### 3.234 $$\int \frac{e^{\coth ^{-1}(a x)}}{(c-a c x)^{7/2}} \, dx$$

Optimal. Leaf size=250 $\frac{a^4 x^3 \left (1-\frac{1}{a x}\right )^{7/2} \left (\frac{1}{a x}+1\right )^{3/2}}{16 \left (a-\frac{1}{x}\right )^2 (c-a c x)^{7/2}}-\frac{a^4 x^2 \left (1-\frac{1}{a x}\right )^{7/2} \left (\frac{1}{a x}+1\right )^{3/2}}{6 \left (a-\frac{1}{x}\right )^3 (c-a c x)^{7/2}}-\frac{a^3 x^3 \left (1-\frac{1}{a x}\right )^{7/2} \sqrt{\frac{1}{a x}+1}}{32 \left (a-\frac{1}{x}\right ) (c-a c x)^{7/2}}-\frac{a^{5/2} \left (1-\frac{1}{a x}\right )^{7/2} \tanh ^{-1}\left (\frac{\sqrt{2} \sqrt{\frac{1}{x}}}{\sqrt{a} \sqrt{\frac{1}{a x}+1}}\right )}{32 \sqrt{2} \left (\frac{1}{x}\right )^{7/2} (c-a c x)^{7/2}}$

[Out]

-(a^4*(1 - 1/(a*x))^(7/2)*(1 + 1/(a*x))^(3/2)*x^2)/(6*(a - x^(-1))^3*(c - a*c*x)^(7/2)) - (a^3*(1 - 1/(a*x))^(
7/2)*Sqrt[1 + 1/(a*x)]*x^3)/(32*(a - x^(-1))*(c - a*c*x)^(7/2)) + (a^4*(1 - 1/(a*x))^(7/2)*(1 + 1/(a*x))^(3/2)
*x^3)/(16*(a - x^(-1))^2*(c - a*c*x)^(7/2)) - (a^(5/2)*(1 - 1/(a*x))^(7/2)*ArcTanh[(Sqrt[2]*Sqrt[x^(-1)])/(Sqr
t[a]*Sqrt[1 + 1/(a*x)])])/(32*Sqrt[2]*(x^(-1))^(7/2)*(c - a*c*x)^(7/2))

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Rubi [A]  time = 0.22085, antiderivative size = 250, normalized size of antiderivative = 1., number of steps used = 7, number of rules used = 5, integrand size = 18, $$\frac{\text{number of rules}}{\text{integrand size}}$$ = 0.278, Rules used = {6176, 6181, 94, 93, 206} $\frac{a^4 x^3 \left (1-\frac{1}{a x}\right )^{7/2} \left (\frac{1}{a x}+1\right )^{3/2}}{16 \left (a-\frac{1}{x}\right )^2 (c-a c x)^{7/2}}-\frac{a^4 x^2 \left (1-\frac{1}{a x}\right )^{7/2} \left (\frac{1}{a x}+1\right )^{3/2}}{6 \left (a-\frac{1}{x}\right )^3 (c-a c x)^{7/2}}-\frac{a^3 x^3 \left (1-\frac{1}{a x}\right )^{7/2} \sqrt{\frac{1}{a x}+1}}{32 \left (a-\frac{1}{x}\right ) (c-a c x)^{7/2}}-\frac{a^{5/2} \left (1-\frac{1}{a x}\right )^{7/2} \tanh ^{-1}\left (\frac{\sqrt{2} \sqrt{\frac{1}{x}}}{\sqrt{a} \sqrt{\frac{1}{a x}+1}}\right )}{32 \sqrt{2} \left (\frac{1}{x}\right )^{7/2} (c-a c x)^{7/2}}$

Antiderivative was successfully veriﬁed.

[In]

Int[E^ArcCoth[a*x]/(c - a*c*x)^(7/2),x]

[Out]

-(a^4*(1 - 1/(a*x))^(7/2)*(1 + 1/(a*x))^(3/2)*x^2)/(6*(a - x^(-1))^3*(c - a*c*x)^(7/2)) - (a^3*(1 - 1/(a*x))^(
7/2)*Sqrt[1 + 1/(a*x)]*x^3)/(32*(a - x^(-1))*(c - a*c*x)^(7/2)) + (a^4*(1 - 1/(a*x))^(7/2)*(1 + 1/(a*x))^(3/2)
*x^3)/(16*(a - x^(-1))^2*(c - a*c*x)^(7/2)) - (a^(5/2)*(1 - 1/(a*x))^(7/2)*ArcTanh[(Sqrt[2]*Sqrt[x^(-1)])/(Sqr
t[a]*Sqrt[1 + 1/(a*x)])])/(32*Sqrt[2]*(x^(-1))^(7/2)*(c - a*c*x)^(7/2))

