3.80 \(\int \frac{(e x)^{-1+2 n}}{a+b \text{sech}(c+d x^n)} \, dx\)

Optimal. Leaf size=307 \[ -\frac{b x^{-2 n} (e x)^{2 n} \text{PolyLog}\left (2,-\frac{a e^{c+d x^n}}{b-\sqrt{b^2-a^2}}\right )}{a d^2 e n \sqrt{b^2-a^2}}+\frac{b x^{-2 n} (e x)^{2 n} \text{PolyLog}\left (2,-\frac{a e^{c+d x^n}}{\sqrt{b^2-a^2}+b}\right )}{a d^2 e n \sqrt{b^2-a^2}}-\frac{b x^{-n} (e x)^{2 n} \log \left (\frac{a e^{c+d x^n}}{b-\sqrt{b^2-a^2}}+1\right )}{a d e n \sqrt{b^2-a^2}}+\frac{b x^{-n} (e x)^{2 n} \log \left (\frac{a e^{c+d x^n}}{\sqrt{b^2-a^2}+b}+1\right )}{a d e n \sqrt{b^2-a^2}}+\frac{(e x)^{2 n}}{2 a e n} \]

[Out]

(e*x)^(2*n)/(2*a*e*n) - (b*(e*x)^(2*n)*Log[1 + (a*E^(c + d*x^n))/(b - Sqrt[-a^2 + b^2])])/(a*Sqrt[-a^2 + b^2]*
d*e*n*x^n) + (b*(e*x)^(2*n)*Log[1 + (a*E^(c + d*x^n))/(b + Sqrt[-a^2 + b^2])])/(a*Sqrt[-a^2 + b^2]*d*e*n*x^n)
- (b*(e*x)^(2*n)*PolyLog[2, -((a*E^(c + d*x^n))/(b - Sqrt[-a^2 + b^2]))])/(a*Sqrt[-a^2 + b^2]*d^2*e*n*x^(2*n))
+ (b*(e*x)^(2*n)*PolyLog[2, -((a*E^(c + d*x^n))/(b + Sqrt[-a^2 + b^2]))])/(a*Sqrt[-a^2 + b^2]*d^2*e*n*x^(2*n)
)

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Rubi [A]  time = 0.564444, antiderivative size = 307, normalized size of antiderivative = 1., number of steps used = 12, number of rules used = 8, integrand size = 24, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.333, Rules used = {5440, 5436, 4191, 3320, 2264, 2190, 2279, 2391} \[ -\frac{b x^{-2 n} (e x)^{2 n} \text{PolyLog}\left (2,-\frac{a e^{c+d x^n}}{b-\sqrt{b^2-a^2}}\right )}{a d^2 e n \sqrt{b^2-a^2}}+\frac{b x^{-2 n} (e x)^{2 n} \text{PolyLog}\left (2,-\frac{a e^{c+d x^n}}{\sqrt{b^2-a^2}+b}\right )}{a d^2 e n \sqrt{b^2-a^2}}-\frac{b x^{-n} (e x)^{2 n} \log \left (\frac{a e^{c+d x^n}}{b-\sqrt{b^2-a^2}}+1\right )}{a d e n \sqrt{b^2-a^2}}+\frac{b x^{-n} (e x)^{2 n} \log \left (\frac{a e^{c+d x^n}}{\sqrt{b^2-a^2}+b}+1\right )}{a d e n \sqrt{b^2-a^2}}+\frac{(e x)^{2 n}}{2 a e n} \]

Antiderivative was successfully verified.

[In]

Int[(e*x)^(-1 + 2*n)/(a + b*Sech[c + d*x^n]),x]

[Out]

(e*x)^(2*n)/(2*a*e*n) - (b*(e*x)^(2*n)*Log[1 + (a*E^(c + d*x^n))/(b - Sqrt[-a^2 + b^2])])/(a*Sqrt[-a^2 + b^2]*
d*e*n*x^n) + (b*(e*x)^(2*n)*Log[1 + (a*E^(c + d*x^n))/(b + Sqrt[-a^2 + b^2])])/(a*Sqrt[-a^2 + b^2]*d*e*n*x^n)
- (b*(e*x)^(2*n)*PolyLog[2, -((a*E^(c + d*x^n))/(b - Sqrt[-a^2 + b^2]))])/(a*Sqrt[-a^2 + b^2]*d^2*e*n*x^(2*n))
+ (b*(e*x)^(2*n)*PolyLog[2, -((a*E^(c + d*x^n))/(b + Sqrt[-a^2 + b^2]))])/(a*Sqrt[-a^2 + b^2]*d^2*e*n*x^(2*n)
)

