Optimal. Leaf size=178 \[ \frac{c^3 \cos \left (\frac{a}{b}\right ) \text{CosIntegral}\left (\frac{a}{b}+\sec ^{-1}(c x)\right )}{4 b^2}+\frac{3 c^3 \cos \left (\frac{3 a}{b}\right ) \text{CosIntegral}\left (\frac{3 a}{b}+3 \sec ^{-1}(c x)\right )}{4 b^2}+\frac{c^3 \sin \left (\frac{a}{b}\right ) \text{Si}\left (\frac{a}{b}+\sec ^{-1}(c x)\right )}{4 b^2}+\frac{3 c^3 \sin \left (\frac{3 a}{b}\right ) \text{Si}\left (\frac{3 a}{b}+3 \sec ^{-1}(c x)\right )}{4 b^2}-\frac{c^3 \sqrt{1-\frac{1}{c^2 x^2}}}{4 b \left (a+b \sec ^{-1}(c x)\right )}-\frac{c^3 \sin \left (3 \sec ^{-1}(c x)\right )}{4 b \left (a+b \sec ^{-1}(c x)\right )} \]
[Out]
________________________________________________________________________________________
Rubi [A] time = 0.266526, antiderivative size = 178, 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 = {5222, 4406, 3297, 3303, 3299, 3302} \[ \frac{c^3 \cos \left (\frac{a}{b}\right ) \text{CosIntegral}\left (\frac{a}{b}+\sec ^{-1}(c x)\right )}{4 b^2}+\frac{3 c^3 \cos \left (\frac{3 a}{b}\right ) \text{CosIntegral}\left (\frac{3 a}{b}+3 \sec ^{-1}(c x)\right )}{4 b^2}+\frac{c^3 \sin \left (\frac{a}{b}\right ) \text{Si}\left (\frac{a}{b}+\sec ^{-1}(c x)\right )}{4 b^2}+\frac{3 c^3 \sin \left (\frac{3 a}{b}\right ) \text{Si}\left (\frac{3 a}{b}+3 \sec ^{-1}(c x)\right )}{4 b^2}-\frac{c^3 \sqrt{1-\frac{1}{c^2 x^2}}}{4 b \left (a+b \sec ^{-1}(c x)\right )}-\frac{c^3 \sin \left (3 \sec ^{-1}(c x)\right )}{4 b \left (a+b \sec ^{-1}(c x)\right )} \]
Antiderivative was successfully verified.
[In]
[Out]
Rule 5222
Rule 4406
Rule 3297
Rule 3303
Rule 3299
Rule 3302
Rubi steps
\begin{align*} \int \frac{1}{x^4 \left (a+b \sec ^{-1}(c x)\right )^2} \, dx &=c^3 \operatorname{Subst}\left (\int \frac{\cos ^2(x) \sin (x)}{(a+b x)^2} \, dx,x,\sec ^{-1}(c x)\right )\\ &=c^3 \operatorname{Subst}\left (\int \left (\frac{\sin (x)}{4 (a+b x)^2}+\frac{\sin (3 x)}{4 (a+b x)^2}\right ) \, dx,x,\sec ^{-1}(c x)\right )\\ &=\frac{1}{4} c^3 \operatorname{Subst}\left (\int \frac{\sin (x)}{(a+b x)^2} \, dx,x,\sec ^{-1}(c x)\right )+\frac{1}{4} c^3 \operatorname{Subst}\left (\int \frac{\sin (3 x)}{(a+b x)^2} \, dx,x,\sec ^{-1}(c x)\right )\\ &=-\frac{c^3 \sqrt{1-\frac{1}{c^2 x^2}}}{4 b \left (a+b \sec ^{-1}(c x)\right )}-\frac{c^3 \sin \left (3 \sec ^{-1}(c x)\right )}{4 b \left (a+b \sec ^{-1}(c x)\right )}+\frac{c^3 \operatorname{Subst}\left (\int \frac{\cos (x)}{a+b x} \, dx,x,\sec ^{-1}(c x)\right )}{4 b}+\frac{\left (3 c^3\right ) \operatorname{Subst}\left (\int \frac{\cos (3 x)}{a+b x} \, dx,x,\sec ^{-1}(c x)\right )}{4 b}\\ &=-\frac{c^3 \sqrt{1-\frac{1}{c^2 x^2}}}{4 b \left (a+b \sec ^{-1}(c x)\right )}-\frac{c^3 \sin \left (3 \sec ^{-1}(c x)\right )}{4 b \left (a+b \sec ^{-1}(c x)\right )}+\frac{\left (c^3 \cos \left (\frac{a}{b}\right )\right ) \operatorname{Subst}\left (\int \frac{\cos \left (\frac{a}{b}+x\right )}{a+b x} \, dx,x,\sec ^{-1}(c x)\right )}{4 b}+\frac{\left (3 c^3 \cos \left (\frac{3 a}{b}\right )\right ) \operatorname{Subst}\left (\int \frac{\cos \left (\frac{3 a}{b}+3 x\right )}{a+b x} \, dx,x,\sec ^{-1}(c x)\right )}{4 b}+\frac{\left (c^3 \sin \left (\frac{a}{b}\right )\right ) \operatorname{Subst}\left (\int \frac{\sin \left (\frac{a}{b}+x\right )}{a+b x} \, dx,x,\sec ^{-1}(c x)\right )}{4 b}+\frac{\left (3 c^3 \sin \left (\frac{3 a}{b}\right )\right ) \operatorname{Subst}\left (\int \frac{\sin \left (\frac{3 a}{b}+3 x\right )}{a+b x} \, dx,x,\sec ^{-1}(c x)\right )}{4 b}\\ &=-\frac{c^3 \sqrt{1-\frac{1}{c^2 x^2}}}{4 b \left (a+b \sec ^{-1}(c x)\right )}+\frac{c^3 \cos \left (\frac{a}{b}\right ) \text{Ci}\left (\frac{a}{b}+\sec ^{-1}(c x)\right )}{4 b^2}+\frac{3 c^3 \cos \left (\frac{3 a}{b}\right ) \text{Ci}\left (\frac{3 a}{b}+3 \sec ^{-1}(c x)\right )}{4 b^2}-\frac{c^3 \sin \left (3 \sec ^{-1}(c x)\right )}{4 b \left (a+b \sec ^{-1}(c x)\right )}+\frac{c^3 \sin \left (\frac{a}{b}\right ) \text{Si}\left (\frac{a}{b}+\sec ^{-1}(c x)\right )}{4 b^2}+\frac{3 c^3 \sin \left (\frac{3 a}{b}\right ) \text{Si}\left (\frac{3 a}{b}+3 \sec ^{-1}(c x)\right )}{4 b^2}\\ \end{align*}
Mathematica [A] time = 0.445924, size = 223, normalized size = 1.25 \[ \frac{c^3 x^2 \cos \left (\frac{a}{b}\right ) \left (a+b \sec ^{-1}(c x)\right ) \text{CosIntegral}\left (\frac{a}{b}+\sec ^{-1}(c x)\right )+3 c^3 x^2 \cos \left (\frac{3 a}{b}\right ) \left (a+b \sec ^{-1}(c x)\right ) \text{CosIntegral}\left (3 \left (\frac{a}{b}+\sec ^{-1}(c x)\right )\right )+a c^3 x^2 \sin \left (\frac{a}{b}\right ) \text{Si}\left (\frac{a}{b}+\sec ^{-1}(c x)\right )+b c^3 x^2 \sin \left (\frac{a}{b}\right ) \sec ^{-1}(c x) \text{Si}\left (\frac{a}{b}+\sec ^{-1}(c x)\right )+3 a c^3 x^2 \sin \left (\frac{3 a}{b}\right ) \text{Si}\left (3 \left (\frac{a}{b}+\sec ^{-1}(c x)\right )\right )+3 b c^3 x^2 \sin \left (\frac{3 a}{b}\right ) \sec ^{-1}(c x) \text{Si}\left (3 \left (\frac{a}{b}+\sec ^{-1}(c x)\right )\right )-4 b c \sqrt{1-\frac{1}{c^2 x^2}}}{4 b^2 x^2 \left (a+b \sec ^{-1}(c x)\right )} \]
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [A] time = 0.247, size = 153, normalized size = 0.9 \begin{align*}{c}^{3} \left ( -{\frac{\sin \left ( 3\,{\rm arcsec} \left (cx\right ) \right ) }{ \left ( 4\,a+4\,b{\rm arcsec} \left (cx\right ) \right ) b}}+{\frac{3}{4\,{b}^{2}} \left ({\it Si} \left ( 3\,{\frac{a}{b}}+3\,{\rm arcsec} \left (cx\right ) \right ) \sin \left ( 3\,{\frac{a}{b}} \right ) +{\it Ci} \left ( 3\,{\frac{a}{b}}+3\,{\rm arcsec} \left (cx\right ) \right ) \cos \left ( 3\,{\frac{a}{b}} \right ) \right ) }-{\frac{1}{ \left ( 4\,a+4\,b{\rm arcsec} \left (cx\right ) \right ) b}\sqrt{{\frac{{c}^{2}{x}^{2}-1}{{c}^{2}{x}^{2}}}}}+{\frac{1}{4\,{b}^{2}} \left ({\it Si} \left ({\frac{a}{b}}+{\rm arcsec} \left (cx\right ) \right ) \sin \left ({\frac{a}{b}} \right ) +{\it Ci} \left ({\frac{a}{b}}+{\rm arcsec} \left (cx\right ) \right ) \cos \left ({\frac{a}{b}} \right ) \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*} \text{result too large to display} \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{arcsec}\left (c x\right )^{2} + 2 \, a b x^{4} \operatorname{arcsec}\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{asec}{\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{arcsec}\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]