3.1.78 \(\int x^4 \cosh ^{-1}(a x)^{3/2} \, dx\) [78]

Optimal. Leaf size=345 \[ -\frac {4 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{25 a^5}-\frac {2 x^2 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{25 a^3}-\frac {3 x^4 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{50 a}+\frac {1}{5} x^5 \cosh ^{-1}(a x)^{3/2}-\frac {3 \sqrt {\pi } \text {Erf}\left (\sqrt {\cosh ^{-1}(a x)}\right )}{64 a^5}-\frac {\sqrt {\frac {\pi }{3}} \text {Erf}\left (\sqrt {3} \sqrt {\cosh ^{-1}(a x)}\right )}{200 a^5}-\frac {3 \sqrt {3 \pi } \text {Erf}\left (\sqrt {3} \sqrt {\cosh ^{-1}(a x)}\right )}{3200 a^5}-\frac {3 \sqrt {\frac {\pi }{5}} \text {Erf}\left (\sqrt {5} \sqrt {\cosh ^{-1}(a x)}\right )}{3200 a^5}+\frac {3 \sqrt {\pi } \text {Erfi}\left (\sqrt {\cosh ^{-1}(a x)}\right )}{64 a^5}+\frac {\sqrt {\frac {\pi }{3}} \text {Erfi}\left (\sqrt {3} \sqrt {\cosh ^{-1}(a x)}\right )}{200 a^5}+\frac {3 \sqrt {3 \pi } \text {Erfi}\left (\sqrt {3} \sqrt {\cosh ^{-1}(a x)}\right )}{3200 a^5}+\frac {3 \sqrt {\frac {\pi }{5}} \text {Erfi}\left (\sqrt {5} \sqrt {\cosh ^{-1}(a x)}\right )}{3200 a^5} \]

[Out]

1/5*x^5*arccosh(a*x)^(3/2)-3/16000*erf(5^(1/2)*arccosh(a*x)^(1/2))*5^(1/2)*Pi^(1/2)/a^5+3/16000*erfi(5^(1/2)*a
rccosh(a*x)^(1/2))*5^(1/2)*Pi^(1/2)/a^5-1/384*erf(3^(1/2)*arccosh(a*x)^(1/2))*3^(1/2)*Pi^(1/2)/a^5+1/384*erfi(
3^(1/2)*arccosh(a*x)^(1/2))*3^(1/2)*Pi^(1/2)/a^5-3/64*erf(arccosh(a*x)^(1/2))*Pi^(1/2)/a^5+3/64*erfi(arccosh(a
*x)^(1/2))*Pi^(1/2)/a^5-4/25*(a*x-1)^(1/2)*(a*x+1)^(1/2)*arccosh(a*x)^(1/2)/a^5-2/25*x^2*(a*x-1)^(1/2)*(a*x+1)
^(1/2)*arccosh(a*x)^(1/2)/a^3-3/50*x^4*(a*x-1)^(1/2)*(a*x+1)^(1/2)*arccosh(a*x)^(1/2)/a

