Optimal. Leaf size=76 \[ -\frac{A b-a B}{2 a^2 \left (a+b x^2\right )}+\frac{(2 A b-a B) \log \left (a+b x^2\right )}{2 a^3}-\frac{\log (x) (2 A b-a B)}{a^3}-\frac{A}{2 a^2 x^2} \]
[Out]
________________________________________________________________________________________
Rubi [A] time = 0.0745697, antiderivative size = 76, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 2, integrand size = 20, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.1, Rules used = {446, 77} \[ -\frac{A b-a B}{2 a^2 \left (a+b x^2\right )}+\frac{(2 A b-a B) \log \left (a+b x^2\right )}{2 a^3}-\frac{\log (x) (2 A b-a B)}{a^3}-\frac{A}{2 a^2 x^2} \]
Antiderivative was successfully verified.
[In]
[Out]
Rule 446
Rule 77
Rubi steps
\begin{align*} \int \frac{A+B x^2}{x^3 \left (a+b x^2\right )^2} \, dx &=\frac{1}{2} \operatorname{Subst}\left (\int \frac{A+B x}{x^2 (a+b x)^2} \, dx,x,x^2\right )\\ &=\frac{1}{2} \operatorname{Subst}\left (\int \left (\frac{A}{a^2 x^2}+\frac{-2 A b+a B}{a^3 x}-\frac{b (-A b+a B)}{a^2 (a+b x)^2}-\frac{b (-2 A b+a B)}{a^3 (a+b x)}\right ) \, dx,x,x^2\right )\\ &=-\frac{A}{2 a^2 x^2}-\frac{A b-a B}{2 a^2 \left (a+b x^2\right )}-\frac{(2 A b-a B) \log (x)}{a^3}+\frac{(2 A b-a B) \log \left (a+b x^2\right )}{2 a^3}\\ \end{align*}
Mathematica [A] time = 0.0462199, size = 64, normalized size = 0.84 \[ \frac{\frac{a (a B-A b)}{a+b x^2}+(2 A b-a B) \log \left (a+b x^2\right )+2 \log (x) (a B-2 A b)-\frac{a A}{x^2}}{2 a^3} \]
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [A] time = 0.012, size = 86, normalized size = 1.1 \begin{align*} -{\frac{A}{2\,{a}^{2}{x}^{2}}}-2\,{\frac{A\ln \left ( x \right ) b}{{a}^{3}}}+{\frac{\ln \left ( x \right ) B}{{a}^{2}}}+{\frac{b\ln \left ( b{x}^{2}+a \right ) A}{{a}^{3}}}-{\frac{\ln \left ( b{x}^{2}+a \right ) B}{2\,{a}^{2}}}-{\frac{Ab}{2\,{a}^{2} \left ( b{x}^{2}+a \right ) }}+{\frac{B}{2\,a \left ( b{x}^{2}+a \right ) }} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Maxima [A] time = 0.992297, size = 103, normalized size = 1.36 \begin{align*} \frac{{\left (B a - 2 \, A b\right )} x^{2} - A a}{2 \,{\left (a^{2} b x^{4} + a^{3} x^{2}\right )}} - \frac{{\left (B a - 2 \, A b\right )} \log \left (b x^{2} + a\right )}{2 \, a^{3}} + \frac{{\left (B a - 2 \, A b\right )} \log \left (x^{2}\right )}{2 \, a^{3}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Fricas [A] time = 1.19792, size = 248, normalized size = 3.26 \begin{align*} -\frac{A a^{2} -{\left (B a^{2} - 2 \, A a b\right )} x^{2} +{\left ({\left (B a b - 2 \, A b^{2}\right )} x^{4} +{\left (B a^{2} - 2 \, A a b\right )} x^{2}\right )} \log \left (b x^{2} + a\right ) - 2 \,{\left ({\left (B a b - 2 \, A b^{2}\right )} x^{4} +{\left (B a^{2} - 2 \, A a b\right )} x^{2}\right )} \log \left (x\right )}{2 \,{\left (a^{3} b x^{4} + a^{4} x^{2}\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Sympy [A] time = 1.03925, size = 70, normalized size = 0.92 \begin{align*} \frac{- A a + x^{2} \left (- 2 A b + B a\right )}{2 a^{3} x^{2} + 2 a^{2} b x^{4}} + \frac{\left (- 2 A b + B a\right ) \log{\left (x \right )}}{a^{3}} - \frac{\left (- 2 A b + B a\right ) \log{\left (\frac{a}{b} + x^{2} \right )}}{2 a^{3}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Giac [A] time = 1.1369, size = 111, normalized size = 1.46 \begin{align*} \frac{{\left (B a - 2 \, A b\right )} \log \left (x^{2}\right )}{2 \, a^{3}} + \frac{B a x^{2} - 2 \, A b x^{2} - A a}{2 \,{\left (b x^{4} + a x^{2}\right )} a^{2}} - \frac{{\left (B a b - 2 \, A b^{2}\right )} \log \left ({\left | b x^{2} + a \right |}\right )}{2 \, a^{3} b} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]