3.48 \(\int \frac{x^2 (a+b \sinh ^{-1}(c x))}{(d+c^2 d x^2)^3} \, dx\)

Optimal. Leaf size=184 \[ -\frac{i b \text{PolyLog}\left (2,-i e^{\sinh ^{-1}(c x)}\right )}{8 c^3 d^3}+\frac{i b \text{PolyLog}\left (2,i e^{\sinh ^{-1}(c x)}\right )}{8 c^3 d^3}+\frac{x \left (a+b \sinh ^{-1}(c x)\right )}{8 c^2 d^3 \left (c^2 x^2+1\right )}-\frac{x \left (a+b \sinh ^{-1}(c x)\right )}{4 c^2 d^3 \left (c^2 x^2+1\right )^2}+\frac{\tan ^{-1}\left (e^{\sinh ^{-1}(c x)}\right ) \left (a+b \sinh ^{-1}(c x)\right )}{4 c^3 d^3}+\frac{b}{8 c^3 d^3 \sqrt{c^2 x^2+1}}-\frac{b}{12 c^3 d^3 \left (c^2 x^2+1\right )^{3/2}} \]

[Out]

-b/(12*c^3*d^3*(1 + c^2*x^2)^(3/2)) + b/(8*c^3*d^3*Sqrt[1 + c^2*x^2]) - (x*(a + b*ArcSinh[c*x]))/(4*c^2*d^3*(1
+ c^2*x^2)^2) + (x*(a + b*ArcSinh[c*x]))/(8*c^2*d^3*(1 + c^2*x^2)) + ((a + b*ArcSinh[c*x])*ArcTan[E^ArcSinh[c
*x]])/(4*c^3*d^3) - ((I/8)*b*PolyLog[2, (-I)*E^ArcSinh[c*x]])/(c^3*d^3) + ((I/8)*b*PolyLog[2, I*E^ArcSinh[c*x]
])/(c^3*d^3)

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Rubi [A]  time = 0.175743, antiderivative size = 184, normalized size of antiderivative = 1., number of steps used = 10, number of rules used = 7, integrand size = 24, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.292, Rules used = {5751, 5690, 5693, 4180, 2279, 2391, 261} \[ -\frac{i b \text{PolyLog}\left (2,-i e^{\sinh ^{-1}(c x)}\right )}{8 c^3 d^3}+\frac{i b \text{PolyLog}\left (2,i e^{\sinh ^{-1}(c x)}\right )}{8 c^3 d^3}+\frac{x \left (a+b \sinh ^{-1}(c x)\right )}{8 c^2 d^3 \left (c^2 x^2+1\right )}-\frac{x \left (a+b \sinh ^{-1}(c x)\right )}{4 c^2 d^3 \left (c^2 x^2+1\right )^2}+\frac{\tan ^{-1}\left (e^{\sinh ^{-1}(c x)}\right ) \left (a+b \sinh ^{-1}(c x)\right )}{4 c^3 d^3}+\frac{b}{8 c^3 d^3 \sqrt{c^2 x^2+1}}-\frac{b}{12 c^3 d^3 \left (c^2 x^2+1\right )^{3/2}} \]

Antiderivative was successfully verified.

[In]

Int[(x^2*(a + b*ArcSinh[c*x]))/(d + c^2*d*x^2)^3,x]

[Out]

-b/(12*c^3*d^3*(1 + c^2*x^2)^(3/2)) + b/(8*c^3*d^3*Sqrt[1 + c^2*x^2]) - (x*(a + b*ArcSinh[c*x]))/(4*c^2*d^3*(1
+ c^2*x^2)^2) + (x*(a + b*ArcSinh[c*x]))/(8*c^2*d^3*(1 + c^2*x^2)) + ((a + b*ArcSinh[c*x])*ArcTan[E^ArcSinh[c
*x]])/(4*c^3*d^3) - ((I/8)*b*PolyLog[2, (-I)*E^ArcSinh[c*x]])/(c^3*d^3) + ((I/8)*b*PolyLog[2, I*E^ArcSinh[c*x]
])/(c^3*d^3)