________________________________________________________________________________________

Rubi [A]
time = 0.71, antiderivative size = 345, normalized size of antiderivative = 1.00, number of steps used = 41, number of rules used = 10, integrand size = 12, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.833, Rules used = {5884, 5939, 5915, 5881, 3389, 2211, 2235, 2236, 5887, 5556} \begin {gather*} -\frac {3 \sqrt {\pi } \text {Erf}\left (\sqrt {\cosh ^{-1}(a x)}\right )}{64 a^5}-\frac {3 \sqrt {3 \pi } \text {Erf}\left (\sqrt {3} \sqrt {\cosh ^{-1}(a x)}\right )}{3200 a^5}-\frac {\sqrt {\frac {\pi }{3}} \text {Erf}\left (\sqrt {3} \sqrt {\cosh ^{-1}(a x)}\right )}{200 a^5}-\frac {3 \sqrt {\frac {\pi }{5}} \text {Erf}\left (\sqrt {5} \sqrt {\cosh ^{-1}(a x)}\right )}{3200 a^5}+\frac {3 \sqrt {\pi } \text {Erfi}\left (\sqrt {\cosh ^{-1}(a x)}\right )}{64 a^5}+\frac {3 \sqrt {3 \pi } \text {Erfi}\left (\sqrt {3} \sqrt {\cosh ^{-1}(a x)}\right )}{3200 a^5}+\frac {\sqrt {\frac {\pi }{3}} \text {Erfi}\left (\sqrt {3} \sqrt {\cosh ^{-1}(a x)}\right )}{200 a^5}+\frac {3 \sqrt {\frac {\pi }{5}} \text {Erfi}\left (\sqrt {5} \sqrt {\cosh ^{-1}(a x)}\right )}{3200 a^5}-\frac {4 \sqrt {a x-1} \sqrt {a x+1} \sqrt {\cosh ^{-1}(a x)}}{25 a^5}-\frac {2 x^2 \sqrt {a x-1} \sqrt {a x+1} \sqrt {\cosh ^{-1}(a x)}}{25 a^3}+\frac {1}{5} x^5 \cosh ^{-1}(a x)^{3/2}-\frac {3 x^4 \sqrt {a x-1} \sqrt {a x+1} \sqrt {\cosh ^{-1}(a x)}}{50 a} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[x^4*ArcCosh[a*x]^(3/2),x]

[Out]

(-4*Sqrt[-1 + a*x]*Sqrt[1 + a*x]*Sqrt[ArcCosh[a*x]])/(25*a^5) - (2*x^2*Sqrt[-1 + a*x]*Sqrt[1 + a*x]*Sqrt[ArcCo
sh[a*x]])/(25*a^3) - (3*x^4*Sqrt[-1 + a*x]*Sqrt[1 + a*x]*Sqrt[ArcCosh[a*x]])/(50*a) + (x^5*ArcCosh[a*x]^(3/2))
/5 - (3*Sqrt[Pi]*Erf[Sqrt[ArcCosh[a*x]]])/(64*a^5) - (Sqrt[Pi/3]*Erf[Sqrt[3]*Sqrt[ArcCosh[a*x]]])/(200*a^5) -
(3*Sqrt[3*Pi]*Erf[Sqrt[3]*Sqrt[ArcCosh[a*x]]])/(3200*a^5) - (3*Sqrt[Pi/5]*Erf[Sqrt[5]*Sqrt[ArcCosh[a*x]]])/(32
00*a^5) + (3*Sqrt[Pi]*Erfi[Sqrt[ArcCosh[a*x]]])/(64*a^5) + (Sqrt[Pi/3]*Erfi[Sqrt[3]*Sqrt[ArcCosh[a*x]]])/(200*
a^5) + (3*Sqrt[3*Pi]*Erfi[Sqrt[3]*Sqrt[ArcCosh[a*x]]])/(3200*a^5) + (3*Sqrt[Pi/5]*Erfi[Sqrt[5]*Sqrt[ArcCosh[a*
x]]])/(3200*a^5)

Rule 2211

Int[(F_)^((g_.)*((e_.) + (f_.)*(x_)))/Sqrt[(c_.) + (d_.)*(x_)], x_Symbol] :> Dist[2/d, Subst[Int[F^(g*(e - c*(
f/d)) + f*g*(x^2/d)), x], x, Sqrt[c + d*x]], x] /; FreeQ[{F, c, d, e, f, g}, x] &&  !TrueQ[$UseGamma]

Rule 2235

Int[(F_)^((a_.) + (b_.)*((c_.) + (d_.)*(x_))^2), x_Symbol] :> Simp[F^a*Sqrt[Pi]*(Erfi[(c + d*x)*Rt[b*Log[F], 2
]]/(2*d*Rt[b*Log[F], 2])), x] /; FreeQ[{F, a, b, c, d}, x] && PosQ[b]

Rule 2236

Int[(F_)^((a_.) + (b_.)*((c_.) + (d_.)*(x_))^2), x_Symbol] :> Simp[F^a*Sqrt[Pi]*(Erf[(c + d*x)*Rt[(-b)*Log[F],
2]]/(2*d*Rt[(-b)*Log[F], 2])), x] /; FreeQ[{F, a, b, c, d}, x] && NegQ[b]