Rule 5440

Int[((e_)*(x_))^(m_.)*((a_.) + (b_.)*Sech[(c_.) + (d_.)*(x_)^(n_)])^(p_.), x_Symbol] :> Dist[(e^IntPart[m]*(e*
x)^FracPart[m])/x^FracPart[m], Int[x^m*(a + b*Sech[c + d*x^n])^p, x], x] /; FreeQ[{a, b, c, d, e, m, n, p}, x]

Rule 5436

Int[(x_)^(m_.)*((a_.) + (b_.)*Sech[(c_.) + (d_.)*(x_)^(n_)])^(p_.), x_Symbol] :> Dist[1/n, Subst[Int[x^(Simpli
fy[(m + 1)/n] - 1)*(a + b*Sech[c + d*x])^p, x], x, x^n], x] /; FreeQ[{a, b, c, d, m, n, p}, x] && IGtQ[Simplif
y[(m + 1)/n], 0] && IntegerQ[p]

Rule 4191

Int[(csc[(e_.) + (f_.)*(x_)]*(b_.) + (a_))^(n_.)*((c_.) + (d_.)*(x_))^(m_.), x_Symbol] :> Int[ExpandIntegrand[
(c + d*x)^m, 1/(Sin[e + f*x]^n/(b + a*Sin[e + f*x])^n), x], x] /; FreeQ[{a, b, c, d, e, f}, x] && ILtQ[n, 0] &
& IGtQ[m, 0]

Rule 3320

Int[((c_.) + (d_.)*(x_))^(m_.)/((a_) + (b_.)*sin[(e_.) + Pi*(k_.) + (Complex[0, fz_])*(f_.)*(x_)]), x_Symbol]
:> Dist[2, Int[((c + d*x)^m*E^(-(I*e) + f*fz*x))/(E^(I*Pi*(k - 1/2))*(b + (2*a*E^(-(I*e) + f*fz*x))/E^(I*Pi*(k
- 1/2)) - (b*E^(2*(-(I*e) + f*fz*x)))/E^(2*I*k*Pi))), x], x] /; FreeQ[{a, b, c, d, e, f, fz}, x] && IntegerQ[
2*k] && NeQ[a^2 - b^2, 0] && IGtQ[m, 0]

Rule 2264

Int[((F_)^(u_)*((f_.) + (g_.)*(x_))^(m_.))/((a_.) + (b_.)*(F_)^(u_) + (c_.)*(F_)^(v_)), x_Symbol] :> With[{q =
Rt[b^2 - 4*a*c, 2]}, Dist[(2*c)/q, Int[((f + g*x)^m*F^u)/(b - q + 2*c*F^u), x], x] - Dist[(2*c)/q, Int[((f +
g*x)^m*F^u)/(b + q + 2*c*F^u), x], x]] /; FreeQ[{F, a, b, c, f, g}, x] && EqQ[v, 2*u] && LinearQ[u, x] && NeQ[
b^2 - 4*a*c, 0] && IGtQ[m, 0]

Rule 2190

Int[(((F_)^((g_.)*((e_.) + (f_.)*(x_))))^(n_.)*((c_.) + (d_.)*(x_))^(m_.))/((a_) + (b_.)*((F_)^((g_.)*((e_.) +
(f_.)*(x_))))^(n_.)), x_Symbol] :> Simp[((c + d*x)^m*Log[1 + (b*(F^(g*(e + f*x)))^n)/a])/(b*f*g*n*Log[F]), x]
- Dist[(d*m)/(b*f*g*n*Log[F]), Int[(c + d*x)^(m - 1)*Log[1 + (b*(F^(g*(e + f*x)))^n)/a], x], x] /; FreeQ[{F,
a, b, c, d, e, f, g, n}, x] && IGtQ[m, 0]

Rule 2279

Int[Log[(a_) + (b_.)*((F_)^((e_.)*((c_.) + (d_.)*(x_))))^(n_.)], x_Symbol] :> Dist[1/(d*e*n*Log[F]), Subst[Int
[Log[a + b*x]/x, x], x, (F^(e*(c + d*x)))^n], x] /; FreeQ[{F, a, b, c, d, e, n}, x] && GtQ[a, 0]

Rule 2391

Int[Log[(c_.)*((d_) + (e_.)*(x_)^(n_.))]/(x_), x_Symbol] :> -Simp[PolyLog[2, -(c*e*x^n)]/n, x] /; FreeQ[{c, d,
e, n}, x] && EqQ[c*d, 1]

