Optimal. Leaf size=190 \[ -\frac{c^3 \cosh \left (\frac{a}{b}\right ) \text{Chi}\left (\frac{a}{b}+\text{sech}^{-1}(c x)\right )}{4 b^2}-\frac{3 c^3 \cosh \left (\frac{3 a}{b}\right ) \text{Chi}\left (\frac{3 a}{b}+3 \text{sech}^{-1}(c x)\right )}{4 b^2}+\frac{c^3 \sinh \left (\frac{a}{b}\right ) \text{Shi}\left (\frac{a}{b}+\text{sech}^{-1}(c x)\right )}{4 b^2}+\frac{3 c^3 \sinh \left (\frac{3 a}{b}\right ) \text{Shi}\left (\frac{3 a}{b}+3 \text{sech}^{-1}(c x)\right )}{4 b^2}+\frac{c^2 \sqrt{\frac{1-c x}{c x+1}} (c x+1)}{4 b x \left (a+b \text{sech}^{-1}(c x)\right )}+\frac{c^3 \sinh \left (3 \text{sech}^{-1}(c x)\right )}{4 b \left (a+b \text{sech}^{-1}(c x)\right )} \]
[Out]
________________________________________________________________________________________
Rubi [A] time = 0.294862, antiderivative size = 190, normalized size of antiderivative = 1., number of steps used = 11, number of rules used = 6, integrand size = 14, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.429, Rules used = {6285, 5448, 3297, 3303, 3298, 3301} \[ -\frac{c^3 \cosh \left (\frac{a}{b}\right ) \text{Chi}\left (\frac{a}{b}+\text{sech}^{-1}(c x)\right )}{4 b^2}-\frac{3 c^3 \cosh \left (\frac{3 a}{b}\right ) \text{Chi}\left (\frac{3 a}{b}+3 \text{sech}^{-1}(c x)\right )}{4 b^2}+\frac{c^3 \sinh \left (\frac{a}{b}\right ) \text{Shi}\left (\frac{a}{b}+\text{sech}^{-1}(c x)\right )}{4 b^2}+\frac{3 c^3 \sinh \left (\frac{3 a}{b}\right ) \text{Shi}\left (\frac{3 a}{b}+3 \text{sech}^{-1}(c x)\right )}{4 b^2}+\frac{c^2 \sqrt{\frac{1-c x}{c x+1}} (c x+1)}{4 b x \left (a+b \text{sech}^{-1}(c x)\right )}+\frac{c^3 \sinh \left (3 \text{sech}^{-1}(c x)\right )}{4 b \left (a+b \text{sech}^{-1}(c x)\right )} \]
Antiderivative was successfully verified.
[In]
[Out]
Rule 6285
Rule 5448
Rule 3297
Rule 3303
Rule 3298
Rule 3301
Rubi steps
\begin{align*} \int \frac{1}{x^4 \left (a+b \text{sech}^{-1}(c x)\right )^2} \, dx &=-\left (c^3 \operatorname{Subst}\left (\int \frac{\cosh ^2(x) \sinh (x)}{(a+b x)^2} \, dx,x,\text{sech}^{-1}(c x)\right )\right )\\ &=-\left (c^3 \operatorname{Subst}\left (\int \left (\frac{\sinh (x)}{4 (a+b x)^2}+\frac{\sinh (3 x)}{4 (a+b x)^2}\right ) \, dx,x,\text{sech}^{-1}(c x)\right )\right )\\ &=-\left (\frac{1}{4} c^3 \operatorname{Subst}\left (\int \frac{\sinh (x)}{(a+b x)^2} \, dx,x,\text{sech}^{-1}(c x)\right )\right )-\frac{1}{4} c^3 \operatorname{Subst}\left (\int \frac{\sinh (3 x)}{(a+b x)^2} \, dx,x,\text{sech}^{-1}(c x)\right )\\ &=\frac{c^2 \sqrt{\frac{1-c x}{1+c x}} (1+c x)}{4 b x \left (a+b \text{sech}^{-1}(c x)\right )}+\frac{c^3 \sinh \left (3 \text{sech}^{-1}(c x)\right )}{4 b \left (a+b \text{sech}^{-1}(c x)\right )}-\frac{c^3 \operatorname{Subst}\left (\int \frac{\cosh (x)}{a+b x} \, dx,x,\text{sech}^{-1}(c x)\right )}{4 b}-\frac{\left (3 c^3\right ) \operatorname{Subst}\left (\int \frac{\cosh (3 x)}{a+b x} \, dx,x,\text{sech}^{-1}(c x)\right )}{4 b}\\ &=\frac{c^2 \sqrt{\frac{1-c x}{1+c x}} (1+c x)}{4 b x \left (a+b \text{sech}^{-1}(c x)\right )}+\frac{c^3 \sinh \left (3 \text{sech}^{-1}(c