Optimal. Leaf size=213 \[ -\frac{4 b^2 c^2 \left (a+b \text{sech}^{-1}(c x)\right )}{3 x}-\frac{2 b^2 \left (a+b \text{sech}^{-1}(c x)\right )}{9 x^3}+\frac{2 b c^2 \sqrt{\frac{1-c x}{c x+1}} (c x+1) \left (a+b \text{sech}^{-1}(c x)\right )^2}{3 x}+\frac{b \sqrt{\frac{1-c x}{c x+1}} (c x+1) \left (a+b \text{sech}^{-1}(c x)\right )^2}{3 x^3}-\frac{\left (a+b \text{sech}^{-1}(c x)\right )^3}{3 x^3}+\frac{14 b^3 c^2 \sqrt{\frac{1-c x}{c x+1}} (c x+1)}{9 x}+\frac{2 b^3 \left (\frac{1-c x}{c x+1}\right )^{3/2} (c x+1)^3}{27 x^3} \]
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Rubi [A] time = 0.166402, antiderivative size = 213, normalized size of antiderivative = 1., number of steps used = 8, number of rules used = 6, integrand size = 14, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.429, Rules used = {6285, 5447, 3311, 3296, 2637, 2633} \[ -\frac{4 b^2 c^2 \left (a+b \text{sech}^{-1}(c x)\right )}{3 x}-\frac{2 b^2 \left (a+b \text{sech}^{-1}(c x)\right )}{9 x^3}+\frac{2 b c^2 \sqrt{\frac{1-c x}{c x+1}} (c x+1) \left (a+b \text{sech}^{-1}(c x)\right )^2}{3 x}+\frac{b \sqrt{\frac{1-c x}{c x+1}} (c x+1) \left (a+b \text{sech}^{-1}(c x)\right )^2}{3 x^3}-\frac{\left (a+b \text{sech}^{-1}(c x)\right )^3}{3 x^3}+\frac{14 b^3 c^2 \sqrt{\frac{1-c x}{c x+1}} (c x+1)}{9 x}+\frac{2 b^3 \left (\frac{1-c x}{c x+1}\right )^{3/2} (c x+1)^3}{27 x^3} \]
Antiderivative was successfully verified.
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Rule 6285
Rule 5447
Rule 3311
Rule 3296
Rule 2637
Rule 2633
Rubi steps
\begin{align*} \int \frac{\left (a+b \text{sech}^{-1}(c x)\right )^3}{x^4} \, dx &=-\left (c^3 \operatorname{Subst}\left (\int (a+b x)^3 \cosh ^2(x) \sinh (x) \, dx,x,\text{sech}^{-1}(c x)\right )\right )\\ &=-\frac{\left (a+b \text{sech}^{-1}(c x)\right )^3}{3 x^3}+\left (b c^3\right ) \operatorname{Subst}\left (\int (a+b x)^2 \cosh ^3(x) \, dx,x,\text{sech}^{-1}(c x)\right )\\ &=-\frac{2 b^2 \left (a+b \text{sech}^{-1}(c x)\right )}{9 x^3}+\frac{b \sqrt{\frac{1-c x}{1+c x}} (1+c x) \left (a+b \text{sech}^{-1}(c x)\right )^2}{3 x^3}-\frac{\left (a+b \text{sech}^{-1}(c x)\right )^3}{3 x^3}+\frac{1}{3} \left (2 b c^3\right ) \operatorname{Subst}\left (\int (a+b x)^2 \cosh (x) \, dx,x,\text{sech}^{-1}(c x)\right )+\frac{1}{9} \left (2 b^3 c^3\right ) \operatorname{Subst}\left (\int \cosh ^3(x) \, dx,x,\text{sech}^{-1}(c x)\right )\\ &=-\frac{2 b^2 \left (a+b \text{sech}^{-1}(c x)\right )}{9 x^3}+\frac{b \sqrt{\frac{1-c x}{1+c x}} (1+c x) \left (a+b \text{sech}^{-1}(c x)\right )^2}{3 x^3}+\frac{2 b c^2 \sqrt{\frac{1-c x}{1+c x}} (1+c x) \left (a+b \text{sech}^{-1}(c x)\right )^2}{3 x}-\frac{\left (a+b \text{sech}^{-1}(c x)\right )^3}{3 x^3}-\frac{1}{3} \left (4 b^2 c^3\right ) \operatorname{Subst}\left (\int (a+b x) \sinh (x) \, dx,x,\text{sech}^{-1}(c x)\right )+\frac{1}{9} \left (2 i b^3 c^3\right ) \operatorname{Subst}\left (\int \left (1-x^2\right ) \, dx,x,-\frac{i \sqrt{\frac{1-c x}{1+c x}} (1+c x)}{c x}\right )\\ &=\frac{2 b^3 c^2 \sqrt{\frac{1-c x}{1+c x}} (1+c x)}{9 x}+\frac{2 b^3 \left (\frac{1-c x}{1+c x}\right )^{3/2} (1+c x)^3}{27 x^3}-\frac{2 b^2 \left (a+b \text{sech}^{-1}(c x)\right )}{9 x^3}-\frac{4 b^2 c^2 \left (a+b \text{sech}^{-1}(c x)\right )}{3 x}+\frac{b \sqrt{\frac{1-c x}{1+c x}} (1+c x) \left (a+b \text{sech}^{-1}(c x)\right )^2}{3 x^3}+\frac{2 b c^2 \sqrt{\frac{1-c x}{1+c x}} (1+c x) \left (a+b \text{sech}^{-1}(c x)\right )^2}{3 x}-\frac{\left (a+b \text{sech}^{-1}(c x)\right )^3}{3 x^3}+\frac{1}{3} \left (4 b^3 c^3\right ) \operatorname{Subst}\left (\int \cosh (x) \, dx,x,\text{sech}^{-1}(c x)\right )\\ &=\frac{14 b^3 c^2 \sqrt{\frac{1-c x}{1+c x}} (1+c x)}{9 x}+\frac{2 b^3 \left (\frac{1-c x}{1+c x}\right )^{3/2} (1+c x)^3}{27 x^3}-\frac{2 b^2 \left (a+b \text{sech}^{-1}(c x)\right )}{9 x^3}-\frac{4 b^2 c^2 \left (a+b \text{sech}^{-1}(c x)\right )}{3 x}+\frac{b \sqrt{\frac{1-c x}{1+c x}} (1+c x) \left (a+b \text{sech}^{-1}(c x)\right )^2}{3 x^3}+\frac{2 b c^2 \sqrt{\frac{1-c x}{1+c x}} (1+c x) \left (a+b \text{sech}^{-1}(c x)\right )^2}{3 x}-\frac{\left (a+b \text{sech}^{-1}(c x)\right )^3}{3 x^3}\\ \end{align*}
Mathematica [A] time = 0.382663, size = 256, normalized size = 1.2 \[ \frac{-3 b \text{sech}^{-1}(c x) \left (9 a^2-6 a b \sqrt{\frac{1-c x}{c x+1}} \left (2 c^3 x^3+2 c^2 x^2+c x+1\right )+2 b^2 \left (6 c^2 x^2+1\right )\right )+9 a^2 b \sqrt{\frac{1-c x}{c x+1}} \left (2 c^3 x^3+2 c^2 x^2+c x+1\right )-9 a^3-6 a b^2 \left (6 c^2 x^2+1\right )+9 b^2 \text{sech}^{-1}(c x)^2 \left (b \sqrt{\frac{1-c x}{c x+1}} \left (2 c^3 x^3+2 c^2 x^2+c x+1\right )-3 a\right )+2 b^3 \sqrt{\frac{1-c x}{c x+1}} \left (20 c^3 x^3+20 c^2 x^2+c x+1\right )-9 b^3 \text{sech}^{-1}(c x)^3}{27 x^3} \]
Antiderivative was successfully verified.
