Optimal. Leaf size=111 \[ -\frac{a^2 \left (c+d x^2\right )^{3/2}}{3 c x^3}-\frac{2 a b \left (c+d x^2\right )^{3/2}}{c x}+\frac{b x \sqrt{c+d x^2} (4 a d+b c)}{2 c}+\frac{b (4 a d+b c) \tanh ^{-1}\left (\frac{\sqrt{d} x}{\sqrt{c+d x^2}}\right )}{2 \sqrt{d}} \]
[Out]
________________________________________________________________________________________
Rubi [A] time = 0.0654748, antiderivative size = 111, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 5, integrand size = 24, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.208, Rules used = {462, 453, 195, 217, 206} \[ -\frac{a^2 \left (c+d x^2\right )^{3/2}}{3 c x^3}-\frac{2 a b \left (c+d x^2\right )^{3/2}}{c x}+\frac{b x \sqrt{c+d x^2} (4 a d+b c)}{2 c}+\frac{b (4 a d+b c) \tanh ^{-1}\left (\frac{\sqrt{d} x}{\sqrt{c+d x^2}}\right )}{2 \sqrt{d}} \]
Antiderivative was successfully verified.
[In]
[Out]
Rule 462
Rule 453
Rule 195
Rule 217
Rule 206
Rubi steps
\begin{align*} \int \frac{\left (a+b x^2\right )^2 \sqrt{c+d x^2}}{x^4} \, dx &=-\frac{a^2 \left (c+d x^2\right )^{3/2}}{3 c x^3}+\frac{\int \frac{\left (6 a b c+3 b^2 c x^2\right ) \sqrt{c+d x^2}}{x^2} \, dx}{3 c}\\ &=-\frac{a^2 \left (c+d x^2\right )^{3/2}}{3 c x^3}-\frac{2 a b \left (c+d x^2\right )^{3/2}}{c x}+\frac{(b (b c+4 a d)) \int \sqrt{c+d x^2} \, dx}{c}\\ &=\frac{b (b c+4 a d) x \sqrt{c+d x^2}}{2 c}-\frac{a^2 \left (c+d x^2\right )^{3/2}}{3 c x^3}-\frac{2 a b \left (c+d x^2\right )^{3/2}}{c x}+\frac{1}{2} (b (b c+4 a d)) \int \frac{1}{\sqrt{c+d x^2}} \, dx\\ &=\frac{b (b c+4 a d) x \sqrt{c+d x^2}}{2 c}-\frac{a^2 \left (c+d x^2\right )^{3/2}}{3 c x^3}-\frac{2 a b \left (c+d x^2\right )^{3/2}}{c x}+\frac{1}{2} (b (b c+4 a d)) \operatorname{Subst}\left (\int \frac{1}{1-d x^2} \, dx,x,\frac{x}{\sqrt{c+d x^2}}\right )\\ &=\frac{b (b c+4 a d) x \sqrt{c+d x^2}}{2 c}-\frac{a^2 \left (c+d x^2\right )^{3/2}}{3 c x^3}-\frac{2 a b \left (c+d x^2\right )^{3/2}}{c x}+\frac{b (b c+4 a d) \tanh ^{-1}\left (\frac{\sqrt{d} x}{\sqrt{c+d x^2}}\right )}{2 \sqrt{d}}\\ \end{align*}
Mathematica [A] time = 0.0960524, size = 91, normalized size = 0.82 \[ \sqrt{c+d x^2} \left (-\frac{a^2}{3 x^3}-\frac{a (a d+6 b c)}{3 c x}+\frac{b^2 x}{2}\right )+\frac{b (4 a d+b c) \log \left (\sqrt{d} \sqrt{c+d x^2}+d x\right )}{2 \sqrt{d}} \]