Rule 5751

Int[((a_.) + ArcSinh[(c_.)*(x_)]*(b_.))^(n_.)*((f_.)*(x_))^(m_)*((d_) + (e_.)*(x_)^2)^(p_), x_Symbol] :> Simp[
(f*(f*x)^(m - 1)*(d + e*x^2)^(p + 1)*(a + b*ArcSinh[c*x])^n)/(2*e*(p + 1)), x] + (-Dist[(f^2*(m - 1))/(2*e*(p
+ 1)), Int[(f*x)^(m - 2)*(d + e*x^2)^(p + 1)*(a + b*ArcSinh[c*x])^n, x], x] - Dist[(b*f*n*d^IntPart[p]*(d + e*
x^2)^FracPart[p])/(2*c*(p + 1)*(1 + c^2*x^2)^FracPart[p]), Int[(f*x)^(m - 1)*(1 + c^2*x^2)^(p + 1/2)*(a + b*Ar
cSinh[c*x])^(n - 1), x], x]) /; FreeQ[{a, b, c, d, e, f}, x] && EqQ[e, c^2*d] && GtQ[n, 0] && LtQ[p, -1] && Gt
Q[m, 1]

Rule 5690

Int[((a_.) + ArcSinh[(c_.)*(x_)]*(b_.))^(n_.)*((d_) + (e_.)*(x_)^2)^(p_), x_Symbol] :> -Simp[(x*(d + e*x^2)^(p
+ 1)*(a + b*ArcSinh[c*x])^n)/(2*d*(p + 1)), x] + (Dist[(2*p + 3)/(2*d*(p + 1)), Int[(d + e*x^2)^(p + 1)*(a +
b*ArcSinh[c*x])^n, x], x] + Dist[(b*c*n*d^IntPart[p]*(d + e*x^2)^FracPart[p])/(2*(p + 1)*(1 + c^2*x^2)^FracPar
t[p]), Int[x*(1 + c^2*x^2)^(p + 1/2)*(a + b*ArcSinh[c*x])^(n - 1), x], x]) /; FreeQ[{a, b, c, d, e}, x] && EqQ
[e, c^2*d] && GtQ[n, 0] && LtQ[p, -1] && NeQ[p, -3/2]

Rule 5693

Int[((a_.) + ArcSinh[(c_.)*(x_)]*(b_.))^(n_.)/((d_) + (e_.)*(x_)^2), x_Symbol] :> Dist[1/(c*d), Subst[Int[(a +
b*x)^n*Sech[x], x], x, ArcSinh[c*x]], x] /; FreeQ[{a, b, c, d, e}, x] && EqQ[e, c^2*d] && IGtQ[n, 0]

Rule 4180

Int[csc[(e_.) + Pi*(k_.) + (Complex[0, fz_])*(f_.)*(x_)]*((c_.) + (d_.)*(x_))^(m_.), x_Symbol] :> Simp[(-2*(c
+ d*x)^m*ArcTanh[E^(-(I*e) + f*fz*x)/E^(I*k*Pi)])/(f*fz*I), x] + (-Dist[(d*m)/(f*fz*I), Int[(c + d*x)^(m - 1)*
Log[1 - E^(-(I*e) + f*fz*x)/E^(I*k*Pi)], x], x] + Dist[(d*m)/(f*fz*I), Int[(c + d*x)^(m - 1)*Log[1 + E^(-(I*e)
+ f*fz*x)/E^(I*k*Pi)], x], x]) /; FreeQ[{c, d, e, f, fz}, x] && IntegerQ[2*k] && IGtQ[m, 0]

Rule 2279

Int[Log[(a_) + (b_.)*((F_)^((e_.)*((c_.) + (d_.)*(x_))))^(n_.)], x_Symbol] :> Dist[1/(d*e*n*Log[F]), Subst[Int
[Log[a + b*x]/x, x], x, (F^(e*(c + d*x)))^n], x] /; FreeQ[{F, a, b, c, d, e, n}, x] && GtQ[a, 0]

