3.1048 \(\int e^{2 \tanh ^{-1}(a x)} (c-a^2 c x^2)^4 \, dx\)

Optimal. Leaf size=69 \[ -\frac {c^4 (a x+1)^9}{9 a}+\frac {3 c^4 (a x+1)^8}{4 a}-\frac {12 c^4 (a x+1)^7}{7 a}+\frac {4 c^4 (a x+1)^6}{3 a} \]

[Out]

4/3*c^4*(a*x+1)^6/a-12/7*c^4*(a*x+1)^7/a+3/4*c^4*(a*x+1)^8/a-1/9*c^4*(a*x+1)^9/a

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Rubi [A]  time = 0.06, antiderivative size = 69, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, integrand size = 22, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.091, Rules used = {6140, 43} \[ -\frac {c^4 (a x+1)^9}{9 a}+\frac {3 c^4 (a x+1)^8}{4 a}-\frac {12 c^4 (a x+1)^7}{7 a}+\frac {4 c^4 (a x+1)^6}{3 a} \]

Antiderivative was successfully verified.

[In]

Int[E^(2*ArcTanh[a*x])*(c - a^2*c*x^2)^4,x]

[Out]

(4*c^4*(1 + a*x)^6)/(3*a) - (12*c^4*(1 + a*x)^7)/(7*a) + (3*c^4*(1 + a*x)^8)/(4*a) - (c^4*(1 + a*x)^9)/(9*a)

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])

Rule 6140

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

Rubi steps

\begin {align*} \int e^{2 \tanh ^{-1}(a x)} \left (c-a^2 c x^2\right )^4 \, dx &=c^4 \int (1-a x)^3 (1+a x)^5 \, dx\\ &=c^4 \int \left (8 (1+a x)^5-12 (1+a x)^6+6 (1+a x)^7-(1+a x)^8\right ) \, dx\\ &=\frac {4 c^4 (1+a x)^6}{3 a}-\frac {12 c^4 (1+a x)^7}{7 a}+\frac {3 c^4 (1+a x)^8}{4 a}-\frac {c^4 (1+a x)^9}{9 a}\\ \end {align*}

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Mathematica [A]  time = 0.03, size = 39, normalized size = 0.57 \[ -\frac {c^4 (a x+1)^6 \left (28 a^3 x^3-105 a^2 x^2+138 a x-65\right )}{252 a} \]

Antiderivative was successfully verified.

[In]

Integrate[E^(2*ArcTanh[a*x])*(c - a^2*c*x^2)^4,x]

[Out]

-1/252*(c^4*(1 + a*x)^6*(-65 + 138*a*x - 105*a^2*x^2 + 28*a^3*x^3))/a

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fricas [A]  time = 0.58, size = 79, normalized size = 1.14 \[ -\frac {1}{9} \, a^{8} c^{4} x^{9} - \frac {1}{4} \, a^{7} c^{4} x^{8} + \frac {2}{7} \, a^{6} c^{4} x^{7} + a^{5} c^{4} x^{6} - \frac {3}{2} \, a^{3} c^{4} x^{4} - \frac {2}{3} \, a^{2} c^{4} x^{3} + a c^{4} x^{2} + c^{4} x \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a*x+1)^2/(-a^2*x^2+1)*(-a^2*c*x^2+c)^4,x, algorithm="fricas")

[Out]

-1/9*a^8*c^4*x^9 - 1/4*a^7*c^4*x^8 + 2/7*a^6*c^4*x^7 + a^5*c^4*x^6 - 3/2*a^3*c^4*x^4 - 2/3*a^2*c^4*x^3 + a*c^4
*x^2 + c^4*x

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giac [A]  time = 0.31, size = 79, normalized size = 1.14 \[ -\frac {1}{9} \, a^{8} c^{4} x^{9} - \frac {1}{4} \, a^{7} c^{4} x^{8} + \frac {2}{7} \, a^{6} c^{4} x^{7} + a^{5} c^{4} x^{6} - \frac {3}{2} \, a^{3} c^{4} x^{4} - \frac {2}{3} \, a^{2} c^{4} x^{3} + a c^{4} x^{2} + c^{4} x \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a*x+1)^2/(-a^2*x^2+1)*(-a^2*c*x^2+c)^4,x, algorithm="giac")

