Optimal. Leaf size=165 \[ -\frac{a \sqrt{a^2 c x^2+c}}{6 c^2 x^2}+\frac{5 a^2 \sqrt{a^2 c x^2+c} \tan ^{-1}(a x)}{3 c^2 x}-\frac{\sqrt{a^2 c x^2+c} \tan ^{-1}(a x)}{3 c^2 x^3}+\frac{11 a^3 \tanh ^{-1}\left (\frac{\sqrt{a^2 c x^2+c}}{\sqrt{c}}\right )}{6 c^{3/2}}+\frac{a^3}{c \sqrt{a^2 c x^2+c}}+\frac{a^4 x \tan ^{-1}(a x)}{c \sqrt{a^2 c x^2+c}} \]
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Rubi [A] time = 0.494693, antiderivative size = 165, normalized size of antiderivative = 1., number of steps used = 16, number of rules used = 8, integrand size = 22, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.364, Rules used = {4966, 4962, 266, 51, 63, 208, 4944, 4894} \[ -\frac{a \sqrt{a^2 c x^2+c}}{6 c^2 x^2}+\frac{5 a^2 \sqrt{a^2 c x^2+c} \tan ^{-1}(a x)}{3 c^2 x}-\frac{\sqrt{a^2 c x^2+c} \tan ^{-1}(a x)}{3 c^2 x^3}+\frac{11 a^3 \tanh ^{-1}\left (\frac{\sqrt{a^2 c x^2+c}}{\sqrt{c}}\right )}{6 c^{3/2}}+\frac{a^3}{c \sqrt{a^2 c x^2+c}}+\frac{a^4 x \tan ^{-1}(a x)}{c \sqrt{a^2 c x^2+c}} \]
Antiderivative was successfully verified.
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Rule 4966
Rule 4962
Rule 266
Rule 51
Rule 63
Rule 208
Rule 4944
Rule 4894
Rubi steps
\begin{align*} \int \frac{\tan ^{-1}(a x)}{x^4 \left (c+a^2 c x^2\right )^{3/2}} \, dx &=-\left (a^2 \int \frac{\tan ^{-1}(a x)}{x^2 \left (c+a^2 c x^2\right )^{3/2}} \, dx\right )+\frac{\int \frac{\tan ^{-1}(a x)}{x^4 \sqrt{c+a^2 c x^2}} \, dx}{c}\\ &=-\frac{\sqrt{c+a^2 c x^2} \tan ^{-1}(a x)}{3 c^2 x^3}+a^4 \int \frac{\tan ^{-1}(a x)}{\left (c+a^2 c x^2\right )^{3/2}} \, dx+\frac{a \int \frac{1}{x^3 \sqrt{c+a^2 c x^2}} \, dx}{3 c}-\frac{\left (2 a^2\right ) \int \frac{\tan ^{-1}(a x)}{x^2 \sqrt{c+a^2 c x^2}} \, dx}{3 c}-\frac{a^2 \int \frac{\tan ^{-1}(a x)}{x^2 \sqrt{c+a^2 c x^2}} \, dx}{c}\\ &=\frac{a^3}{c \sqrt{c+a^2 c x^2}}+\frac{a^4 x \tan ^{-1}(a x)}{c \sqrt{c+a^2 c x^2}}-\frac{\sqrt{c+a^2 c x^2} \tan ^{-1}(a x)}{3 c^2 x^3}+\frac{5 a^2 \sqrt{c+a^2 c x^2} \tan ^{-1}(a x)}{3 c^2 x}+\frac{a \operatorname{Subst}\left (\int \frac{1}{x^2 \sqrt{c+a^2 c x}} \, dx,x,x^2\right )}{6 c}-\frac{\left (2 a^3\right ) \int \frac{1}{x \sqrt{c+a^2 c x^2}} \, dx}{3 c}-\frac{a^3 \int \frac{1}{x \sqrt{c+a^2 c x^2}} \, dx}{c}\\ &=\frac{a^3}{c \sqrt{c+a^2 c x^2}}-\frac{a \sqrt{c+a^2 c x^2}}{6 c^2 x^2}+\frac{a^4 x \tan ^{-1}(a x)}{c \sqrt{c+a^2 c x^2}}-\frac{\sqrt{c+a^2 c x^2} \tan ^{-1}(a x)}{3 c^2 x^3}+\frac{5 a^2 \sqrt{c+a^2 c x^2} \tan ^{-1}(a x)}{3 c^2 x}-\frac{a^3 \operatorname{Subst}\left (\int \frac{1}{x \sqrt{c+a^2 c x}} \, dx,x,x^2\right )}{12 c}-\frac{a^3 \operatorname{Subst}\left (\int \frac{1}{x \sqrt{c+a^2 c x}} \, dx,x,x^2\right )}{3 c}-\frac{a^3 \operatorname{Subst}\left (\int \frac{1}{x \sqrt{c+a^2 c x}} \, dx,x,x^2\right )}{2 c}\\ &=\frac{a^3}{c \sqrt{c+a^2 c x^2}}-\frac{a \sqrt{c+a^2 c x^2}}{6 c^2 x^2}+\frac{a^4 x \tan ^{-1}(a x)}{c \sqrt{c+a^2 c x^2}}-\frac{\sqrt{c+a^2 c x^2} \tan ^{-1}(a x)}{3 c^2 x^3}+\frac{5 a^2 \sqrt{c+a^2 c x^2} \tan ^{-1}(a x)}{3 c^2 x}-\frac{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 )}{6 c^2}-\frac{(2 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 )}{3 c^2}-\frac{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^2}\\ &=\frac{a^3}{c \sqrt{c+a^2 c x^2}}-\frac{a \sqrt{c+a^2 c x^2}}{6 c^2 x^2}+\frac{a^4 x \tan ^{-1}(a x)}{c \sqrt{c+a^2 c x^2}}-\frac{\sqrt{c+a^2 c x^2} \tan ^{-1}(a x)}{3 c^2 x^3}+\frac{5 a^2 \sqrt{c+a^2 c x^2} \tan ^{-1}(a x)}{3 c^2 x}+\frac{11 a^3 \tanh ^{-1}\left (\frac{\sqrt{c+a^2 c x^2}}{\sqrt{c}}\right )}{6 c^{3/2}}\\ \end{align*}
Mathematica [A] time = 0.32687, size = 143, normalized size = 0.87 \[ \frac{\frac{a \left (5 a^2 x^2-1\right ) \sqrt{a^2 c x^2+c}}{a^2 x^4+x^2}+11 a^3 \sqrt{c} \log \left (\sqrt{c} \sqrt{a^2 c x^2+c}+c\right )+\frac{2 \left (8 a^4 x^4+4 a^2 x^2-1\right ) \sqrt{a^2 c x^2+c} \tan ^{-1}(a x)}{a^2 x^5+x^3}-11 a^3 \sqrt{c} \log (x)}{6 c^2} \]
Antiderivative was successfully verified.
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Maple [C] time = 0.655, size = 259, normalized size = 1.6 \begin{align*}{\frac{{a}^{3} \left ( \arctan \left ( ax \right ) +i \right ) \left ( ax-i \right ) }{ \left ( 2\,{a}^{2}{x}^{2}+2 \right ){c}^{2}}\sqrt{c \left ( ax-i \right ) \left ( ax+i \right ) }}+{\frac{ \left ( ax+i \right ) \left ( \arctan \left ( ax \right ) -i \right ){a}^{3}}{ \left ( 2\,{a}^{2}{x}^{2}+2 \right ){c}^{2}}\sqrt{c \left ( ax-i \right ) \left ( ax+i \right ) }}+{\frac{10\,\arctan \left ( ax \right ){a}^{2}{x}^{2}-ax-2\,\arctan \left ( ax \right ) }{6\,{c}^{2}{x}^{3}}\sqrt{c \left ( ax-i \right ) \left ( ax+i \right ) }}-{\frac{11\,{a}^{3}}{6\,{c}^{2}}\ln \left ({(1+iax){\frac{1}{\sqrt{{a}^{2}{x}^{2}+1}}}}-1 \right ) \sqrt{c \left ( ax-i \right ) \left ( ax+i \right ) }{\frac{1}{\sqrt{{a}^{2}{x}^{2}+1}}}}+{\frac{11\,{a}^{3}}{6\,{c}^{2}}\ln \left ( 1+{(1+iax){\frac{1}{\sqrt{{a}^{2}{x}^{2}+1}}}} \right ) \sqrt{c \left ( ax-i \right ) \left ( ax+i \right ) }{\frac{1}{\sqrt{{a}^{2}{x}^{2}+1}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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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.
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Fricas [A] time = 2.55897, size = 282, normalized size = 1.71 \begin{align*} \frac{11 \,{\left (a^{5} x^{5} + 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 (5 \, a^{3} x^{3} - a x + 2 \,{\left (8 \, a^{4} x^{4} + 4 \, a^{2} x^{2} - 1\right )} \arctan \left (a x\right )\right )} \sqrt{a^{2} c x^{2} + c}}{12 \,{\left (a^{2} c^{2} x^{5} + c^{2} x^{3}\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{\operatorname{atan}{\left (a x \right )}}{x^{4} \left (c \left (a^{2} x^{2} + 1\right )\right )^{\frac{3}{2}}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{\arctan \left (a x\right )}{{\left (a^{2} c x^{2} + c\right )}^{\frac{3}{2}} x^{4}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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