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [A] time = 0.009, size = 122, normalized size = 1.1 \begin{align*}{\frac{x{b}^{2}}{2}\sqrt{d{x}^{2}+c}}+{\frac{{b}^{2}c}{2}\ln \left ( x\sqrt{d}+\sqrt{d{x}^{2}+c} \right ){\frac{1}{\sqrt{d}}}}-{\frac{{a}^{2}}{3\,c{x}^{3}} \left ( d{x}^{2}+c \right ) ^{{\frac{3}{2}}}}-2\,{\frac{ab \left ( d{x}^{2}+c \right ) ^{3/2}}{cx}}+2\,{\frac{abdx\sqrt{d{x}^{2}+c}}{c}}+2\,ab\sqrt{d}\ln \left ( x\sqrt{d}+\sqrt{d{x}^{2}+c} \right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Maxima [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: ValueError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Fricas [A] time = 1.60159, size = 473, normalized size = 4.26 \begin{align*} \left [\frac{3 \,{\left (b^{2} c^{2} + 4 \, a b c d\right )} \sqrt{d} x^{3} \log \left (-2 \, d x^{2} - 2 \, \sqrt{d x^{2} + c} \sqrt{d} x - c\right ) + 2 \,{\left (3 \, b^{2} c d x^{4} - 2 \, a^{2} c d - 2 \,{\left (6 \, a b c d + a^{2} d^{2}\right )} x^{2}\right )} \sqrt{d x^{2} + c}}{12 \, c d x^{3}}, -\frac{3 \,{\left (b^{2} c^{2} + 4 \, a b c d\right )} \sqrt{-d} x^{3} \arctan \left (\frac{\sqrt{-d} x}{\sqrt{d x^{2} + c}}\right ) -{\left (3 \, b^{2} c d x^{4} - 2 \, a^{2} c d - 2 \,{\left (6 \, a b c d + a^{2} d^{2}\right )} x^{2}\right )} \sqrt{d x^{2} + c}}{6 \, c d x^{3}}\right ] \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Sympy [A] time = 4.09598, size = 170, normalized size = 1.53 \begin{align*} - \frac{a^{2} \sqrt{d} \sqrt{\frac{c}{d x^{2}} + 1}}{3 x^{2}} - \frac{a^{2} d^{\frac{3}{2}} \sqrt{\frac{c}{d x^{2}} + 1}}{3 c} - \frac{2 a b \sqrt{c}}{x \sqrt{1 + \frac{d x^{2}}{c}}} + 2 a b \sqrt{d} \operatorname{asinh}{\left (\frac{\sqrt{d} x}{\sqrt{c}} \right )} - \frac{2 a b d x}{\sqrt{c} \sqrt{1 + \frac{d x^{2}}{c}}} + \frac{b^{2} \sqrt{c} x \sqrt{1 + \frac{d x^{2}}{c}}}{2} + \frac{b^{2} c \operatorname{asinh}{\left (\frac{\sqrt{d} x}{\sqrt{c}} \right )}}{2 \sqrt{d}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Giac [B] time = 1.1244, size = 254, normalized size = 2.29 \begin{align*} \frac{1}{2} \, \sqrt{d x^{2} + c} b^{2} x - \frac{{\left (b^{2} c \sqrt{d} + 4 \, a b d^{\frac{3}{2}}\right )} \log \left ({\left (\sqrt{d} x - \sqrt{d x^{2} + c}\right )}^{2}\right )}{4 \, d} + \frac{2 \,{\left (6 \,{\left (\sqrt{d} x - \sqrt{d x^{2} + c}\right )}^{4} a b c \sqrt{d} + 3 \,{\left (\sqrt{d} x - \sqrt{d x^{2} + c}\right )}^{4} a^{2} d^{\frac{3}{2}} - 12 \,{\left (\sqrt{d} x - \sqrt{d x^{2} + c}\right )}^{2} a b c^{2} \sqrt{d} + 6 \, a b c^{3} \sqrt{d} + a^{2} c^{2} d^{\frac{3}{2}}\right )}}{3 \,{\left ({\left (\sqrt{d} x - \sqrt{d x^{2} + c}\right )}^{2} - c\right )}^{3}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]