[Out]

-1/9*a^8*c^4*x^9 - 1/4*a^7*c^4*x^8 + 2/7*a^6*c^4*x^7 + a^5*c^4*x^6 - 3/2*a^3*c^4*x^4 - 2/3*a^2*c^4*x^3 + a*c^4
*x^2 + c^4*x

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maple [A]  time = 0.02, size = 59, normalized size = 0.86 \[ c^{4} \left (-\frac {1}{9} x^{9} a^{8}-\frac {1}{4} a^{7} x^{8}+\frac {2}{7} x^{7} a^{6}+x^{6} a^{5}-\frac {3}{2} x^{4} a^{3}-\frac {2}{3} x^{3} a^{2}+a \,x^{2}+x \right ) \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((a*x+1)^2/(-a^2*x^2+1)*(-a^2*c*x^2+c)^4,x)

[Out]

c^4*(-1/9*x^9*a^8-1/4*a^7*x^8+2/7*x^7*a^6+x^6*a^5-3/2*x^4*a^3-2/3*x^3*a^2+a*x^2+x)

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maxima [A]  time = 0.33, size = 79, normalized size = 1.14 \[ -\frac {1}{9} \, a^{8} c^{4} x^{9} - \frac {1}{4} \, a^{7} c^{4} x^{8} + \frac {2}{7} \, a^{6} c^{4} x^{7} + a^{5} c^{4} x^{6} - \frac {3}{2} \, a^{3} c^{4} x^{4} - \frac {2}{3} \, a^{2} c^{4} x^{3} + a c^{4} x^{2} + c^{4} x \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a*x+1)^2/(-a^2*x^2+1)*(-a^2*c*x^2+c)^4,x, algorithm="maxima")

[Out]

-1/9*a^8*c^4*x^9 - 1/4*a^7*c^4*x^8 + 2/7*a^6*c^4*x^7 + a^5*c^4*x^6 - 3/2*a^3*c^4*x^4 - 2/3*a^2*c^4*x^3 + a*c^4
*x^2 + c^4*x

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mupad [B]  time = 0.04, size = 79, normalized size = 1.14 \[ -\frac {a^8\,c^4\,x^9}{9}-\frac {a^7\,c^4\,x^8}{4}+\frac {2\,a^6\,c^4\,x^7}{7}+a^5\,c^4\,x^6-\frac {3\,a^3\,c^4\,x^4}{2}-\frac {2\,a^2\,c^4\,x^3}{3}+a\,c^4\,x^2+c^4\,x \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(-((c - a^2*c*x^2)^4*(a*x + 1)^2)/(a^2*x^2 - 1),x)

[Out]

c^4*x + a*c^4*x^2 - (2*a^2*c^4*x^3)/3 - (3*a^3*c^4*x^4)/2 + a^5*c^4*x^6 + (2*a^6*c^4*x^7)/7 - (a^7*c^4*x^8)/4
- (a^8*c^4*x^9)/9

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sympy [A]  time = 0.10, size = 87, normalized size = 1.26 \[ - \frac {a^{8} c^{4} x^{9}}{9} - \frac {a^{7} c^{4} x^{8}}{4} + \frac {2 a^{6} c^{4} x^{7}}{7} + a^{5} c^{4} x^{6} - \frac {3 a^{3} c^{4} x^{4}}{2} - \frac {2 a^{2} c^{4} x^{3}}{3} + a c^{4} x^{2} + c^{4} x \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a*x+1)**2/(-a**2*x**2+1)*(-a**2*c*x**2+c)**4,x)

[Out]

-a**8*c**4*x**9/9 - a**7*c**4*x**8/4 + 2*a**6*c**4*x**7/7 + a**5*c**4*x**6 - 3*a**3*c**4*x**4/2 - 2*a**2*c**4*
x**3/3 + a*c**4*x**2 + c**4*x

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