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Maple [B] time = 0.274, size = 455, normalized size = 2.1 \begin{align*}{c}^{3} \left ( -{\frac{{a}^{3}}{3\,{c}^{3}{x}^{3}}}+{b}^{3} \left ({\frac{ \left ({\rm arcsech} \left (cx\right ) \right ) ^{3} \left ( cx-1 \right ) \left ( cx+1 \right ) }{3\,{c}^{3}{x}^{3}}}-{\frac{ \left ({\rm arcsech} \left (cx\right ) \right ) ^{3}}{3\,cx}}+{\frac{ \left ({\rm arcsech} \left (cx\right ) \right ) ^{2}}{3\,{c}^{2}{x}^{2}}\sqrt{-{\frac{cx-1}{cx}}}\sqrt{{\frac{cx+1}{cx}}}}+{\frac{2\, \left ({\rm arcsech} \left (cx\right ) \right ) ^{2}}{3}\sqrt{-{\frac{cx-1}{cx}}}\sqrt{{\frac{cx+1}{cx}}}}+{\frac{2\,{\rm arcsech} \left (cx\right ) \left ( cx-1 \right ) \left ( cx+1 \right ) }{9\,{c}^{3}{x}^{3}}}-{\frac{14\,{\rm arcsech} \left (cx\right )}{9\,cx}}+{\frac{2}{27\,{c}^{2}{x}^{2}}\sqrt{-{\frac{cx-1}{cx}}}\sqrt{{\frac{cx+1}{cx}}}}+{\frac{40}{27}\sqrt{-{\frac{cx-1}{cx}}}\sqrt{{\frac{cx+1}{cx}}}} \right ) +3\,a{b}^{2} \left ( 1/3\,{\frac{ \left ({\rm arcsech} \left (cx\right ) \right ) ^{2} \left ( cx-1 \right ) \left ( cx+1 \right ) }{{c}^{3}{x}^{3}}}-1/3\,{\frac{ \left ({\rm arcsech} \left (cx\right ) \right ) ^{2}}{cx}}+2/9\,{\frac{{\rm arcsech} \left (cx\right )}{{c}^{2}{x}^{2}}\sqrt{-{\frac{cx-1}{cx}}}\sqrt{{\frac{cx+1}{cx}}}}+4/9\,{\rm arcsech} \left (cx\right )\sqrt{-{\frac{cx-1}{cx}}}\sqrt{{\frac{cx+1}{cx}}}+{\frac{ \left ( 2\,cx-2 \right ) \left ( cx+1 \right ) }{27\,{c}^{3}{x}^{3}}}-{\frac{14}{27\,cx}} \right ) +3\,{a}^{2}b \left ( -1/3\,{\frac{{\rm arcsech} \left (cx\right )}{{c}^{3}{x}^{3}}}+1/9\,{\frac{2\,{c}^{2}{x}^{2}+1}{{c}^{2}{x}^{2}}\sqrt{-{\frac{cx-1}{cx}}}\sqrt{{\frac{cx+1}{cx}}}} \right ) \right ) \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*} \frac{1}{3} \, a^{2} b{\left (\frac{c^{4}{\left (\frac{1}{c^{2} x^{2}} - 1\right )}^{\frac{3}{2}} + 3 \, c^{4} \sqrt{\frac{1}{c^{2} x^{2}} - 1}}{c} - \frac{3 \, \operatorname{arsech}\left (c x\right )}{x^{3}}\right )} - \frac{a^{3}}{3 \, x^{3}} + \int \frac{b^{3} \log \left (\sqrt{\frac{1}{c x} + 1} \sqrt{\frac{1}{c x} - 1} + \frac{1}{c x}\right )^{3}}{x^{4}} + \frac{3 \, a b^{2} \log \left (\sqrt{\frac{1}{c x} + 1} \sqrt{\frac{1}{c x} - 1} + \frac{1}{c x}\right )^{2}}{x^{4}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.78489, size = 649, normalized size = 3.05 \begin{align*} -\frac{36 \, a b^{2} c^{2} x^{2} + 9 \, b^{3} \log \left (\frac{c x \sqrt{-\frac{c^{2} x^{2} - 1}{c^{2} x^{2}}} + 1}{c x}\right )^{3} + 9 \, a^{3} + 6 \, a b^{2} + 9 \,{\left (3 \, a b^{2} -{\left (2 \, b^{3} c^{3} x^{3} + b^{3} c x\right )} \sqrt{-\frac{c^{2} x^{2} - 1}{c^{2} x^{2}}}\right )} \log \left (\frac{c x \sqrt{-\frac{c^{2} x^{2} - 1}{c^{2} x^{2}}} + 1}{c x}\right )^{2} + 3 \,{\left (12 \, b^{3} c^{2} x^{2} + 9 \, a^{2} b + 2 \, b^{3} - 6 \,{\left (2 \, a b^{2} c^{3} x^{3} + a b^{2} c x\right )} \sqrt{-\frac{c^{2} x^{2} - 1}{c^{2} x^{2}}}\right )} \log \left (\frac{c x \sqrt{-\frac{c^{2} x^{2} - 1}{c^{2} x^{2}}} + 1}{c x}\right ) -{\left (2 \,{\left (9 \, a^{2} b + 20 \, b^{3}\right )} c^{3} x^{3} +{\left (9 \, a^{2} b + 2 \, b^{3}\right )} c x\right )} \sqrt{-\frac{c^{2} x^{2} - 1}{c^{2} x^{2}}}}{27 \, x^{3}} \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{\left (a + b \operatorname{asech}{\left (c x \right )}\right )^{3}}{x^{4}}\, 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{{\left (b \operatorname{arsech}\left (c x\right ) + a\right )}^{3}}{x^{4}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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