Rule 3389

Int[((c_.) + (d_.)*(x_))^(m_.)*sin[(e_.) + (f_.)*(x_)], x_Symbol] :> Dist[I/2, Int[(c + d*x)^m/E^(I*(e + f*x))
, x], x] - Dist[I/2, Int[(c + d*x)^m*E^(I*(e + f*x)), x], x] /; FreeQ[{c, d, e, f, m}, x]

Rule 5556

Int[Cosh[(a_.) + (b_.)*(x_)]^(p_.)*((c_.) + (d_.)*(x_))^(m_.)*Sinh[(a_.) + (b_.)*(x_)]^(n_.), x_Symbol] :> Int
[ExpandTrigReduce[(c + d*x)^m, Sinh[a + b*x]^n*Cosh[a + b*x]^p, x], x] /; FreeQ[{a, b, c, d, m}, x] && IGtQ[n,
0] && IGtQ[p, 0]

Rule 5881

Int[((a_.) + ArcCosh[(c_.)*(x_)]*(b_.))^(n_), x_Symbol] :> Dist[1/(b*c), Subst[Int[x^n*Sinh[-a/b + x/b], x], x
, a + b*ArcCosh[c*x]], x] /; FreeQ[{a, b, c, n}, x]

Rule 5884

Int[((a_.) + ArcCosh[(c_.)*(x_)]*(b_.))^(n_)*(x_)^(m_.), x_Symbol] :> Simp[x^(m + 1)*((a + b*ArcCosh[c*x])^n/(
m + 1)), x] - Dist[b*c*(n/(m + 1)), Int[x^(m + 1)*((a + b*ArcCosh[c*x])^(n - 1)/(Sqrt[1 + c*x]*Sqrt[-1 + c*x])
), x], x] /; FreeQ[{a, b, c}, x] && IGtQ[m, 0] && GtQ[n, 0]

Rule 5887

Int[((a_.) + ArcCosh[(c_.)*(x_)]*(b_.))^(n_)*(x_)^(m_.), x_Symbol] :> Dist[1/(b*c^(m + 1)), Subst[Int[x^n*Cosh
[-a/b + x/b]^m*Sinh[-a/b + x/b], x], x, a + b*ArcCosh[c*x]], x] /; FreeQ[{a, b, c, n}, x] && IGtQ[m, 0]

Rule 5915

Int[((a_.) + ArcCosh[(c_.)*(x_)]*(b_.))^(n_.)*(x_)*((d1_) + (e1_.)*(x_))^(p_)*((d2_) + (e2_.)*(x_))^(p_), x_Sy
mbol] :> Simp[(d1 + e1*x)^(p + 1)*(d2 + e2*x)^(p + 1)*((a + b*ArcCosh[c*x])^n/(2*e1*e2*(p + 1))), x] - Dist[b*
(n/(2*c*(p + 1)))*Simp[(d1 + e1*x)^p/(1 + c*x)^p]*Simp[(d2 + e2*x)^p/(-1 + c*x)^p], Int[(1 + c*x)^(p + 1/2)*(-
1 + c*x)^(p + 1/2)*(a + b*ArcCosh[c*x])^(n - 1), x], x] /; FreeQ[{a, b, c, d1, e1, d2, e2, p}, x] && EqQ[e1, c
*d1] && EqQ[e2, (-c)*d2] && GtQ[n, 0] && NeQ[p, -1]