Rule 6176

Int[E^(ArcCoth[(a_.)*(x_)]*(n_.))*(u_.)*((c_) + (d_.)*(x_))^(p_), x_Symbol] :> Dist[(c + d*x)^p/(x^p*(1 + c/(d
*x))^p), Int[u*x^p*(1 + c/(d*x))^p*E^(n*ArcCoth[a*x]), x], x] /; FreeQ[{a, c, d, n, p}, x] && EqQ[a^2*c^2 - d^
2, 0] &&  !IntegerQ[n/2] &&  !IntegerQ[p]

Rule 6181

Int[E^(ArcCoth[(a_.)*(x_)]*(n_.))*((c_) + (d_.)/(x_))^(p_.)*(x_)^(m_), x_Symbol] :> -Dist[c^p*x^m*(1/x)^m, Sub
st[Int[((1 + (d*x)/c)^p*(1 + x/a)^(n/2))/(x^(m + 2)*(1 - x/a)^(n/2)), x], x, 1/x], x] /; FreeQ[{a, c, d, m, n,
p}, x] && EqQ[c^2 - a^2*d^2, 0] &&  !IntegerQ[n/2] && (IntegerQ[p] || GtQ[c, 0]) &&  !IntegerQ[m]

Rule 94

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

Rule 93

Int[(((a_.) + (b_.)*(x_))^(m_)*((c_.) + (d_.)*(x_))^(n_))/((e_.) + (f_.)*(x_)), x_Symbol] :> With[{q = Denomin
ator[m]}, Dist[q, Subst[Int[x^(q*(m + 1) - 1)/(b*e - a*f - (d*e - c*f)*x^q), x], x, (a + b*x)^(1/q)/(c + d*x)^
(1/q)], x]] /; FreeQ[{a, b, c, d, e, f}, x] && EqQ[m + n + 1, 0] && RationalQ[n] && LtQ[-1, m, 0] && SimplerQ[
a + b*x, c + d*x]

Rule 206

Int[((a_) + (b_.)*(x_)^2)^(-1), x_Symbol] :> Simp[(1*ArcTanh[(Rt[-b, 2]*x)/Rt[a, 2]])/(Rt[a, 2]*Rt[-b, 2]), x]
/; FreeQ[{a, b}, x] && NegQ[a/b] && (GtQ[a, 0] || LtQ[b, 0])