Rule 2391

Int[Log[(c_.)*((d_) + (e_.)*(x_)^(n_.))]/(x_), x_Symbol] :> -Simp[PolyLog[2, -(c*e*x^n)]/n, x] /; FreeQ[{c, d,
e, n}, x] && EqQ[c*d, 1]

Rule 261

Int[(x_)^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> Simp[(a + b*x^n)^(p + 1)/(b*n*(p + 1)), x] /; FreeQ
[{a, b, m, n, p}, x] && EqQ[m, n - 1] && NeQ[p, -1]

Rubi steps

\begin{align*} \int \frac{x^2 \left (a+b \sinh ^{-1}(c x)\right )}{\left (d+c^2 d x^2\right )^3} \, dx &=-\frac{x \left (a+b \sinh ^{-1}(c x)\right )}{4 c^2 d^3 \left (1+c^2 x^2\right )^2}+\frac{b \int \frac{x}{\left (1+c^2 x^2\right )^{5/2}} \, dx}{4 c d^3}+\frac{\int \frac{a+b \sinh ^{-1}(c x)}{\left (d+c^2 d x^2\right )^2} \, dx}{4 c^2 d}\\ &=-\frac{b}{12 c^3 d^3 \left (1+c^2 x^2\right )^{3/2}}-\frac{x \left (a+b \sinh ^{-1}(c x)\right )}{4 c^2 d^3 \left (1+c^2 x^2\right )^2}+\frac{x \left (a+b \sinh ^{-1}(c x)\right )}{8 c^2 d^3 \left (1+c^2 x^2\right )}-\frac{b \int \frac{x}{\left (1+c^2 x^2\right )^{3/2}} \, dx}{8 c d^3}+\frac{\int \frac{a+b \sinh ^{-1}(c x)}{d+c^2 d x^2} \, dx}{8 c^2 d^2}\\ &=-\frac{b}{12 c^3 d^3 \left (1+c^2 x^2\right )^{3/2}}+\frac{b}{8 c^3 d^3 \sqrt{1+c^2 x^2}}-\frac{x \left (a+b \sinh ^{-1}(c x)\right )}{4 c^2 d^3 \left (1+c^2 x^2\right )^2}+\frac{x \left (a+b \sinh ^{-1}(c x)\right )}{8 c^2 d^3 \left (1+c^2 x^2\right )}+\frac{\operatorname{Subst}\left (\int (a+b x) \text{sech}(x) \, dx,x,\sinh ^{-1}(c x)\right )}{8 c^3 d^3}\\ &=-\frac{b}{12 c^3 d^3 \left (1+c^2 x^2\right )^{3/2}}+\frac{b}{8 c^3 d^3 \sqrt{1+c^2 x^2}}-\frac{x \left (a+b \sinh ^{-1}(c x)\right )}{4 c^2 d^3 \left (1+c^2 x^2\right )^2}+\frac{x \left (a+b \sinh ^{-1}(c x)\right )}{8 c^2 d^3 \left (1+c^2 x^2\right )}+\frac{\left (a+b \sinh ^{-1}(c x)\right ) \tan ^{-1}\left (e^{\sinh ^{-1}(c x)}\right )}{4 c^3 d^3}-\frac{(i b) \operatorname{Subst}\left (\int \log \left (1-i e^x\right ) \, dx,x,\sinh ^{-1}(c x)\right )}{8 c^3 d^3}+\frac{(i b) \operatorname{Subst}\left (\int \log \left (1+i e^x\right ) \, dx,x,\sinh ^{-1}(c x)\right )}{8 c^3 d^3}\\ &=-\frac{b}{12 c^3 d^3 \left (1+c^2 x^2\right )^{3/2}}+\frac{b}{8 c^3 d^3 \sqrt{1+c^2 x^2}}-\frac{x \left (a+b \sinh ^{-1}(c x)\right )}{4 c^2 d^3 \left (1+c^2 x^2\right )^2}+\frac{x \left (a+b \sinh ^{-1}(c x)\right )}{8 c^2 d^3 \left (1+c^2 x^2\right )}+\frac{\left (a+b \sinh ^{-1}(c x)\right ) \tan ^{-1}\left (e^{\sinh ^{-1}(c x)}\right )}{4 c^3 d^3}-\frac{(i b) \operatorname{Subst}\left (\int \frac{\log (1-i x)}{x} \, dx,x,e^{\sinh ^{-1}(c x)}\right )}{8 c^3 d^3}+\frac{(i b) \operatorname{Subst}\left (\int \frac{\log (1+i x)}{x} \, dx,x,e^{\sinh ^{-1}(c x)}\right )}{8 c^3 d^3}\\ &=-\frac{b}{12 c^3 d^3 \left (1+c^2 x^2\right )^{3/2}}+\frac{b}{8 c^3 d^3 \sqrt{1+c^2 x^2}}-\frac{x \left (a+b \sinh ^{-1}(c x)\right )}{4 c^2 d^3 \left (1+c^2 x^2\right )^2}+\frac{x \left (a+b \sinh ^{-1}(c x)\right )}{8 c^2 d^3 \left (1+c^2 x^2\right )}+\frac{\left (a+b \sinh ^{-1}(c x)\right ) \tan ^{-1}\left (e^{\sinh ^{-1}(c x)}\right )}{4 c^3 d^3}-\frac{i b \text{Li}_2\left (-i e^{\sinh ^{-1}(c x)}\right )}{8 c^3 d^3}+\frac{i b \text{Li}_2\left (i e^{\sinh ^{-1}(c x)}\right )}{8 c^3 d^3}\\ \end{align*}

