3.285 \(\int \frac{e^{-\tan ^{-1}(a x)}}{(c+a^2 c x^2)^{5/2}} \, dx\)

Optimal. Leaf size=77 \[ -\frac{3 (1-a x) e^{-\tan ^{-1}(a x)}}{10 a c^2 \sqrt{a^2 c x^2+c}}-\frac{(1-3 a x) e^{-\tan ^{-1}(a x)}}{10 a c \left (a^2 c x^2+c\right )^{3/2}} \]

[Out]

-(1 - 3*a*x)/(10*a*c*E^ArcTan[a*x]*(c + a^2*c*x^2)^(3/2)) - (3*(1 - a*x))/(10*a*c^2*E^ArcTan[a*x]*Sqrt[c + a^2
*c*x^2])

________________________________________________________________________________________

Rubi [A]  time = 0.0798143, antiderivative size = 77, normalized size of antiderivative = 1., number of steps used = 2, number of rules used = 2, integrand size = 23, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.087, Rules used = {5070, 5069} \[ -\frac{3 (1-a x) e^{-\tan ^{-1}(a x)}}{10 a c^2 \sqrt{a^2 c x^2+c}}-\frac{(1-3 a x) e^{-\tan ^{-1}(a x)}}{10 a c \left (a^2 c x^2+c\right )^{3/2}} \]

Antiderivative was successfully verified.

[In]

Int[1/(E^ArcTan[a*x]*(c + a^2*c*x^2)^(5/2)),x]

[Out]

-(1 - 3*a*x)/(10*a*c*E^ArcTan[a*x]*(c + a^2*c*x^2)^(3/2)) - (3*(1 - a*x))/(10*a*c^2*E^ArcTan[a*x]*Sqrt[c + a^2
*c*x^2])

Rule 5070

Int[E^(ArcTan[(a_.)*(x_)]*(n_.))*((c_) + (d_.)*(x_)^2)^(p_), x_Symbol] :> Simp[((n - 2*a*(p + 1)*x)*(c + d*x^2
)^(p + 1)*E^(n*ArcTan[a*x]))/(a*c*(n^2 + 4*(p + 1)^2)), x] + Dist[(2*(p + 1)*(2*p + 3))/(c*(n^2 + 4*(p + 1)^2)
), Int[(c + d*x^2)^(p + 1)*E^(n*ArcTan[a*x]), x], x] /; FreeQ[{a, c, d, n}, x] && EqQ[d, a^2*c] && LtQ[p, -1]
&&  !IntegerQ[I*n] && NeQ[n^2 + 4*(p + 1)^2, 0] && IntegerQ[2*p]

Rule 5069

Int[E^(ArcTan[(a_.)*(x_)]*(n_.))/((c_) + (d_.)*(x_)^2)^(3/2), x_Symbol] :> Simp[((n + a*x)*E^(n*ArcTan[a*x]))/
(a*c*(n^2 + 1)*Sqrt[c + d*x^2]), x] /; FreeQ[{a, c, d, n}, x] && EqQ[d, a^2*c] &&  !IntegerQ[I*n]

Rubi steps

\begin{align*} \int \frac{e^{-\tan ^{-1}(a x)}}{\left (c+a^2 c x^2\right )^{5/2}} \, dx &=-\frac{e^{-\tan ^{-1}(a x)} (1-3 a x)}{10 a c \left (c+a^2 c x^2\right )^{3/2}}+\frac{3 \int \frac{e^{-\tan ^{-1}(a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx}{5 c}\\ &=-\frac{e^{-\tan ^{-1}(a x)} (1-3 a x)}{10 a c \left (c+a^2 c x^2\right )^{3/2}}-\frac{3 e^{-\tan ^{-1}(a x)} (1-a x)}{10 a c^2 \sqrt{c+a^2 c x^2}}\\ \end{align*}

Mathematica [A]  time = 0.0419894, size = 62, normalized size = 0.81 \[ \frac{\left (3 a^3 x^3-3 a^2 x^2+6 a x-4\right ) e^{-\tan ^{-1}(a x)}}{10 c^2 \left (a^3 x^2+a\right ) \sqrt{a^2 c x^2+c}} \]

Antiderivative was successfully verified.

[In]

Integrate[1/(E^ArcTan[a*x]*(c + a^2*c*x^2)^(5/2)),x]

[Out]

(-4 + 6*a*x - 3*a^2*x^2 + 3*a^3*x^3)/(10*c^2*E^ArcTan[a*x]*(a + a^3*x^2)*Sqrt[c + a^2*c*x^2])

________________________________________________________________________________________

Maple [A]  time = 0.036, size = 56, normalized size = 0.7 \begin{align*}{\frac{ \left ({a}^{2}{x}^{2}+1 \right ) \left ( 3\,{a}^{3}{x}^{3}-3\,{a}^{2}{x}^{2}+6\,ax-4 \right ) }{10\,a{{\rm e}^{\arctan \left ( ax \right ) }}} \left ({a}^{2}c{x}^{2}+c \right ) ^{-{\frac{5}{2}}}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/exp(arctan(a*x))/(a^2*c*x^2+c)^(5/2),x)

[Out]

1/10*(a^2*x^2+1)*(3*a^3*x^3-3*a^2*x^2+6*a*x-4)/a/exp(arctan(a*x))/(a^2*c*x^2+c)^(5/2)

________________________________________________________________________________________

Maxima [F]  time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{e^{\left (-\arctan \left (a x\right )\right )}}{{\left (a^{2} c x^{2} + c\right )}^{\frac{5}{2}}}\,{d x} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/exp(arctan(a*x))/(a^2*c*x^2+c)^(5/2),x, algorithm="maxima")

[Out]

integrate(e^(-arctan(a*x))/(a^2*c*x^2 + c)^(5/2), x)

________________________________________________________________________________________

Fricas [A]  time = 2.02203, size = 158, normalized size = 2.05 \begin{align*} \frac{{\left (3 \, a^{3} x^{3} - 3 \, a^{2} x^{2} + 6 \, a x - 4\right )} \sqrt{a^{2} c x^{2} + c} e^{\left (-\arctan \left (a x\right )\right )}}{10 \,{\left (a^{5} c^{3} x^{4} + 2 \, a^{3} c^{3} x^{2} + a c^{3}\right )}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/exp(arctan(a*x))/(a^2*c*x^2+c)^(5/2),x, algorithm="fricas")

[Out]

1/10*(3*a^3*x^3 - 3*a^2*x^2 + 6*a*x - 4)*sqrt(a^2*c*x^2 + c)*e^(-arctan(a*x))/(a^5*c^3*x^4 + 2*a^3*c^3*x^2 + a
*c^3)

________________________________________________________________________________________

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/exp(atan(a*x))/(a**2*c*x**2+c)**(5/2),x)

[Out]

Timed out

________________________________________________________________________________________

Giac [F]  time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{e^{\left (-\arctan \left (a x\right )\right )}}{{\left (a^{2} c x^{2} + c\right )}^{\frac{5}{2}}}\,{d x} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/exp(arctan(a*x))/(a^2*c*x^2+c)^(5/2),x, algorithm="giac")

[Out]

integrate(e^(-arctan(a*x))/(a^2*c*x^2 + c)^(5/2), x)