Rule 5939

Int[((a_.) + ArcCosh[(c_.)*(x_)]*(b_.))^(n_.)*((f_.)*(x_))^(m_)*((d1_) + (e1_.)*(x_))^(p_)*((d2_) + (e2_.)*(x_
))^(p_), x_Symbol] :> Simp[f*(f*x)^(m - 1)*(d1 + e1*x)^(p + 1)*(d2 + e2*x)^(p + 1)*((a + b*ArcCosh[c*x])^n/(e1
*e2*(m + 2*p + 1))), x] + (Dist[f^2*((m - 1)/(c^2*(m + 2*p + 1))), Int[(f*x)^(m - 2)*(d1 + e1*x)^p*(d2 + e2*x)
^p*(a + b*ArcCosh[c*x])^n, x], x] - Dist[b*f*(n/(c*(m + 2*p + 1)))*Simp[(d1 + e1*x)^p/(1 + c*x)^p]*Simp[(d2 +
e2*x)^p/(-1 + c*x)^p], Int[(f*x)^(m - 1)*(1 + c*x)^(p + 1/2)*(-1 + c*x)^(p + 1/2)*(a + b*ArcCosh[c*x])^(n - 1)
, x], x]) /; FreeQ[{a, b, c, d1, e1, d2, e2, f, p}, x] && EqQ[e1, c*d1] && EqQ[e2, (-c)*d2] && GtQ[n, 0] && IG
tQ[m, 1] && NeQ[m + 2*p + 1, 0]