Mathematica [A]  time = 0.24785, size = 340, normalized size = 1.85 \[ \frac{-3 i b \left (c^2 x^2+1\right )^2 \text{PolyLog}\left (2,-i e^{\sinh ^{-1}(c x)}\right )+3 i b \left (c^2 x^2+1\right )^2 \text{PolyLog}\left (2,i e^{\sinh ^{-1}(c x)}\right )+3 a c^3 x^3+3 a c^4 x^4 \tan ^{-1}(c x)+6 a c^2 x^2 \tan ^{-1}(c x)-3 a c x+3 a \tan ^{-1}(c x)+3 b c^2 x^2 \sqrt{c^2 x^2+1}+b \sqrt{c^2 x^2+1}+3 b c^3 x^3 \sinh ^{-1}(c x)+3 i b c^4 x^4 \sinh ^{-1}(c x) \log \left (1-i e^{\sinh ^{-1}(c x)}\right )-3 i b c^4 x^4 \sinh ^{-1}(c x) \log \left (1+i e^{\sinh ^{-1}(c x)}\right )+6 i b c^2 x^2 \sinh ^{-1}(c x) \log \left (1-i e^{\sinh ^{-1}(c x)}\right )-6 i b c^2 x^2 \sinh ^{-1}(c x) \log \left (1+i e^{\sinh ^{-1}(c x)}\right )-3 b c x \sinh ^{-1}(c x)+3 i b \sinh ^{-1}(c x) \log \left (1-i e^{\sinh ^{-1}(c x)}\right )-3 i b \sinh ^{-1}(c x) \log \left (1+i e^{\sinh ^{-1}(c x)}\right )}{24 c^3 d^3 \left (c^2 x^2+1\right )^2} \]

Warning: Unable to verify antiderivative.

