Integrand size = 16, antiderivative size = 42 \[ \int \frac {A+B x}{x (a+b x)^2} \, dx=\frac {A b-a B}{a b (a+b x)}+\frac {A \log (x)}{a^2}-\frac {A \log (a+b x)}{a^2} \]
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Time = 0.02 (sec) , antiderivative size = 42, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.062, Rules used = {78} \[ \int \frac {A+B x}{x (a+b x)^2} \, dx=-\frac {A \log (a+b x)}{a^2}+\frac {A \log (x)}{a^2}+\frac {A b-a B}{a b (a+b x)} \]
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Rule 78
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {A}{a^2 x}+\frac {-A b+a B}{a (a+b x)^2}-\frac {A b}{a^2 (a+b x)}\right ) \, dx \\ & = \frac {A b-a B}{a b (a+b x)}+\frac {A \log (x)}{a^2}-\frac {A \log (a+b x)}{a^2} \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 38, normalized size of antiderivative = 0.90 \[ \int \frac {A+B x}{x (a+b x)^2} \, dx=\frac {\frac {a (A b-a B)}{b (a+b x)}+A \log (x)-A \log (a+b x)}{a^2} \]
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Time = 0.96 (sec) , antiderivative size = 42, normalized size of antiderivative = 1.00
method | result | size |
norman | \(-\frac {\left (A b -B a \right ) x}{a^{2} \left (b x +a \right )}+\frac {A \ln \left (x \right )}{a^{2}}-\frac {A \ln \left (b x +a \right )}{a^{2}}\) | \(42\) |
default | \(\frac {A \ln \left (x \right )}{a^{2}}-\frac {-A b +B a}{a b \left (b x +a \right )}-\frac {A \ln \left (b x +a \right )}{a^{2}}\) | \(44\) |
risch | \(\frac {A}{a \left (b x +a \right )}-\frac {B}{\left (b x +a \right ) b}+\frac {A \ln \left (-x \right )}{a^{2}}-\frac {A \ln \left (b x +a \right )}{a^{2}}\) | \(48\) |
parallelrisch | \(\frac {A \ln \left (x \right ) x b -A \ln \left (b x +a \right ) x b +a A \ln \left (x \right )-A \ln \left (b x +a \right ) a -A b x +B a x}{a^{2} \left (b x +a \right )}\) | \(54\) |
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none
Time = 0.24 (sec) , antiderivative size = 62, normalized size of antiderivative = 1.48 \[ \int \frac {A+B x}{x (a+b x)^2} \, dx=-\frac {B a^{2} - A a b + {\left (A b^{2} x + A a b\right )} \log \left (b x + a\right ) - {\left (A b^{2} x + A a b\right )} \log \left (x\right )}{a^{2} b^{2} x + a^{3} b} \]
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Time = 0.14 (sec) , antiderivative size = 32, normalized size of antiderivative = 0.76 \[ \int \frac {A+B x}{x (a+b x)^2} \, dx=\frac {A \left (\log {\left (x \right )} - \log {\left (\frac {a}{b} + x \right )}\right )}{a^{2}} + \frac {A b - B a}{a^{2} b + a b^{2} x} \]
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none
Time = 0.21 (sec) , antiderivative size = 44, normalized size of antiderivative = 1.05 \[ \int \frac {A+B x}{x (a+b x)^2} \, dx=-\frac {B a - A b}{a b^{2} x + a^{2} b} - \frac {A \log \left (b x + a\right )}{a^{2}} + \frac {A \log \left (x\right )}{a^{2}} \]
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none
Time = 0.27 (sec) , antiderivative size = 55, normalized size of antiderivative = 1.31 \[ \int \frac {A+B x}{x (a+b x)^2} \, dx=b {\left (\frac {A \log \left ({\left | -\frac {a}{b x + a} + 1 \right |}\right )}{a^{2} b} - \frac {\frac {B a}{b x + a} - \frac {A b}{b x + a}}{a b^{2}}\right )} \]
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Time = 0.07 (sec) , antiderivative size = 39, normalized size of antiderivative = 0.93 \[ \int \frac {A+B x}{x (a+b x)^2} \, dx=\frac {A\,b-B\,a}{a\,b\,\left (a+b\,x\right )}-\frac {2\,A\,\mathrm {atanh}\left (\frac {2\,b\,x}{a}+1\right )}{a^2} \]
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