3.242 \(\int \frac{e^{2 \tanh ^{-1}(a x)}}{(c-a c x)^{7/2}} \, dx\)

Optimal. Leaf size=40 \[ \frac{4}{7 a (c-a c x)^{7/2}}-\frac{2}{5 a c (c-a c x)^{5/2}} \]

[Out]

4/(7*a*(c - a*c*x)^(7/2)) - 2/(5*a*c*(c - a*c*x)^(5/2))

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Rubi [A]  time = 0.0517986, antiderivative size = 40, normalized size of antiderivative = 1., number of steps used = 4, number of rules used = 3, integrand size = 20, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.15, Rules used = {6130, 21, 43} \[ \frac{4}{7 a (c-a c x)^{7/2}}-\frac{2}{5 a c (c-a c x)^{5/2}} \]

Antiderivative was successfully verified.

[In]

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

[Out]

4/(7*a*(c - a*c*x)^(7/2)) - 2/(5*a*c*(c - a*c*x)^(5/2))

Rule 6130

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

Rule 21

Int[(u_.)*((a_) + (b_.)*(v_))^(m_.)*((c_) + (d_.)*(v_))^(n_.), x_Symbol] :> Dist[(b/d)^m, Int[u*(c + d*v)^(m +
n), x], x] /; FreeQ[{a, b, c, d, n}, x] && EqQ[b*c - a*d, 0] && IntegerQ[m] && ( !IntegerQ[n] || SimplerQ[c +
d*x, a + b*x])

Rule 43

Int[((a_.) + (b_.)*(x_))^(m_.)*((c_.) + (d_.)*(x_))^(n_.), x_Symbol] :> Int[ExpandIntegrand[(a + b*x)^m*(c + d
*x)^n, x], x] /; FreeQ[{a, b, c, d, n}, x] && NeQ[b*c - a*d, 0] && IGtQ[m, 0] && ( !IntegerQ[n] || (EqQ[c, 0]
&& LeQ[7*m + 4*n + 4, 0]) || LtQ[9*m + 5*(n + 1), 0] || GtQ[m + n + 2, 0])

Rubi steps

\begin{align*} \int \frac{e^{2 \tanh ^{-1}(a x)}}{(c-a c x)^{7/2}} \, dx &=\int \frac{1+a x}{(1-a x) (c-a c x)^{7/2}} \, dx\\ &=c \int \frac{1+a x}{(c-a c x)^{9/2}} \, dx\\ &=c \int \left (\frac{2}{(c-a c x)^{9/2}}-\frac{1}{c (c-a c x)^{7/2}}\right ) \, dx\\ &=\frac{4}{7 a (c-a c x)^{7/2}}-\frac{2}{5 a c (c-a c x)^{5/2}}\\ \end{align*}

Mathematica [A]  time = 0.0524085, size = 34, normalized size = 0.85 \[ \frac{2 (7 a x+3) \sqrt{c-a c x}}{35 a c^4 (a x-1)^4} \]

Antiderivative was successfully verified.

[In]

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

[Out]

(2*(3 + 7*a*x)*Sqrt[c - a*c*x])/(35*a*c^4*(-1 + a*x)^4)

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Maple [A]  time = 0.031, size = 21, normalized size = 0.5 \begin{align*}{\frac{14\,ax+6}{35\,a} \left ( -acx+c \right ) ^{-{\frac{7}{2}}}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

2/35*(7*a*x+3)/(-a*c*x+c)^(7/2)/a

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Maxima [A]  time = 0.954384, size = 35, normalized size = 0.88 \begin{align*} \frac{2 \,{\left (7 \, a c x + 3 \, c\right )}}{35 \,{\left (-a c x + c\right )}^{\frac{7}{2}} a c} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

2/35*(7*a*c*x + 3*c)/((-a*c*x + c)^(7/2)*a*c)

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Fricas [B]  time = 2.15597, size = 139, normalized size = 3.48 \begin{align*} \frac{2 \, \sqrt{-a c x + c}{\left (7 \, a x + 3\right )}}{35 \,{\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 )}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

2/35*sqrt(-a*c*x + c)*(7*a*x + 3)/(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 [A]  time = 54.7369, size = 31, normalized size = 0.78 \begin{align*} \frac{4}{7 a \left (- a c x + c\right )^{\frac{7}{2}}} - \frac{2}{5 a c \left (- a c x + c\right )^{\frac{5}{2}}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

4/(7*a*(-a*c*x + c)**(7/2)) - 2/(5*a*c*(-a*c*x + c)**(5/2))

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Giac [A]  time = 1.16364, size = 49, normalized size = 1.22 \begin{align*} -\frac{2 \,{\left (7 \, a c x + 3 \, c\right )}}{35 \,{\left (a c x - c\right )}^{3} \sqrt{-a c x + c} a c} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

-2/35*(7*a*c*x + 3*c)/((a*c*x - c)^3*sqrt(-a*c*x + c)*a*c)