Optimal. Leaf size=135 \[ \frac{2 a^3 (a x+1)}{\sqrt{c-a^2 c x^2}}-\frac{8 a^2 \sqrt{c-a^2 c x^2}}{3 c x}-\frac{a \sqrt{c-a^2 c x^2}}{c x^2}-\frac{\sqrt{c-a^2 c x^2}}{3 c x^3}-\frac{3 a^3 \tanh ^{-1}\left (\frac{\sqrt{c-a^2 c x^2}}{\sqrt{c}}\right )}{\sqrt{c}} \]
[Out]
________________________________________________________________________________________
Rubi [A] time = 0.406531, antiderivative size = 135, normalized size of antiderivative = 1., number of steps used = 8, number of rules used = 7, integrand size = 27, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.259, Rules used = {6151, 1805, 1807, 807, 266, 63, 208} \[ \frac{2 a^3 (a x+1)}{\sqrt{c-a^2 c x^2}}-\frac{8 a^2 \sqrt{c-a^2 c x^2}}{3 c x}-\frac{a \sqrt{c-a^2 c x^2}}{c x^2}-\frac{\sqrt{c-a^2 c x^2}}{3 c x^3}-\frac{3 a^3 \tanh ^{-1}\left (\frac{\sqrt{c-a^2 c x^2}}{\sqrt{c}}\right )}{\sqrt{c}} \]
Antiderivative was successfully verified.
[In]
[Out]
Rule 6151
Rule 1805
Rule 1807
Rule 807
Rule 266
Rule 63
Rule 208
Rubi steps
\begin{align*} \int \frac{e^{2 \tanh ^{-1}(a x)}}{x^4 \sqrt{c-a^2 c x^2}} \, dx &=c \int \frac{(1+a x)^2}{x^4 \left (c-a^2 c x^2\right )^{3/2}} \, dx\\ &=\frac{2 a^3 (1+a x)}{\sqrt{c-a^2 c x^2}}-\int \frac{-1-2 a x-2 a^2 x^2-2 a^3 x^3}{x^4 \sqrt{c-a^2 c x^2}} \, dx\\ &=\frac{2 a^3 (1+a x)}{\sqrt{c-a^2 c x^2}}-\frac{\sqrt{c-a^2 c x^2}}{3 c x^3}+\frac{\int \frac{6 a c+8 a^2 c x+6 a^3 c x^2}{x^3 \sqrt{c-a^2 c x^2}} \, dx}{3 c}\\ &=\frac{2 a^3 (1+a x)}{\sqrt{c-a^2 c x^2}}-\frac{\sqrt{c-a^2 c x^2}}{3 c x^3}-\frac{a \sqrt{c-a^2 c x^2}}{c x^2}-\frac{\int \frac{-16 a^2 c^2-18 a^3 c^2 x}{x^2 \sqrt{c-a^2 c x^2}} \, dx}{6 c^2}\\ &=\frac{2 a^3 (1+a x)}{\sqrt{c-a^2 c x^2}}-\frac{\sqrt{c-a^2 c x^2}}{3 c x^3}-\frac{a \sqrt{c-a^2 c x^2}}{c x^2}-\frac{8 a^2 \sqrt{c-a^2 c x^2}}{3 c x}+\left (3 a^3\right ) \int \frac{1}{x \sqrt{c-a^2 c x^2}} \, dx\\ &=\frac{2 a^3 (1+a x)}{\sqrt{c-a^2 c x^2}}-\frac{\sqrt{c-a^2 c x^2}}{3 c x^3}-\frac{a \sqrt{c-a^2 c x^2}}{c x^2}-\frac{8 a^2 \sqrt{c-a^2 c x^2}}{3 c x}+\frac{1}{2} \left (3 a^3\right ) \operatorname{Subst}\left (\int \frac{1}{x \sqrt{c-a^2 c x}} \, dx,x,x^2\right )\\ &=\frac{2 a^3 (1+a x)}{\sqrt{c-a^2 c x^2}}-\frac{\sqrt{c-a^2 c x^2}}{3 c x^3}-\frac{a \sqrt{c-a^2 c x^2}}{c x^2}-\frac{8 a^2 \sqrt{c-a^2 c x^2}}{3 c x}-\frac{(3 a) \operatorname{Subst}\left (\int \frac{1}{\frac{1}{a^2}-\frac{x^2}{a^2 c}} \, dx,x,\sqrt{c-a^2 c x^2}\right )}{c}\\ &=\frac{2 a^3 (1+a x)}{\sqrt{c-a^2 c x^2}}-\frac{\sqrt{c-a^2 c x^2}}{3 c x^3}-\frac{a \sqrt{c-a^2 c x^2}}{c x^2}-\frac{8 a^2 \sqrt{c-a^2 c x^2}}{3 c x}-\frac{3 a^3 \tanh ^{-1}\left (\frac{\sqrt{c-a^2 c x^2}}{\sqrt{c}}\right )}{\sqrt{c}}\\ \end{align*}