[In]

Integrate[(x^2*(a + b*ArcSinh[c*x]))/(d + c^2*d*x^2)^3,x]

[Out]

(-3*a*c*x + 3*a*c^3*x^3 + b*Sqrt[1 + c^2*x^2] + 3*b*c^2*x^2*Sqrt[1 + c^2*x^2] - 3*b*c*x*ArcSinh[c*x] + 3*b*c^3
*x^3*ArcSinh[c*x] + 3*a*ArcTan[c*x] + 6*a*c^2*x^2*ArcTan[c*x] + 3*a*c^4*x^4*ArcTan[c*x] + (3*I)*b*ArcSinh[c*x]
*Log[1 - I*E^ArcSinh[c*x]] + (6*I)*b*c^2*x^2*ArcSinh[c*x]*Log[1 - I*E^ArcSinh[c*x]] + (3*I)*b*c^4*x^4*ArcSinh[
c*x]*Log[1 - I*E^ArcSinh[c*x]] - (3*I)*b*ArcSinh[c*x]*Log[1 + I*E^ArcSinh[c*x]] - (6*I)*b*c^2*x^2*ArcSinh[c*x]
*Log[1 + I*E^ArcSinh[c*x]] - (3*I)*b*c^4*x^4*ArcSinh[c*x]*Log[1 + I*E^ArcSinh[c*x]] - (3*I)*b*(1 + c^2*x^2)^2*
PolyLog[2, (-I)*E^ArcSinh[c*x]] + (3*I)*b*(1 + c^2*x^2)^2*PolyLog[2, I*E^ArcSinh[c*x]])/(24*c^3*d^3*(1 + c^2*x
^2)^2)

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Maple [A]  time = 0.013, size = 307, normalized size = 1.7 \begin{align*}{\frac{a{x}^{3}}{8\,{d}^{3} \left ({c}^{2}{x}^{2}+1 \right ) ^{2}}}-{\frac{ax}{8\,{c}^{2}{d}^{3} \left ({c}^{2}{x}^{2}+1 \right ) ^{2}}}+{\frac{a\arctan \left ( cx \right ) }{8\,{c}^{3}{d}^{3}}}+{\frac{b{\it Arcsinh} \left ( cx \right ){x}^{3}}{8\,{d}^{3} \left ({c}^{2}{x}^{2}+1 \right ) ^{2}}}-{\frac{b{\it Arcsinh} \left ( cx \right ) x}{8\,{c}^{2}{d}^{3} \left ({c}^{2}{x}^{2}+1 \right ) ^{2}}}+{\frac{b{\it Arcsinh} \left ( cx \right ) \arctan \left ( cx \right ) }{8\,{c}^{3}{d}^{3}}}+{\frac{b\arctan \left ( cx \right ) }{8\,{c}^{3}{d}^{3}}\ln \left ( 1+{i \left ( 1+icx \right ){\frac{1}{\sqrt{{c}^{2}{x}^{2}+1}}}} \right ) }-{\frac{b\arctan \left ( cx \right ) }{8\,{c}^{3}{d}^{3}}\ln \left ( 1-{i \left ( 1+icx \right ){\frac{1}{\sqrt{{c}^{2}{x}^{2}+1}}}} \right ) }-{\frac{{\frac{i}{8}}b}{{c}^{3}{d}^{3}}{\it dilog} \left ( 1+{i \left ( 1+icx \right ){\frac{1}{\sqrt{{c}^{2}{x}^{2}+1}}}} \right ) }+{\frac{{\frac{i}{8}}b}{{c}^{3}{d}^{3}}{\it dilog} \left ( 1-{i \left ( 1+icx \right ){\frac{1}{\sqrt{{c}^{2}{x}^{2}+1}}}} \right ) }+{\frac{b{x}^{2}}{8\,c{d}^{3}} \left ({c}^{2}{x}^{2}+1 \right ) ^{-{\frac{3}{2}}}}+{\frac{b}{24\,{c}^{3}{d}^{3}} \left ({c}^{2}{x}^{2}+1 \right ) ^{-{\frac{3}{2}}}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x^2*(a+b*arcsinh(c*x))/(c^2*d*x^2+d)^3,x)

[Out]