Rubi steps

\begin {align*} \int x^4 \cosh ^{-1}(a x)^{3/2} \, dx &=\frac {1}{5} x^5 \cosh ^{-1}(a x)^{3/2}-\frac {1}{10} (3 a) \int \frac {x^5 \sqrt {\cosh ^{-1}(a x)}}{\sqrt {-1+a x} \sqrt {1+a x}} \, dx\\ &=-\frac {3 x^4 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{50 a}+\frac {1}{5} x^5 \cosh ^{-1}(a x)^{3/2}+\frac {3}{100} \int \frac {x^4}{\sqrt {\cosh ^{-1}(a x)}} \, dx-\frac {6 \int \frac {x^3 \sqrt {\cosh ^{-1}(a x)}}{\sqrt {-1+a x} \sqrt {1+a x}} \, dx}{25 a}\\ &=-\frac {2 x^2 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{25 a^3}-\frac {3 x^4 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{50 a}+\frac {1}{5} x^5 \cosh ^{-1}(a x)^{3/2}+\frac {3 \text {Subst}\left (\int \frac {\cosh ^4(x) \sinh (x)}{\sqrt {x}} \, dx,x,\cosh ^{-1}(a x)\right )}{100 a^5}-\frac {4 \int \frac {x \sqrt {\cosh ^{-1}(a x)}}{\sqrt {-1+a x} \sqrt {1+a x}} \, dx}{25 a^3}+\frac {\int \frac {x^2}{\sqrt {\cosh ^{-1}(a x)}} \, dx}{25 a^2}\\ &=-\frac {4 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{25 a^5}-\frac {2 x^2 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{25 a^3}-\frac {3 x^4 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{50 a}+\frac {1}{5} x^5 \cosh ^{-1}(a x)^{3/2}+\frac {3 \text {Subst}\left (\int \left (\frac {\sinh (x)}{8 \sqrt {x}}+\frac {3 \sinh (3 x)}{16 \sqrt {x}}+\frac {\sinh (5 x)}{16 \sqrt {x}}\right ) \, dx,x,\cosh ^{-1}(a x)\right )}{100 a^5}+\frac {\text {Subst}\left (\int \frac {\cosh ^2(x) \sinh (x)}{\sqrt {x}} \, dx,x,\cosh ^{-1}(a x)\right )}{25 a^5}+\frac {2 \int \frac {1}{\sqrt {\cosh ^{-1}(a x)}} \, dx}{25 a^4}\\ &=-\frac {4 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{25 a^5}-\frac {2 x^2 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{25 a^3}-\frac {3 x^4 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{50 a}+\frac {1}{5} x^5 \cosh ^{-1}(a x)^{3/2}+\frac {3 \text {Subst}\left (\int \frac {\sinh (5 x)}{\sqrt {x}} \, dx,x,\cosh ^{-1}(a x)\right )}{1600 a^5}+\frac {3 \text {Subst}\left (\int \frac {\sinh (x)}{\sqrt {x}} \, dx,x,\cosh ^{-1}(a x)\right )}{800 a^5}+\frac {9 \text {Subst}\left (\int \frac {\sinh (3 x)}{\sqrt {x}} \, dx,x,\cosh ^{-1}(a x)\right )}{1600 a^5}+\frac {\text {Subst}\left (\int \left (\frac {\sinh (x)}{4 \sqrt {x}}+\frac {\sinh (3 x)}{4 \sqrt {x}}\right ) \, dx,x,\cosh ^{-1}(a x)\right )}{25 a^5}+\frac {2 \text {Subst}\left (\int \frac {\sinh (x)}{\sqrt {x}} \, dx,x,\cosh ^{-1}(a x)\right )}{25 a^5}\\ &=-\frac {4 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{25 a^5}-\frac {2 x^2 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{25 a^3}-\frac {3 x^4 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{50 a}+\frac {1}{5} x^5 \cosh ^{-1}(a x)^{3/2}-\frac {3 \text {Subst}\left (\int \frac {e^{-5 x}}{\sqrt {x}} \, dx,x,\cosh ^{-1}(a x)\right )}{3200 a^5}+\frac {3 \text {Subst}\left (\int \frac {e^{5 x}}{\sqrt {x}} \, dx,x,\cosh ^{-1}(a x)\right )}{3200 a^5}-\frac {3 \text {Subst}\left (\int \frac {e^{-x}}{\sqrt {x}} \, dx,x,\cosh ^{-1}(a x)\right )}{1600 a^5}+\frac {3 \text {Subst}\left (\int \frac {e^x}{\sqrt {x}} \, dx,x,\cosh ^{-1}(a x)\right )}{1600 a^5}-\frac {9 \text {Subst}\left (\int \frac {e^{-3 x}}{\sqrt {x}} \, dx,x,\cosh ^{-1}(a x)\right )}{3200 a^5}+\frac {9 \text {Subst}\left (\int \frac {e^{3 x}}{\sqrt {x}} \, dx,x,\cosh ^{-1}(a x)\right )}{3200 a^5}+\frac {\text {Subst}\left (\int \frac {\sinh (x)}{\sqrt {x}} \, dx,x,\cosh ^{-1}(a x)\right )}{100 a^5}+\frac {\text {Subst}\left (\int \frac {\sinh (3 x)}{\sqrt {x}} \, dx,x,\cosh ^{-1}(a x)\right )}{100 a^5}-\frac {\text {Subst}\left (\int \frac {e^{-x}}{\sqrt {x}} \, dx,x,\cosh ^{-1}(a x)\right )}{25 a^5}+\frac {\text {Subst}\left (\int \frac {e^x}{\sqrt {x}} \, dx,x,\cosh ^{-1}(a