Rubi steps

\begin{align*} \int \frac{e^{\coth ^{-1}(a x)}}{(c-a c x)^{7/2}} \, dx &=\frac{\left (\left (1-\frac{1}{a x}\right )^{7/2} x^{7/2}\right ) \int \frac{e^{\coth ^{-1}(a x)}}{\left (1-\frac{1}{a x}\right )^{7/2} x^{7/2}} \, dx}{(c-a c x)^{7/2}}\\ &=-\frac{\left (1-\frac{1}{a x}\right )^{7/2} \operatorname{Subst}\left (\int \frac{x^{3/2} \sqrt{1+\frac{x}{a}}}{\left (1-\frac{x}{a}\right )^4} \, dx,x,\frac{1}{x}\right )}{\left (\frac{1}{x}\right )^{7/2} (c-a c x)^{7/2}}\\ &=-\frac{a^4 \left (1-\frac{1}{a x}\right )^{7/2} \left (1+\frac{1}{a x}\right )^{3/2} x^2}{6 \left (a-\frac{1}{x}\right )^3 (c-a c x)^{7/2}}+\frac{\left (a \left (1-\frac{1}{a x}\right )^{7/2}\right ) \operatorname{Subst}\left (\int \frac{\sqrt{x} \sqrt{1+\frac{x}{a}}}{\left (1-\frac{x}{a}\right )^3} \, dx,x,\frac{1}{x}\right )}{4 \left (\frac{1}{x}\right )^{7/2} (c-a c x)^{7/2}}\\ &=-\frac{a^4 \left (1-\frac{1}{a x}\right )^{7/2} \left (1+\frac{1}{a x}\right )^{3/2} x^2}{6 \left (a-\frac{1}{x}\right )^3 (c-a c x)^{7/2}}+\frac{a^4 \left (1-\frac{1}{a x}\right )^{7/2} \left (1+\frac{1}{a x}\right )^{3/2} x^3}{16 \left (a-\frac{1}{x}\right )^2 (c-a c x)^{7/2}}-\frac{\left (a^2 \left (1-\frac{1}{a x}\right )^{7/2}\right ) \operatorname{Subst}\left (\int \frac{\sqrt{1+\frac{x}{a}}}{\sqrt{x} \left (1-\frac{x}{a}\right )^2} \, dx,x,\frac{1}{x}\right )}{32 \left (\frac{1}{x}\right )^{7/2} (c-a c x)^{7/2}}\\ &=-\frac{a^4 \left (1-\frac{1}{a x}\right )^{7/2} \left (1+\frac{1}{a x}\right )^{3/2} x^2}{6 \left (a-\frac{1}{x}\right )^3 (c-a c x)^{7/2}}-\frac{a^3 \left (1-\frac{1}{a x}\right )^{7/2} \sqrt{1+\frac{1}{a x}} x^3}{32 \left (a-\frac{1}{x}\right ) (c-a c x)^{7/2}}+\frac{a^4 \left (1-\frac{1}{a x}\right )^{7/2} \left (1+\frac{1}{a x}\right )^{3/2} x^3}{16 \left (a-\frac{1}{x}\right )^2 (c-a c x)^{7/2}}-\frac{\left (a^2 \left (1-\frac{1}{a x}\right )^{7/2}\right ) \operatorname{Subst}\left (\int \frac{1}{\sqrt{x} \left (1-\frac{x}{a}\right ) \sqrt{1+\frac{x}{a}}} \, dx,x,\frac{1}{x}\right )}{64 \left (\frac{1}{x}\right )^{7/2} (c-a c x)^{7/2}}\\ &=-\frac{a^4 \left (1-\frac{1}{a x}\right )^{7/2} \left (1+\frac{1}{a x}\right )^{3/2} x^2}{6 \left (a-\frac{1}{x}\right )^3 (c-a c x)^{7/2}}-\frac{a^3 \left (1-\frac{1}{a x}\right )^{7/2} \sqrt{1+\frac{1}{a x}} x^3}{32 \left (a-\frac{1}{x}\right ) (c-a c x)^{7/2}}+\frac{a^4 \left (1-\frac{1}{a x}\right )^{7/2} \left (1+\frac{1}{a x}\right )^{3/2} x^3}{16 \left (a-\frac{1}{x}\right )^2 (c-a c x)^{7/2}}-\frac{\left (a^2 \left (1-\frac{1}{a x}\right )^{7/2}\right ) \operatorname{Subst}\left (\int \frac{1}{1-\frac{2 x^2}{a}} \, dx,x,\frac{\sqrt{\frac{1}{x}}}{\sqrt{1+\frac{1}{a x}}}\right )}{32 \left (\frac{1}{x}\right )^{7/2} (c-a c x)^{7/2}}\\ &=-\frac{a^4 \left (1-\frac{1}{a x}\right )^{7/2} \left (1+\frac{1}{a x}\right )^{3/2} x^2}{6 \left (a-\frac{1}{x}\right )^3 (c-a c x)^{7/2}}-\frac{a^3 \left (1-\frac{1}{a x}\right )^{7/2} \sqrt{1+\frac{1}{a x}} x^3}{32 \left (a-\frac{1}{x}\right ) (c-a c x)^{7/2}}+\frac{a^4 \left (1-\frac{1}{a x}\right )^{7/2} \left (1+\frac{1}{a x}\right )^{3/2} x^3}{16 \left (a-\frac{1}{x}\right )^2 (c-a c x)^{7/2}}-\frac{a^{5/2} \left (1-\frac{1}{a x}\right )^{7/2} \tanh ^{-1}\left (\frac{\sqrt{2} \sqrt{\frac{1}{x}}}{\sqrt{a} \sqrt{1+\frac{1}{a x}}}\right )}{32 \sqrt{2} \left (\frac{1}{x}\right )^{7/2} (c-a c x)^{7/2}}\\ \end{align*}

Mathematica [A]  time = 0.15543, size = 139, normalized size = 0.56 $\frac{\sqrt{1-\frac{1}{a x}} \left (\frac{2 \sqrt{a} \sqrt{\frac{1}{a x}+1} \left (-3 a^2 x^2+10 a x+25\right )}{\sqrt{\frac{1}{x}}}+3 \sqrt{2} (a x-1)^3 \tanh ^{-1}\left (\frac{\sqrt{2} \sqrt{\frac{1}{x}}}{\sqrt{a} \sqrt{\frac{1}{a x}+1}}\right )\right )}{192 \sqrt{a} c^3 \sqrt{\frac{1}{x}} (a x-1)^3 \sqrt{c-a c x}}$

Antiderivative was successfully veriﬁed.