1/8*a/d^3*x^3/(c^2*x^2+1)^2-1/8/c^2*a/d^3*x/(c^2*x^2+1)^2+1/8/c^3*a/d^3*arctan(c*x)+1/8*b/d^3*arcsinh(c*x)*x^3
/(c^2*x^2+1)^2-1/8/c^2*b/d^3*arcsinh(c*x)*x/(c^2*x^2+1)^2+1/8/c^3*b/d^3*arcsinh(c*x)*arctan(c*x)+1/8/c^3*b/d^3
*arctan(c*x)*ln(1+I*(1+I*c*x)/(c^2*x^2+1)^(1/2))-1/8/c^3*b/d^3*arctan(c*x)*ln(1-I*(1+I*c*x)/(c^2*x^2+1)^(1/2))
-1/8*I/c^3*b/d^3*dilog(1+I*(1+I*c*x)/(c^2*x^2+1)^(1/2))+1/8*I/c^3*b/d^3*dilog(1-I*(1+I*c*x)/(c^2*x^2+1)^(1/2))
+1/8/c*b/d^3*x^2/(c^2*x^2+1)^(3/2)+1/24*b/c^3/d^3/(c^2*x^2+1)^(3/2)

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Maxima [F]  time = 0., size = 0, normalized size = 0. \begin{align*} \frac{1}{8} \, a{\left (\frac{c^{2} x^{3} - x}{c^{6} d^{3} x^{4} + 2 \, c^{4} d^{3} x^{2} + c^{2} d^{3}} + \frac{\arctan \left (c x\right )}{c^{3} d^{3}}\right )} + b \int \frac{x^{2} \log \left (c x + \sqrt{c^{2} x^{2} + 1}\right )}{c^{6} d^{3} x^{6} + 3 \, c^{4} d^{3} x^{4} + 3 \, c^{2} d^{3} x^{2} + d^{3}}\,{d x} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^2*(a+b*arcsinh(c*x))/(c^2*d*x^2+d)^3,x, algorithm="maxima")

[Out]

1/8*a*((c^2*x^3 - x)/(c^6*d^3*x^4 + 2*c^4*d^3*x^2 + c^2*d^3) + arctan(c*x)/(c^3*d^3)) + b*integrate(x^2*log(c*
x + sqrt(c^2*x^2 + 1))/(c^6*d^3*x^6 + 3*c^4*d^3*x^4 + 3*c^2*d^3*x^2 + d^3), x)

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Fricas [F]  time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left (\frac{b x^{2} \operatorname{arsinh}\left (c x\right ) + a x^{2}}{c^{6} d^{3} x^{6} + 3 \, c^{4} d^{3} x^{4} + 3 \, c^{2} d^{3} x^{2} + d^{3}}, x\right ) \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^2*(a+b*arcsinh(c*x))/(c^2*d*x^2+d)^3,x, algorithm="fricas")

[Out]

integral((b*x^2*arcsinh(c*x) + a*x^2)/(c^6*d^3*x^6 + 3*c^4*d^3*x^4 + 3*c^2*d^3*x^2 + d^3), x)

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Sympy [F]  time = 0., size = 0, normalized size = 0. \begin{align*} \frac{\int \frac{a x^{2}}{c^{6} x^{6} + 3 c^{4} x^{4} + 3 c^{2} x^{2} + 1}\, dx + \int \frac{b x^{2} \operatorname{asinh}{\left (c x \right )}}{c^{6} x^{6} + 3 c^{4} x^{4} + 3 c^{2} x^{2} + 1}\, dx}{d^{3}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x**2*(a+b*asinh(c*x))/(c**2*d*x**2+d)**3,x)

[Out]

(Integral(a*x**2/(c**6*x**6 + 3*c**4*x**4 + 3*c**2*x**2 + 1), x) + Integral(b*x**2*asinh(c*x)/(c**6*x**6 + 3*c
**4*x**4 + 3*c**2*x**2 + 1), x))/d**3

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Giac [F]  time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{{\left (b \operatorname{arsinh}\left (c x\right ) + a\right )} x^{2}}{{\left (c^{2} d x^{2} + d\right )}^{3}}\,{d x} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^2*(a+b*arcsinh(c*x))/(c^2*d*x^2+d)^3,x, algorithm="giac")

[Out]

integrate((b*arcsinh(c*x) + a)*x^2/(c^2*d*x^2 + d)^3, x)