x)\right )}{25 a^5}\\ &=-\frac {4 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{25 a^5}-\frac {2 x^2 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{25 a^3}-\frac {3 x^4 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{50 a}+\frac {1}{5} x^5 \cosh ^{-1}(a x)^{3/2}-\frac {3 \text {Subst}\left (\int e^{-5 x^2} \, dx,x,\sqrt {\cosh ^{-1}(a x)}\right )}{1600 a^5}+\frac {3 \text {Subst}\left (\int e^{5 x^2} \, dx,x,\sqrt {\cosh ^{-1}(a x)}\right )}{1600 a^5}-\frac {3 \text {Subst}\left (\int e^{-x^2} \, dx,x,\sqrt {\cosh ^{-1}(a x)}\right )}{800 a^5}+\frac {3 \text {Subst}\left (\int e^{x^2} \, dx,x,\sqrt {\cosh ^{-1}(a x)}\right )}{800 a^5}-\frac {\text {Subst}\left (\int \frac {e^{-3 x}}{\sqrt {x}} \, dx,x,\cosh ^{-1}(a x)\right )}{200 a^5}-\frac {\text {Subst}\left (\int \frac {e^{-x}}{\sqrt {x}} \, dx,x,\cosh ^{-1}(a x)\right )}{200 a^5}+\frac {\text {Subst}\left (\int \frac {e^x}{\sqrt {x}} \, dx,x,\cosh ^{-1}(a x)\right )}{200 a^5}+\frac {\text {Subst}\left (\int \frac {e^{3 x}}{\sqrt {x}} \, dx,x,\cosh ^{-1}(a x)\right )}{200 a^5}-\frac {9 \text {Subst}\left (\int e^{-3 x^2} \, dx,x,\sqrt {\cosh ^{-1}(a x)}\right )}{1600 a^5}+\frac {9 \text {Subst}\left (\int e^{3 x^2} \, dx,x,\sqrt {\cosh ^{-1}(a x)}\right )}{1600 a^5}-\frac {2 \text {Subst}\left (\int e^{-x^2} \, dx,x,\sqrt {\cosh ^{-1}(a x)}\right )}{25 a^5}+\frac {2 \text {Subst}\left (\int e^{x^2} \, dx,x,\sqrt {\cosh ^{-1}(a x)}\right )}{25 a^5}\\ &=-\frac {4 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{25 a^5}-\frac {2 x^2 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{25 a^3}-\frac {3 x^4 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{50 a}+\frac {1}{5} x^5 \cosh ^{-1}(a x)^{3/2}-\frac {67 \sqrt {\pi } \text {erf}\left (\sqrt {\cosh ^{-1}(a x)}\right )}{1600 a^5}-\frac {3 \sqrt {3 \pi } \text {erf}\left (\sqrt {3} \sqrt {\cosh ^{-1}(a x)}\right )}{3200 a^5}-\frac {3 \sqrt {\frac {\pi }{5}} \text {erf}\left (\sqrt {5} \sqrt {\cosh ^{-1}(a x)}\right )}{3200 a^5}+\frac {67 \sqrt {\pi } \text {erfi}\left (\sqrt {\cosh ^{-1}(a x)}\right )}{1600 a^5}+\frac {3 \sqrt {3 \pi } \text {erfi}\left (\sqrt {3} \sqrt {\cosh ^{-1}(a x)}\right )}{3200 a^5}+\frac {3 \sqrt {\frac {\pi }{5}} \text {erfi}\left (\sqrt {5} \sqrt {\cosh ^{-1}(a x)}\right )}{3200 a^5}-\frac {\text {Subst}\left (\int e^{-3 x^2} \, dx,x,\sqrt {\cosh ^{-1}(a x)}\right )}{100 a^5}-\frac {\text {Subst}\left (\int e^{-x^2} \, dx,x,\sqrt {\cosh ^{-1}(a x)}\right )}{100 a^5}+\frac {\text {Subst}\left (\int e^{x^2} \, dx,x,\sqrt {\cosh ^{-1}(a x)}\right )}{100 a^5}+\frac {\text {Subst}\left (\int e^{3 x^2} \, dx,x,\sqrt {\cosh ^{-1}(a x)}\right )}{100 a^5}\\ &=-\frac {4 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{25 a^5}-\frac {2 x^2 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{25 a^3}-\frac {3 x^4 \sqrt {-1+a x} \sqrt {1+a x} \sqrt {\cosh ^{-1}(a x)}}{50 a}+\frac {1}{5} x^5 \cosh ^{-1}(a x)^{3/2}-\frac {3 \sqrt {\pi } \text {erf}\left (\sqrt {\cosh ^{-1}(a x)}\right )}{64 a^5}-\frac {\sqrt {\frac {\pi }{3}} \text {erf}\left (\sqrt {3} \sqrt {\cosh ^{-1}(a x)}\right )}{200 a^5}-\frac {3 \sqrt {3 \pi } \text {erf}\left (\sqrt {3} \sqrt {\cosh ^{-1}(a x)}\right )}{3200 a^5}-\frac {3 \sqrt {\frac {\pi }{5}} \text {erf}\left (\sqrt {5} \sqrt {\cosh ^{-1}(a x)}\right )}{3200 a^5}+\frac {3 \sqrt {\pi } \text {erfi}\left (\sqrt {\cosh ^{-1}(a x)}\right )}{64 a^5}+\frac {\sqrt {\frac {\pi }{3}} \text {erfi}\left (\sqrt {3} \sqrt {\cosh ^{-1}(a x)}\right )}{200 a^5}+\frac {3 \sqrt {3 \pi } \text {erfi}\left (\sqrt {3} \sqrt {\cosh ^{-1}(a x)}\right )}{3200 a^5}+\frac {3 \sqrt {\frac {\pi }{5}} \text {erfi}\left (\sqrt {5} \sqrt {\cosh ^{-1}(a x)}\right )}{3200 a^5}\\ \end {align*}