[In]

Integrate[E^ArcCoth[a*x]/(c - a*c*x)^(7/2),x]

[Out]

(Sqrt[1 - 1/(a*x)]*((2*Sqrt[a]*Sqrt[1 + 1/(a*x)]*(25 + 10*a*x - 3*a^2*x^2))/Sqrt[x^(-1)] + 3*Sqrt[2]*(-1 + a*x
)^3*ArcTanh[(Sqrt[2]*Sqrt[x^(-1)])/(Sqrt[a]*Sqrt[1 + 1/(a*x)])]))/(192*Sqrt[a]*c^3*Sqrt[x^(-1)]*(-1 + a*x)^3*S
qrt[c - a*c*x])

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Maple [A]  time = 0.141, size = 219, normalized size = 0.9 \begin{align*} -{\frac{1}{192\, \left ( ax-1 \right ) ^{3}a}\sqrt{-c \left ( ax-1 \right ) } \left ( 3\,\sqrt{2}\arctan \left ( 1/2\,{\frac{\sqrt{-c \left ( ax+1 \right ) }\sqrt{2}}{\sqrt{c}}} \right ){x}^{3}{a}^{3}c-9\,\sqrt{2}\arctan \left ( 1/2\,{\frac{\sqrt{-c \left ( ax+1 \right ) }\sqrt{2}}{\sqrt{c}}} \right ){x}^{2}{a}^{2}c-6\,{x}^{2}{a}^{2}\sqrt{-c \left ( ax+1 \right ) }\sqrt{c}+9\,\sqrt{2}\arctan \left ( 1/2\,{\frac{\sqrt{-c \left ( ax+1 \right ) }\sqrt{2}}{\sqrt{c}}} \right ) xac+20\,xa\sqrt{-c \left ( ax+1 \right ) }\sqrt{c}-3\,\sqrt{2}\arctan \left ( 1/2\,{\frac{\sqrt{-c \left ( ax+1 \right ) }\sqrt{2}}{\sqrt{c}}} \right ) c+50\,\sqrt{-c \left ( ax+1 \right ) }\sqrt{c} \right ){\frac{1}{\sqrt{{\frac{ax-1}{ax+1}}}}}{c}^{-{\frac{9}{2}}}{\frac{1}{\sqrt{-c \left ( ax+1 \right ) }}}} \end{align*}

Veriﬁcation of antiderivative is not currently implemented for this CAS.

[In]

int(1/((a*x-1)/(a*x+1))^(1/2)/(-a*c*x+c)^(7/2),x)

[Out]

-1/192/((a*x-1)/(a*x+1))^(1/2)/(a*x-1)^3*(-c*(a*x-1))^(1/2)/c^(9/2)*(3*2^(1/2)*arctan(1/2*(-c*(a*x+1))^(1/2)*2
^(1/2)/c^(1/2))*x^3*a^3*c-9*2^(1/2)*arctan(1/2*(-c*(a*x+1))^(1/2)*2^(1/2)/c^(1/2))*x^2*a^2*c-6*x^2*a^2*(-c*(a*
x+1))^(1/2)*c^(1/2)+9*2^(1/2)*arctan(1/2*(-c*(a*x+1))^(1/2)*2^(1/2)/c^(1/2))*x*a*c+20*x*a*(-c*(a*x+1))^(1/2)*c
^(1/2)-3*2^(1/2)*arctan(1/2*(-c*(a*x+1))^(1/2)*2^(1/2)/c^(1/2))*c+50*(-c*(a*x+1))^(1/2)*c^(1/2))/(-c*(a*x+1))^
(1/2)/a

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Maxima [F]  time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{1}{{\left (-a c x + c\right )}^{\frac{7}{2}} \sqrt{\frac{a x - 1}{a x + 1}}}\,{d x} \end{align*}

Veriﬁcation of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/((a*x-1)/(a*x+1))^(1/2)/(-a*c*x+c)^(7/2),x, algorithm="maxima")

[Out]

integrate(1/((-a*c*x + c)^(7/2)*sqrt((a*x - 1)/(a*x + 1))), x)

