+b x^3\right ) \]
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Rule 1601
Rubi steps \begin{align*} \text {integral}& = \log \left (a x+b x^3\right ) \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 11, normalized size of antiderivative = 1.10 \[ \int \frac {a+3 b x^2}{a x+b x^3} \, dx=\log (x)+\log \left (a+b x^2\right ) \]
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Time = 0.79 (sec) , antiderivative size = 11, normalized size of antiderivative = 1.10
method | result | size |
derivativedivides | \(\ln \left (b \,x^{3}+a x \right )\) | \(11\) |
default | \(\ln \left (x \left (b \,x^{2}+a \right )\right )\) | \(11\) |
risch | \(\ln \left (b \,x^{3}+a x \right )\) | \(11\) |
norman | \(\ln \left (x \right )+\ln \left (b \,x^{2}+a \right )\) | \(12\) |
parallelrisch | \(\ln \left (x \right )+\ln \left (b \,x^{2}+a \right )\) | \(12\) |
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none
Time = 0.26 (sec) , antiderivative size = 10, normalized size of antiderivative = 1.00 \[ \int \frac {a+3 b x^2}{a x+b x^3} \, dx=\log \left (b x^{3} + a x\right ) \]
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Time = 0.06 (sec) , antiderivative size = 8, normalized size of antiderivative = 0.80 \[ \int \frac {a+3 b x^2}{a x+b x^3} \, dx=\log {\left (a x + b x^{3} \right )} \]
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none
Time = 0.19 (sec) , antiderivative size = 10, normalized size of antiderivative = 1.00 \[ \int \frac {a+3 b x^2}{a x+b x^3} \, dx=\log \left (b x^{3} + a x\right ) \]
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none
Time = 0.28 (sec) , antiderivative size = 11, normalized size of antiderivative = 1.10 \[ \int \frac {a+3 b x^2}{a x+b x^3} \, dx=\log \left ({\left | b x^{3} + a x \right |}\right ) \]
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Time = 0.03 (sec) , antiderivative size = 10, normalized size of antiderivative = 1.00 \[ \int \frac {a+3 b x^2}{a x+b x^3} \, dx=\ln \left (b\,x^3+a\,x\right ) \]
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