________________________________________________________________________________________

Mathematica [A]
time = 0.09, size = 152, normalized size = 0.44 \begin {gather*} \frac {\frac {9 \sqrt {5} \sqrt {-\cosh ^{-1}(a x)} \Gamma \left (\frac {5}{2},-5 \cosh ^{-1}(a x)\right )}{\sqrt {\cosh ^{-1}(a x)}}+\frac {125 \sqrt {3} \sqrt {-\cosh ^{-1}(a x)} \Gamma \left (\frac {5}{2},-3 \cosh ^{-1}(a x)\right )}{\sqrt {\cosh ^{-1}(a x)}}+\frac {2250 \sqrt {-\cosh ^{-1}(a x)} \Gamma \left (\frac {5}{2},-\cosh ^{-1}(a x)\right )}{\sqrt {\cosh ^{-1}(a x)}}+2250 \Gamma \left (\frac {5}{2},\cosh ^{-1}(a x)\right )+125 \sqrt {3} \Gamma \left (\frac {5}{2},3 \cosh ^{-1}(a x)\right )+9 \sqrt {5} \Gamma \left (\frac {5}{2},5 \cosh ^{-1}(a x)\right )}{36000 a^5} \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[x^4*ArcCosh[a*x]^(3/2),x]

[Out]

((9*Sqrt[5]*Sqrt[-ArcCosh[a*x]]*Gamma[5/2, -5*ArcCosh[a*x]])/Sqrt[ArcCosh[a*x]] + (125*Sqrt[3]*Sqrt[-ArcCosh[a
*x]]*Gamma[5/2, -3*ArcCosh[a*x]])/Sqrt[ArcCosh[a*x]] + (2250*Sqrt[-ArcCosh[a*x]]*Gamma[5/2, -ArcCosh[a*x]])/Sq
rt[ArcCosh[a*x]] + 2250*Gamma[5/2, ArcCosh[a*x]] + 125*Sqrt[3]*Gamma[5/2, 3*ArcCosh[a*x]] + 9*Sqrt[5]*Gamma[5/
2, 5*ArcCosh[a*x]])/(36000*a^5)

________________________________________________________________________________________

Maple [F]
time = 6.91, size = 0, normalized size = 0.00 \[\int x^{4} \mathrm {arccosh}\left (a x \right )^{\frac {3}{2}}\, dx\]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x^4*arccosh(a*x)^(3/2),x)

[Out]

int(x^4*arccosh(a*x)^(3/2),x)

________________________________________________________________________________________

Maxima [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Failed to integrate} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^4*arccosh(a*x)^(3/2),x, algorithm="maxima")

[Out]

integrate(x^4*arccosh(a*x)^(3/2), x)

________________________________________________________________________________________

Fricas [F(-2)]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Exception raised: TypeError} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^4*arccosh(a*x)^(3/2),x, algorithm="fricas")

[Out]

Exception raised: TypeError >>  Error detected within library code:   integrate: implementation incomplete (co
nstant residues)

________________________________________________________________________________________

Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int x^{4} \operatorname {acosh}^{\frac {3}{2}}{\left (a x \right )}\, dx \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x**4*acosh(a*x)**(3/2),x)

[Out]

Integral(x**4*acosh(a*x)**(3/2), x)

________________________________________________________________________________________

Giac [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^4*arccosh(a*x)^(3/2),x, algorithm="giac")

[Out]

integrate(x^4*arccosh(a*x)^(3/2), x)

________________________________________________________________________________________

Mupad [F]
time = 0.00, size = -1, normalized size = -0.00 \begin {gather*} \int x^4\,{\mathrm {acosh}\left (a\,x\right )}^{3/2} \,d x \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x^4*acosh(a*x)^(3/2),x)

[Out]

int(x^4*acosh(a*x)^(3/2), x)

________________________________________________________________________________________