Optimal. Leaf size=104 \[ -\frac{\sqrt{a^2 x^2+1} \text{Si}\left (\tan ^{-1}(a x)\right )}{2 a^2 c \sqrt{a^2 c x^2+c}}-\frac{x}{2 a c \sqrt{a^2 c x^2+c} \tan ^{-1}(a x)^2}-\frac{1}{2 a^2 c \sqrt{a^2 c x^2+c} \tan ^{-1}(a x)} \]
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Rubi [A] time = 0.322079, antiderivative size = 104, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 5, integrand size = 22, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.227, Rules used = {4942, 4902, 4971, 4970, 3299} \[ -\frac{\sqrt{a^2 x^2+1} \text{Si}\left (\tan ^{-1}(a x)\right )}{2 a^2 c \sqrt{a^2 c x^2+c}}-\frac{x}{2 a c \sqrt{a^2 c x^2+c} \tan ^{-1}(a x)^2}-\frac{1}{2 a^2 c \sqrt{a^2 c x^2+c} \tan ^{-1}(a x)} \]
Antiderivative was successfully verified.
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Rule 4942
Rule 4902
Rule 4971
Rule 4970
Rule 3299
Rubi steps
\begin{align*} \int \frac{x}{\left (c+a^2 c x^2\right )^{3/2} \tan ^{-1}(a x)^3} \, dx &=-\frac{x}{2 a c \sqrt{c+a^2 c x^2} \tan ^{-1}(a x)^2}+\frac{\int \frac{1}{\left (c+a^2 c x^2\right )^{3/2} \tan ^{-1}(a x)^2} \, dx}{2 a}\\ &=-\frac{x}{2 a c \sqrt{c+a^2 c x^2} \tan ^{-1}(a x)^2}-\frac{1}{2 a^2 c \sqrt{c+a^2 c x^2} \tan ^{-1}(a x)}-\frac{1}{2} \int \frac{x}{\left (c+a^2 c x^2\right )^{3/2} \tan ^{-1}(a x)} \, dx\\ &=-\frac{x}{2 a c \sqrt{c+a^2 c x^2} \tan ^{-1}(a x)^2}-\frac{1}{2 a^2 c \sqrt{c+a^2 c x^2} \tan ^{-1}(a x)}-\frac{\sqrt{1+a^2 x^2} \int \frac{x}{\left (1+a^2 x^2\right )^{3/2} \tan ^{-1}(a x)} \, dx}{2 c \sqrt{c+a^2 c x^2}}\\ &=-\frac{x}{2 a c \sqrt{c+a^2 c x^2} \tan ^{-1}(a x)^2}-\frac{1}{2 a^2 c \sqrt{c+a^2 c x^2} \tan ^{-1}(a x)}-\frac{\sqrt{1+a^2 x^2} \operatorname{Subst}\left (\int \frac{\sin (x)}{x} \, dx,x,\tan ^{-1}(a x)\right )}{2 a^2 c \sqrt{c+a^2 c x^2}}\\ &=-\frac{x}{2 a c \sqrt{c+a^2 c x^2} \tan ^{-1}(a x)^2}-\frac{1}{2 a^2 c \sqrt{c+a^2 c x^2} \tan ^{-1}(a x)}-\frac{\sqrt{1+a^2 x^2} \text{Si}\left (\tan ^{-1}(a x)\right )}{2 a^2 c \sqrt{c+a^2 c x^2}}\\ \end{align*}
Mathematica [A] time = 0.129822, size = 63, normalized size = 0.61 \[ -\frac{\sqrt{a^2 x^2+1} \tan ^{-1}(a x)^2 \text{Si}\left (\tan ^{-1}(a x)\right )+a x+\tan ^{-1}(a x)}{2 a^2 c \sqrt{a^2 c x^2+c} \tan ^{-1}(a x)^2} \]
Antiderivative was successfully verified.
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Maple [C] time = 0.331, size = 294, normalized size = 2.8 \begin{align*}{\frac{-{\frac{i}{4}}}{{c}^{2} \left ( \arctan \left ( ax \right ) \right ) ^{2}{a}^{2}} \left ( \left ( \arctan \left ( ax \right ) \right ) ^{2}{\it Ei} \left ( 1,-i\arctan \left ( ax \right ) \right ){x}^{2}{a}^{2}+\arctan \left ( ax \right ) \sqrt{{a}^{2}{x}^{2}+1}xa+{\it Ei} \left ( 1,-i\arctan \left ( ax \right ) \right ) \left ( \arctan \left ( ax \right ) \right ) ^{2}-i\sqrt{{a}^{2}{x}^{2}+1}xa-i\arctan \left ( ax \right ) \sqrt{{a}^{2}{x}^{2}+1}-\sqrt{{a}^{2}{x}^{2}+1} \right ) \sqrt{c \left ( ax-i \right ) \left ( ax+i \right ) } \left ({a}^{2}{x}^{2}+1 \right ) ^{-{\frac{3}{2}}}}+{\frac{{\frac{i}{4}}}{{c}^{2} \left ( \arctan \left ( ax \right ) \right ) ^{2}{a}^{2}} \left ( \left ( \arctan \left ( ax \right ) \right ) ^{2}{\it Ei} \left ( 1,i\arctan \left ( ax \right ) \right ){x}^{2}{a}^{2}+\arctan \left ( ax \right ) \sqrt{{a}^{2}{x}^{2}+1}xa+i\sqrt{{a}^{2}{x}^{2}+1}xa+{\it Ei} \left ( 1,i\arctan \left ( ax \right ) \right ) \left ( \arctan \left ( ax \right ) \right ) ^{2}+i\arctan \left ( ax \right ) \sqrt{{a}^{2}{x}^{2}+1}-\sqrt{{a}^{2}{x}^{2}+1} \right ) \sqrt{c \left ( ax-i \right ) \left ( ax+i \right ) } \left ({a}^{2}{x}^{2}+1 \right ) ^{-{\frac{3}{2}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{x}{{\left (a^{2} c x^{2} + c\right )}^{\frac{3}{2}} \arctan \left (a x\right )^{3}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F] time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left (\frac{\sqrt{a^{2} c x^{2} + c} x}{{\left (a^{4} c^{2} x^{4} + 2 \, a^{2} c^{2} x^{2} + c^{2}\right )} \arctan \left (a x\right )^{3}}, x\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{x}{\left (c \left (a^{2} x^{2} + 1\right )\right )^{\frac{3}{2}} \operatorname{atan}^{3}{\left (a x \right )}}\, 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{x}{{\left (a^{2} c x^{2} + c\right )}^{\frac{3}{2}} \arctan \left (a x\right )^{3}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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