Optimal. Leaf size=197 \[ -\frac{\sin \left (\frac{a}{b}\right ) \text{CosIntegral}\left (\frac{a+b \cos ^{-1}(c x)}{b}\right )}{8 b^3 c^3}-\frac{9 \sin \left (\frac{3 a}{b}\right ) \text{CosIntegral}\left (\frac{3 \left (a+b \cos ^{-1}(c x)\right )}{b}\right )}{8 b^3 c^3}+\frac{\cos \left (\frac{a}{b}\right ) \text{Si}\left (\frac{a+b \cos ^{-1}(c x)}{b}\right )}{8 b^3 c^3}+\frac{9 \cos \left (\frac{3 a}{b}\right ) \text{Si}\left (\frac{3 \left (a+b \cos ^{-1}(c x)\right )}{b}\right )}{8 b^3 c^3}-\frac{x}{b^2 c^2 \left (a+b \cos ^{-1}(c x)\right )}+\frac{3 x^3}{2 b^2 \left (a+b \cos ^{-1}(c x)\right )}+\frac{x^2 \sqrt{1-c^2 x^2}}{2 b c \left (a+b \cos ^{-1}(c x)\right )^2} \]
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Rubi [A] time = 0.534519, antiderivative size = 246, normalized size of antiderivative = 1.25, number of steps used = 16, number of rules used = 8, integrand size = 14, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.571, Rules used = {4634, 4720, 4636, 4406, 3303, 3299, 3302, 4624} \[ -\frac{9 \sin \left (\frac{a}{b}\right ) \text{CosIntegral}\left (\frac{a}{b}+\cos ^{-1}(c x)\right )}{8 b^3 c^3}+\frac{\sin \left (\frac{a}{b}\right ) \text{CosIntegral}\left (\frac{a+b \cos ^{-1}(c x)}{b}\right )}{b^3 c^3}-\frac{9 \sin \left (\frac{3 a}{b}\right ) \text{CosIntegral}\left (\frac{3 a}{b}+3 \cos ^{-1}(c x)\right )}{8 b^3 c^3}+\frac{9 \cos \left (\frac{a}{b}\right ) \text{Si}\left (\frac{a}{b}+\cos ^{-1}(c x)\right )}{8 b^3 c^3}+\frac{9 \cos \left (\frac{3 a}{b}\right ) \text{Si}\left (\frac{3 a}{b}+3 \cos ^{-1}(c x)\right )}{8 b^3 c^3}-\frac{\cos \left (\frac{a}{b}\right ) \text{Si}\left (\frac{a+b \cos ^{-1}(c x)}{b}\right )}{b^3 c^3}-\frac{x}{b^2 c^2 \left (a+b \cos ^{-1}(c x)\right )}+\frac{3 x^3}{2 b^2 \left (a+b \cos ^{-1}(c x)\right )}+\frac{x^2 \sqrt{1-c^2 x^2}}{2 b c \left (a+b \cos ^{-1}(c x)\right )^2} \]
Antiderivative was successfully verified.
