Optimal. Leaf size=62 \[ -\frac{b \log \left (a+b x^2\right )}{2 a (b c-a d)}+\frac{d \log \left (c+d x^2\right )}{2 c (b c-a d)}+\frac{\log (x)}{a c} \]
[Out]
________________________________________________________________________________________
Rubi [A] time = 0.0611619, antiderivative size = 62, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 2, integrand size = 22, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.091, Rules used = {446, 72} \[ -\frac{b \log \left (a+b x^2\right )}{2 a (b c-a d)}+\frac{d \log \left (c+d x^2\right )}{2 c (b c-a d)}+\frac{\log (x)}{a c} \]
Antiderivative was successfully verified.
[In]
[Out]
Rule 446
Rule 72
Rubi steps
\begin{align*} \int \frac{1}{x \left (a+b x^2\right ) \left (c+d x^2\right )} \, dx &=\frac{1}{2} \operatorname{Subst}\left (\int \frac{1}{x (a+b x) (c+d x)} \, dx,x,x^2\right )\\ &=\frac{1}{2} \operatorname{Subst}\left (\int \left (\frac{1}{a c x}+\frac{b^2}{a (-b c+a d) (a+b x)}+\frac{d^2}{c (b c-a d) (c+d x)}\right ) \, dx,x,x^2\right )\\ &=\frac{\log (x)}{a c}-\frac{b \log \left (a+b x^2\right )}{2 a (b c-a d)}+\frac{d \log \left (c+d x^2\right )}{2 c (b c-a d)}\\ \end{align*}
Mathematica [A] time = 0.0273714, size = 54, normalized size = 0.87 \[ \frac{-b c \log \left (a+b x^2\right )+a d \log \left (c+d x^2\right )-2 a d \log (x)+2 b c \log (x)}{2 a b c^2-2 a^2 c d} \]
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [A] time = 0.008, size = 59, normalized size = 1. \begin{align*} -{\frac{d\ln \left ( d{x}^{2}+c \right ) }{2\,c \left ( ad-bc \right ) }}+{\frac{\ln \left ( x \right ) }{ac}}+{\frac{b\ln \left ( b{x}^{2}+a \right ) }{2\,a \left ( ad-bc \right ) }} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Maxima [A] time = 1.07348, size = 82, normalized size = 1.32 \begin{align*} -\frac{b \log \left (b x^{2} + a\right )}{2 \,{\left (a b c - a^{2} d\right )}} + \frac{d \log \left (d x^{2} + c\right )}{2 \,{\left (b c^{2} - a c d\right )}} + \frac{\log \left (x^{2}\right )}{2 \, a c} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Fricas [A] time = 1.86139, size = 123, normalized size = 1.98 \begin{align*} -\frac{b c \log \left (b x^{2} + a\right ) - a d \log \left (d x^{2} + c\right ) - 2 \,{\left (b c - a d\right )} \log \left (x\right )}{2 \,{\left (a b c^{2} - a^{2} c d\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Sympy [F(-1)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Giac [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: NotImplementedError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]