Mathematica [A] time = 0.165517, size = 101, normalized size = 0.75 \[ \frac{\left (-14 a^3 x^3+5 a^2 x^2+2 a x+1\right ) \sqrt{c-a^2 c x^2}}{3 c x^3 (a x-1)}-\frac{3 a^3 \log \left (\sqrt{c} \sqrt{c-a^2 c x^2}+c\right )}{\sqrt{c}}+\frac{3 a^3 \log (x)}{\sqrt{c}} \]
Warning: Unable to verify antiderivative.
[In]
[Out]
________________________________________________________________________________________
Maple [A] time = 0.045, size = 150, normalized size = 1.1 \begin{align*} -{\frac{8\,{a}^{2}}{3\,cx}\sqrt{-{a}^{2}c{x}^{2}+c}}-3\,{\frac{{a}^{3}}{\sqrt{c}}\ln \left ({\frac{2\,c+2\,\sqrt{c}\sqrt{-{a}^{2}c{x}^{2}+c}}{x}} \right ) }-2\,{\frac{{a}^{2}}{c}\sqrt{-c{a}^{2} \left ( x-{a}^{-1} \right ) ^{2}-2\,ac \left ( x-{a}^{-1} \right ) } \left ( x-{a}^{-1} \right ) ^{-1}}-{\frac{a}{c{x}^{2}}\sqrt{-{a}^{2}c{x}^{2}+c}}-{\frac{1}{3\,c{x}^{3}}\sqrt{-{a}^{2}c{x}^{2}+c}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Maxima [F] time = 0., size = 0, normalized size = 0. \begin{align*} -\int \frac{{\left (a x + 1\right )}^{2}}{\sqrt{-a^{2} c x^{2} + c}{\left (a^{2} x^{2} - 1\right )} x^{4}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Fricas [A] time = 2.86264, size = 477, normalized size = 3.53 \begin{align*} \left [\frac{9 \,{\left (a^{4} x^{4} - a^{3} x^{3}\right )} \sqrt{c} \log \left (-\frac{a^{2} c x^{2} + 2 \, \sqrt{-a^{2} c x^{2} + c} \sqrt{c} - 2 \, c}{x^{2}}\right ) - 2 \,{\left (14 \, a^{3} x^{3} - 5 \, a^{2} x^{2} - 2 \, a x - 1\right )} \sqrt{-a^{2} c x^{2} + c}}{6 \,{\left (a c x^{4} - c x^{3}\right )}}, -\frac{9 \,{\left (a^{4} x^{4} - a^{3} x^{3}\right )} \sqrt{-c} \arctan \left (\frac{\sqrt{-a^{2} c x^{2} + c} \sqrt{-c}}{a^{2} c x^{2} - c}\right ) +{\left (14 \, a^{3} x^{3} - 5 \, a^{2} x^{2} - 2 \, a x - 1\right )} \sqrt{-a^{2} c x^{2} + c}}{3 \,{\left (a c x^{4} - c x^{3}\right )}}\right ] \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} - \int \frac{a x}{a x^{5} \sqrt{- a^{2} c x^{2} + c} - x^{4} \sqrt{- a^{2} c x^{2} + c}}\, dx - \int \frac{1}{a x^{5} \sqrt{- a^{2} c x^{2} + c} - x^{4} \sqrt{- a^{2} c x^{2} + c}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \mathit{undef} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]