x)\right )}{4 b \left (a+b \text{sech}^{-1}(c x)\right )}-\frac{\left (c^3 \cosh \left (\frac{a}{b}\right )\right ) \operatorname{Subst}\left (\int \frac{\cosh \left (\frac{a}{b}+x\right )}{a+b x} \, dx,x,\text{sech}^{-1}(c x)\right )}{4 b}-\frac{\left (3 c^3 \cosh \left (\frac{3 a}{b}\right )\right ) \operatorname{Subst}\left (\int \frac{\cosh \left (\frac{3 a}{b}+3 x\right )}{a+b x} \, dx,x,\text{sech}^{-1}(c x)\right )}{4 b}+\frac{\left (c^3 \sinh \left (\frac{a}{b}\right )\right ) \operatorname{Subst}\left (\int \frac{\sinh \left (\frac{a}{b}+x\right )}{a+b x} \, dx,x,\text{sech}^{-1}(c x)\right )}{4 b}+\frac{\left (3 c^3 \sinh \left (\frac{3 a}{b}\right )\right ) \operatorname{Subst}\left (\int \frac{\sinh \left (\frac{3 a}{b}+3 x\right )}{a+b x} \, dx,x,\text{sech}^{-1}(c x)\right )}{4 b}\\ &=\frac{c^2 \sqrt{\frac{1-c x}{1+c x}} (1+c x)}{4 b x \left (a+b \text{sech}^{-1}(c x)\right )}-\frac{c^3 \cosh \left (\frac{a}{b}\right ) \text{Chi}\left (\frac{a}{b}+\text{sech}^{-1}(c x)\right )}{4 b^2}-\frac{3 c^3 \cosh \left (\frac{3 a}{b}\right ) \text{Chi}\left (\frac{3 a}{b}+3 \text{sech}^{-1}(c x)\right )}{4 b^2}+\frac{c^3 \sinh \left (3 \text{sech}^{-1}(c x)\right )}{4 b \left (a+b \text{sech}^{-1}(c x)\right )}+\frac{c^3 \sinh \left (\frac{a}{b}\right ) \text{Shi}\left (\frac{a}{b}+\text{sech}^{-1}(c x)\right )}{4 b^2}+\frac{3 c^3 \sinh \left (\frac{3 a}{b}\right ) \text{Shi}\left (\frac{3 a}{b}+3 \text{sech}^{-1}(c x)\right )}{4 b^2}\\ \end{align*}
Mathematica [A] time = 0.623285, size = 170, normalized size = 0.89 \[ \frac{c^3 \left (-\cosh \left (\frac{a}{b}\right )\right ) \text{Chi}\left (\frac{a}{b}+\text{sech}^{-1}(c x)\right )-3 c^3 \cosh \left (\frac{3 a}{b}\right ) \text{Chi}\left (3 \left (\frac{a}{b}+\text{sech}^{-1}(c x)\right )\right )+c^3 \sinh \left (\frac{a}{b}\right ) \text{Shi}\left (\frac{a}{b}+\text{sech}^{-1}(c x)\right )+3 c^3 \sinh \left (\frac{3 a}{b}\right ) \text{Shi}\left (3 \left (\frac{a}{b}+\text{sech}^{-1}(c x)\right )\right )+\frac{4 b c \sqrt{\frac{1-c x}{c x+1}}}{x^2 \left (a+b \text{sech}^{-1}(c x)\right )}+\frac{4 b \sqrt{\frac{1-c x}{c x+1}}}{x^3 \left (a+b \text{sech}^{-1}(c x)\right )}}{4 b^2} \]
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [B] time = 0.273, size = 420, normalized size = 2.2 \begin{align*}{c}^{3} \left ( -{\frac{1}{8\,{x}^{3}b{c}^{3} \left ( a+b{\rm arcsech} \left (cx\right ) \right ) } \left ( \sqrt{{\frac{cx+1}{cx}}}\sqrt{-{\frac{cx-1}{cx}}}{c}^{3}{x}^{3}-4\,\sqrt{-{\frac{cx-1}{cx}}}\sqrt{{\frac{cx+1}{cx}}}cx-3\,{c}^{2}{x}^{2}+4 \right ) }+{\frac{3}{8\,{b}^{2}}{{\rm e}^{3\,{\frac{a}{b}}}}{\it Ei} \left ( 1,3\,{\frac{a}{b}}+3\,{\rm arcsech} \left (cx\right ) \right ) }+{\frac{1}{8\,xbc \left ( a+b{\rm arcsech} \left (cx\right ) \right ) } \left ( \sqrt{-{\frac{cx-1}{cx}}}\sqrt{{\frac{cx+1}{cx}}}cx-1 \right ) }+{\frac{1}{8\,{b}^{2}}{{\rm e}^{{\frac{a}{b}}}}{\it Ei} \left ( 1,{\frac{a}{b}}+{\rm arcsech} \left (cx\right ) \right ) }+{\frac{1}{8\,xbc \left ( a+b{\rm arcsech} \left (cx\right ) \right ) } \left ( \sqrt{-{\frac{cx-1}{cx}}}\sqrt{{\frac{cx+1}{cx}}}cx+1 \right ) }+{\frac{1}{8\,{b}^{2}}{{\rm e}^{-{\frac{a}{b}}}}{\it Ei} \left ( 1,-{\rm arcsech} \left (cx\right )-{\frac{a}{b}} \right ) }-{\frac{1}{8\,{x}^{3}b{c}^{3} \left ( a+b{\rm arcsech} \left (cx\right ) \right ) } \left ( \sqrt{{\frac{cx+1}{cx}}}\sqrt{-{\frac{cx-1}{cx}}}{c}^{3}{x}^{3}-4\,\sqrt{-{\frac{cx-1}{cx}}}\sqrt{{\frac{cx+1}{cx}}}cx+3\,{c}^{2}{x}^{2}-4 \right ) }+{\frac{3}{8\,{b}^{2}}{{\rm e}^{-3\,{\frac{a}{b}}}}{\it Ei} \left ( 1,-3\,{\rm arcsech} \left (cx\right )-3\,{\frac{a}{b}} \right ) } \right ) \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*} -\frac{c^{2} x^{3} +{\left (c^{2} x^{3} - x\right )} \sqrt{c x + 1} \sqrt{-c x + 1} - x}{{\left (b^{2} c^{2} x^{2} - b^{2}\right )} x^{4} \log \left (x\right ) +{\left ({\left (b^{2} c^{2} \log \left (c\right ) - a b c^{2}\right )} x^{2} - b^{2} \log \left (c\right ) + a b\right )} x^{4} -{\left (b^{2} x^{4} \log \left (x\right ) +{\left (b^{2} \log \left (c\right ) - a b\right )} x^{4}\right )} \sqrt{c x + 1} \sqrt{-c x + 1} +{\left (\sqrt{c x + 1} \sqrt{-c x + 1} b^{2} x^{4} -{\left (b^{2} c^{2} x^{2} - b^{2}\right )} x^{4}\right )} \log \left (\sqrt{c x + 1} \sqrt{-c x + 1} + 1\right )} - \int \frac{3 \, c^{4} x^{4} - 6 \, c^{2} x^{2} +{\left (c^{2} x^{2} - 3\right )}{\left (c x + 1\right )}{\left (c x - 1\right )} +{\left (2 \, c^{4} x^{4} - 7 \, c^{2} x^{2} + 6\right )} \sqrt{c x + 1} \sqrt{-c x + 1} + 3}{{\left (b^{2} c^{4} x^{4} - 2 \, b^{2} c^{2} x^{2} + b^{2}\right )} x^{4} \log \left (x\right ) +{\left ({\left (b^{2} c^{4} \log \left (c\right ) - a b c^{4}\right )} x^{4} - 2 \,{\left (b^{2} c^{2} \log \left (c\right ) - a b c^{2}\right )} x^{2} + b^{2} \log \left (c\right ) - a b\right )} x^{4} -{\left (b^{2} x^{4} \log \left (x\right ) +{\left (b^{2} \log \left (c\right ) - a b\right )} x^{4}\right )}{\left (c x + 1\right )}{\left (c x - 1\right )} - 2 \,{\left ({\left (b^{2} c^{2} x^{2} - b^{2}\right )} x^{4} \log \left (x\right ) +{\left ({\left (b^{2} c^{2} \log \left (c\right ) - a b c^{2}\right )} x^{2} - b^{2} \log \left (c\right ) + a b\right )} x^{4}\right )} \sqrt{c x + 1} \sqrt{-c x + 1} +{\left ({\left (c x + 1\right )}{\left (c x - 1\right )} b^{2} x^{4} + 2 \,{\left (b^{2} c^{2} x^{2} - b^{2}\right )} \sqrt{c x + 1} \sqrt{-c x + 1} x^{4} -{\left (b^{2} c^{4} x^{4} - 2 \, b^{2} c^{2} x^{2} + b^{2}\right )} x^{4}\right )} \log \left (\sqrt{c x + 1} \sqrt{-c x + 1} + 1\right )}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Fricas [F] time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left (\frac{1}{b^{2} x^{4} \operatorname{arsech}\left (c x\right )^{2} + 2 \, a b x^{4} \operatorname{arsech}\left (c x\right ) + a^{2} x^{4}}, x\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{1}{x^{4} \left (a + b \operatorname{asech}{\left (c x \right )}\right )^{2}}\, 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*} \int \frac{1}{{\left (b \operatorname{arsech}\left (c x\right ) + a\right )}^{2} x^{4}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]