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Fricas [A]  time = 1.63357, size = 902, normalized size = 3.61 \begin{align*} \left [-\frac{3 \, \sqrt{2}{\left (a^{4} x^{4} - 4 \, a^{3} x^{3} + 6 \, a^{2} x^{2} - 4 \, a x + 1\right )} \sqrt{-c} \log \left (-\frac{a^{2} c x^{2} + 2 \, a c x - 2 \, \sqrt{2} \sqrt{-a c x + c}{\left (a x + 1\right )} \sqrt{-c} \sqrt{\frac{a x - 1}{a x + 1}} - 3 \, c}{a^{2} x^{2} - 2 \, a x + 1}\right ) - 4 \,{\left (3 \, a^{3} x^{3} - 7 \, a^{2} x^{2} - 35 \, a x - 25\right )} \sqrt{-a c x + c} \sqrt{\frac{a x - 1}{a x + 1}}}{384 \,{\left (a^{5} c^{4} x^{4} - 4 \, a^{4} c^{4} x^{3} + 6 \, a^{3} c^{4} x^{2} - 4 \, a^{2} c^{4} x + a c^{4}\right )}}, -\frac{3 \, \sqrt{2}{\left (a^{4} x^{4} - 4 \, a^{3} x^{3} + 6 \, a^{2} x^{2} - 4 \, a x + 1\right )} \sqrt{c} \arctan \left (\frac{\sqrt{2} \sqrt{-a c x + c} \sqrt{c} \sqrt{\frac{a x - 1}{a x + 1}}}{a c x - c}\right ) - 2 \,{\left (3 \, a^{3} x^{3} - 7 \, a^{2} x^{2} - 35 \, a x - 25\right )} \sqrt{-a c x + c} \sqrt{\frac{a x - 1}{a x + 1}}}{192 \,{\left (a^{5} c^{4} x^{4} - 4 \, a^{4} c^{4} x^{3} + 6 \, a^{3} c^{4} x^{2} - 4 \, a^{2} c^{4} x + a c^{4}\right )}}\right ] \end{align*}

Veriﬁcation of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/((a*x-1)/(a*x+1))^(1/2)/(-a*c*x+c)^(7/2),x, algorithm="fricas")

[Out]

[-1/384*(3*sqrt(2)*(a^4*x^4 - 4*a^3*x^3 + 6*a^2*x^2 - 4*a*x + 1)*sqrt(-c)*log(-(a^2*c*x^2 + 2*a*c*x - 2*sqrt(2
)*sqrt(-a*c*x + c)*(a*x + 1)*sqrt(-c)*sqrt((a*x - 1)/(a*x + 1)) - 3*c)/(a^2*x^2 - 2*a*x + 1)) - 4*(3*a^3*x^3 -
7*a^2*x^2 - 35*a*x - 25)*sqrt(-a*c*x + c)*sqrt((a*x - 1)/(a*x + 1)))/(a^5*c^4*x^4 - 4*a^4*c^4*x^3 + 6*a^3*c^4
*x^2 - 4*a^2*c^4*x + a*c^4), -1/192*(3*sqrt(2)*(a^4*x^4 - 4*a^3*x^3 + 6*a^2*x^2 - 4*a*x + 1)*sqrt(c)*arctan(sq
rt(2)*sqrt(-a*c*x + c)*sqrt(c)*sqrt((a*x - 1)/(a*x + 1))/(a*c*x - c)) - 2*(3*a^3*x^3 - 7*a^2*x^2 - 35*a*x - 25
)*sqrt(-a*c*x + c)*sqrt((a*x - 1)/(a*x + 1)))/(a^5*c^4*x^4 - 4*a^4*c^4*x^3 + 6*a^3*c^4*x^2 - 4*a^2*c^4*x + a*c
^4)]

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Sympy [F(-1)]  time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}

Veriﬁcation of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/((a*x-1)/(a*x+1))**(1/2)/(-a*c*x+c)**(7/2),x)

[Out]

Timed out

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Giac [A]  time = 1.21493, size = 157, normalized size = 0.63 \begin{align*} -\frac{\frac{3 \, \sqrt{2} \arctan \left (\frac{\sqrt{2} \sqrt{-a c x - c}}{2 \, \sqrt{c}}\right )}{c^{\frac{5}{2}}} - \frac{2 \,{\left (3 \,{\left (a c x + c\right )}^{2} \sqrt{-a c x - c} + 16 \,{\left (-a c x - c\right )}^{\frac{3}{2}} c - 12 \, \sqrt{-a c x - c} c^{2}\right )}}{{\left (a c x - c\right )}^{3} c^{2}}}{192 \, a c \mathrm{sgn}\left (-a c x - c\right )} \end{align*}

Veriﬁcation of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/((a*x-1)/(a*x+1))^(1/2)/(-a*c*x+c)^(7/2),x, algorithm="giac")

[Out]

-1/192*(3*sqrt(2)*arctan(1/2*sqrt(2)*sqrt(-a*c*x - c)/sqrt(c))/c^(5/2) - 2*(3*(a*c*x + c)^2*sqrt(-a*c*x - c) +
16*(-a*c*x - c)^(3/2)*c - 12*sqrt(-a*c*x - c)*c^2)/((a*c*x - c)^3*c^2))/(a*c*sgn(-a*c*x - c))