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Rule 4634
Rule 4720
Rule 4636
Rule 4406
Rule 3303
Rule 3299
Rule 3302
Rule 4624
Rubi steps
\begin{align*} \int \frac{x^2}{\left (a+b \cos ^{-1}(c x)\right )^3} \, dx &=\frac{x^2 \sqrt{1-c^2 x^2}}{2 b c \left (a+b \cos ^{-1}(c x)\right )^2}-\frac{\int \frac{x}{\sqrt{1-c^2 x^2} \left (a+b \cos ^{-1}(c x)\right )^2} \, dx}{b c}+\frac{(3 c) \int \frac{x^3}{\sqrt{1-c^2 x^2} \left (a+b \cos ^{-1}(c x)\right )^2} \, dx}{2 b}\\ &=\frac{x^2 \sqrt{1-c^2 x^2}}{2 b c \left (a+b \cos ^{-1}(c x)\right )^2}-\frac{x}{b^2 c^2 \left (a+b \cos ^{-1}(c x)\right )}+\frac{3 x^3}{2 b^2 \left (a+b \cos ^{-1}(c x)\right )}-\frac{9 \int \frac{x^2}{a+b \cos ^{-1}(c x)} \, dx}{2 b^2}+\frac{\int \frac{1}{a+b \cos ^{-1}(c x)} \, dx}{b^2 c^2}\\ &=\frac{x^2 \sqrt{1-c^2 x^2}}{2 b c \left (a+b \cos ^{-1}(c x)\right )^2}-\frac{x}{b^2 c^2 \left (a+b \cos ^{-1}(c x)\right )}+\frac{3 x^3}{2 b^2 \left (a+b \cos ^{-1}(c x)\right )}+\frac{\operatorname{Subst}\left (\int \frac{\sin \left (\frac{a}{b}-\frac{x}{b}\right )}{x} \, dx,x,a+b \cos ^{-1}(c x)\right )}{b^3 c^3}+\frac{9 \operatorname{Subst}\left (\int \frac{\cos ^2(x) \sin (x)}{a+b x} \, dx,x,\cos ^{-1}(c x)\right )}{2 b^2 c^3}\\ &=\frac{x^2 \sqrt{1-c^2 x^2}}{2 b c \left (a+b \cos ^{-1}(c x)\right )^2}-\frac{x}{b^2 c^2 \left (a+b \cos ^{-1}(c x)\right )}+\frac{3 x^3}{2 b^2 \left (a+b \cos ^{-1}(c x)\right )}+\frac{9 \operatorname{Subst}\left (\int \left (\frac{\sin (x)}{4 (a+b x)}+\frac{\sin (3 x)}{4 (a+b x)}\right ) \, dx,x,\cos ^{-1}(c x)\right )}{2 b^2 c^3}-\frac{\cos \left (\frac{a}{b}\right ) \operatorname{Subst}\left (\int \frac{\sin \left (\frac{x}{b}\right )}{x} \, dx,x,a+b \cos ^{-1}(c x)\right )}{b^3 c^3}+\frac{\sin \left (\frac{a}{b}\right ) \operatorname{Subst}\left (\int \frac{\cos \left (\frac{x}{b}\right )}{x} \, dx,x,a+b \cos ^{-1}(c x)\right )}{b^3 c^3}\\ &=\frac{x^2 \sqrt{1-c^2 x^2}}{2 b c \left (a+b \cos ^{-1}(c x)\right )^2}-\frac{x}{b^2 c^2 \left (a+b \cos ^{-1}(c x)\right )}+\frac{3 x^3}{2 b^2 \left (a+b \cos ^{-1}(c x)\right )}+\frac{\text{Ci}\left (\frac{a+b \cos ^{-1}(c x)}{b}\right ) \sin \left (\frac{a}{b}\right )}{b^3 c^3}-\frac{\cos \left (\frac{a}{b}\right ) \text{Si}\left (\frac{a+b \cos ^{-1}(c x)}{b}\right )}{b^3 c^3}+\frac{9 \operatorname{Subst}\left (\int \frac{\sin (x)}{a+b x} \, dx,x,\cos ^{-1}(c x)\right )}{8 b^2 c^3}+\frac{9 \operatorname{Subst}\left (\int \frac{\sin (3 x)}{a+b x} \, dx,x,\cos ^{-1}(c x)\right )}{8 b^2 c^3}\\ &=\frac{x^2 \sqrt{1-c^2 x^2}}{2 b c \left (a+b \cos ^{-1}(c x)\right )^2}-\frac{x}{b^2 c^2 \left (a+b \cos ^{-1}(c x)\right )}+\frac{3 x^3}{2 b^2 \left (a+b \cos ^{-1}(c x)\right )}+\frac{\text{Ci}\left (\frac{a+b \cos ^{-1}(c x)}{b}\right ) \sin \left (\frac{a}{b}\right )}{b^3 c^3}-\frac{\cos \left (\frac{a}{b}\right ) \text{Si}\left (\frac{a+b \cos ^{-1}(c x)}{b}\right )}{b^3 c^3}+\frac{\left (9 \cos \left (\frac{a}{b}\right )\right ) \operatorname{Subst}\left (\int \frac{\sin \left (\frac{a}{b}+x\right )}{a+b x} \, dx,x,\cos ^{-1}(c x)\right )}{8 b^2 c^3}+\frac{\left (9 \cos \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,\cos ^{-1}(c x)\right )}{8 b^2 c^3}-\frac{\left (9 \sin \left (\frac{a}{b}\right )\right ) \operatorname{Subst}\left (\int \frac{\cos \left (\frac{a}{b}+x\right )}{a+b x} \, dx,x,\cos ^{-1}(c x)\right )}{8 b^2 c^3}-\frac{\left (9 \sin \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,\cos ^{-1}(c x)\right )}{8 b^2 c^3}\\ &=\frac{x^2 \sqrt{1-c^2 x^2}}{2 b c \left (a+b \cos ^{-1}(c x)\right )^2}-\frac{x}{b^2 c^2 \left (a+b \cos ^{-1}(c x)\right )}+\frac{3 x^3}{2 b^2 \left (a+b \cos ^{-1}(c x)\right )}-\frac{9 \text{Ci}\left (\frac{a}{b}+\cos ^{-1}(c x)\right ) \sin \left (\frac{a}{b}\right )}{8 b^3 c^3}+\frac{\text{Ci}\left (\frac{a+b \cos ^{-1}(c x)}{b}\right ) \sin \left (\frac{a}{b}\right )}{b^3 c^3}-\frac{9 \text{Ci}\left (\frac{3 a}{b}+3 \cos ^{-1}(c x)\right ) \sin \left (\frac{3 a}{b}\right )}{8 b^3 c^3}+\frac{9 \cos \left (\frac{a}{b}\right ) \text{Si}\left (\frac{a}{b}+\cos ^{-1}(c x)\right )}{8 b^3 c^3}+\frac{9 \cos \left (\frac{3 a}{b}\right ) \text{Si}\left (\frac{3 a}{b}+3 \cos ^{-1}(c x)\right )}{8 b^3 c^3}-\frac{\cos \left (\frac{a}{b}\right ) \text{Si}\left (\frac{a+b \cos ^{-1}(c x)}{b}\right )}{b^3 c^3}\\ \end{align*}
Mathematica [A] time = 0.455213, size = 169, normalized size = 0.86 \[ \frac{\frac{4 b^2 x^2 \sqrt{1-c^2 x^2}}{c \left (a+b \cos ^{-1}(c x)\right )^2}-\frac{\sin \left (\frac{a}{b}\right ) \text{CosIntegral}\left (\frac{a}{b}+\cos ^{-1}(c x)\right )}{c^3}-\frac{9 \sin \left (\frac{3 a}{b}\right ) \text{CosIntegral}\left (3 \left (\frac{a}{b}+\cos ^{-1}(c x)\right )\right )}{c^3}+\frac{\cos \left (\frac{a}{b}\right ) \text{Si}\left (\frac{a}{b}+\cos ^{-1}(c x)\right )}{c^3}+\frac{9 \cos \left (\frac{3 a}{b}\right ) \text{Si}\left (3 \left (\frac{a}{b}+\cos ^{-1}(c x)\right )\right )}{c^3}-\frac{8 b x}{c^2 \left (a+b \cos ^{-1}(c x)\right )}+\frac{12 b x^3}{a+b \cos ^{-1}(c x)}}{8 b^3} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.06, size = 291, normalized size = 1.5 \begin{align*}{\frac{1}{{c}^{3}} \left ({\frac{\sin \left ( 3\,\arccos \left ( cx \right ) \right ) }{8\, \left ( a+b\arccos \left ( cx \right ) \right ) ^{2}b}}-{\frac{3}{ \left ( 8\,a+8\,b\arccos \left ( cx \right ) \right ){b}^{3}} \left ( 3\,\arccos \left ( cx \right ) \sin \left ( 3\,{\frac{a}{b}} \right ){\it Ci} \left ( 3\,\arccos \left ( cx \right ) +3\,{\frac{a}{b}} \right ) b-3\,\arccos \left ( cx \right ){\it Si} \left ( 3\,\arccos \left ( cx \right ) +3\,{\frac{a}{b}} \right ) \cos \left ( 3\,{\frac{a}{b}} \right ) b+3\,\sin \left ( 3\,{\frac{a}{b}} \right ){\it Ci} \left ( 3\,\arccos \left ( cx \right ) +3\,{\frac{a}{b}} \right ) a-3\,{\it Si} \left ( 3\,\arccos \left ( cx \right ) +3\,{\frac{a}{b}} \right ) \cos \left ( 3\,{\frac{a}{b}} \right ) a-\cos \left ( 3\,\arccos \left ( cx \right ) \right ) b \right ) }+{\frac{1}{8\, \left ( a+b\arccos \left ( cx \right ) \right ) ^{2}b}\sqrt{-{c}^{2}{x}^{2}+1}}+{\frac{1}{ \left ( 8\,a+8\,b\arccos \left ( cx \right ) \right ){b}^{3}} \left ( \arccos \left ( cx \right ){\it Si} \left ( \arccos \left ( cx \right ) +{\frac{a}{b}} \right ) \cos \left ({\frac{a}{b}} \right ) b-\arccos \left ( cx \right ){\it Ci} \left ( \arccos \left ( cx \right ) +{\frac{a}{b}} \right ) \sin \left ({\frac{a}{b}} \right ) b+{\it Si} \left ( \arccos \left ( cx \right ) +{\frac{a}{b}} \right ) \cos \left ({\frac{a}{b}} \right ) a-{\it Ci} \left ( \arccos \left ( cx \right ) +{\frac{a}{b}} \right ) \sin \left ({\frac{a}{b}} \right ) a+xbc \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{3 \, a c^{2} x^{3} + \sqrt{c x + 1} \sqrt{-c x + 1} b c x^{2} - 2 \, a x +{\left (3 \, b c^{2} x^{3} - 2 \, b x\right )} \arctan \left (\sqrt{c x + 1} \sqrt{-c x + 1}, c x\right ) -{\left (b^{4} c^{2} \arctan \left (\sqrt{c x + 1} \sqrt{-c x + 1}, c x\right )^{2} + 2 \, a b^{3} c^{2} \arctan \left (\sqrt{c x + 1} \sqrt{-c x + 1}, c x\right ) + a^{2} b^{2} c^{2}\right )} \int \frac{9 \, c^{2} x^{2} - 2}{b^{3} c^{2} \arctan \left (\sqrt{c x + 1} \sqrt{-c x + 1}, c x\right ) + a b^{2} c^{2}}\,{d x}}{2 \,{\left (b^{4} c^{2} \arctan \left (\sqrt{c x + 1} \sqrt{-c x + 1}, c x\right )^{2} + 2 \, a b^{3} c^{2} \arctan \left (\sqrt{c x + 1} \sqrt{-c x + 1}, c x\right ) + a^{2} b^{2} c^{2}\right )}} \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{x^{2}}{b^{3} \arccos \left (c x\right )^{3} + 3 \, a b^{2} \arccos \left (c x\right )^{2} + 3 \, a^{2} b \arccos \left (c x\right ) + a^{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^{2}}{\left (a + b \operatorname{acos}{\left (c x \right )}\right )^{3}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] time = 1.44992, size = 1997, normalized size = 10.14 \begin{align*} \text{result too large to display} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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