Rubi steps

\begin{align*} \int \frac{(e x)^{-1+2 n}}{a+b \text{sech}\left (c+d x^n\right )} \, dx &=\frac{\left (x^{-2 n} (e x)^{2 n}\right ) \int \frac{x^{-1+2 n}}{a+b \text{sech}\left (c+d x^n\right )} \, dx}{e}\\ &=\frac{\left (x^{-2 n} (e x)^{2 n}\right ) \operatorname{Subst}\left (\int \frac{x}{a+b \text{sech}(c+d x)} \, dx,x,x^n\right )}{e n}\\ &=\frac{\left (x^{-2 n} (e x)^{2 n}\right ) \operatorname{Subst}\left (\int \left (\frac{x}{a}-\frac{b x}{a (b+a \cosh (c+d x))}\right ) \, dx,x,x^n\right )}{e n}\\ &=\frac{(e x)^{2 n}}{2 a e n}-\frac{\left (b x^{-2 n} (e x)^{2 n}\right ) \operatorname{Subst}\left (\int \frac{x}{b+a \cosh (c+d x)} \, dx,x,x^n\right )}{a e n}\\ &=\frac{(e x)^{2 n}}{2 a e n}-\frac{\left (2 b x^{-2 n} (e x)^{2 n}\right ) \operatorname{Subst}\left (\int \frac{e^{c+d x} x}{a+2 b e^{c+d x}+a e^{2 (c+d x)}} \, dx,x,x^n\right )}{a e n}\\ &=\frac{(e x)^{2 n}}{2 a e n}-\frac{\left (2 b x^{-2 n} (e x)^{2 n}\right ) \operatorname{Subst}\left (\int \frac{e^{c+d x} x}{2 b-2 \sqrt{-a^2+b^2}+2 a e^{c+d x}} \, dx,x,x^n\right )}{\sqrt{-a^2+b^2} e n}+\frac{\left (2 b x^{-2 n} (e x)^{2 n}\right ) \operatorname{Subst}\left (\int \frac{e^{c+d x} x}{2 b+2 \sqrt{-a^2+b^2}+2 a e^{c+d x}} \, dx,x,x^n\right )}{\sqrt{-a^2+b^2} e n}\\ &=\frac{(e x)^{2 n}}{2 a e n}-\frac{b x^{-n} (e x)^{2 n} \log \left (1+\frac{a e^{c+d x^n}}{b-\sqrt{-a^2+b^2}}\right )}{a \sqrt{-a^2+b^2} d e n}+\frac{b x^{-n} (e x)^{2 n} \log \left (1+\frac{a e^{c+d x^n}}{b+\sqrt{-a^2+b^2}}\right )}{a \sqrt{-a^2+b^2} d e n}+\frac{\left (b x^{-2 n} (e x)^{2 n}\right ) \operatorname{Subst}\left (\int \log \left (1+\frac{2 a e^{c+d x}}{2 b-2 \sqrt{-a^2+b^2}}\right ) \, dx,x,x^n\right )}{a \sqrt{-a^2+b^2} d e n}-\frac{\left (b x^{-2 n} (e x)^{2 n}\right ) \operatorname{Subst}\left (\int \log \left (1+\frac{2 a e^{c+d x}}{2 b+2 \sqrt{-a^2+b^2}}\right ) \, dx,x,x^n\right )}{a \sqrt{-a^2+b^2} d e n}\\ &=\frac{(e x)^{2 n}}{2 a e n}-\frac{b x^{-n} (e x)^{2 n} \log \left (1+\frac{a e^{c+d x^n}}{b-\sqrt{-a^2+b^2}}\right )}{a \sqrt{-a^2+b^2} d e n}+\frac{b x^{-n} (e x)^{2 n} \log \left (1+\frac{a e^{c+d x^n}}{b+\sqrt{-a^2+b^2}}\right )}{a \sqrt{-a^2+b^2} d e n}+\frac{\left (b x^{-2 n} (e x)^{2 n}\right ) \operatorname{Subst}\left (\int \frac{\log \left (1+\frac{2 a x}{2 b-2 \sqrt{-a^2+b^2}}\right )}{x} \, dx,x,e^{c+d x^n}\right )}{a \sqrt{-a^2+b^2} d^2 e n}-\frac{\left (b x^{-2 n} (e x)^{2 n}\right ) \operatorname{Subst}\left (\int \frac{\log \left (1+\frac{2 a x}{2 b+2 \sqrt{-a^2+b^2}}\right )}{x} \, dx,x,e^{c+d x^n}\right )}{a \sqrt{-a^2+b^2} d^2 e n}\\ &=\frac{(e x)^{2 n}}{2 a e n}-\frac{b x^{-n} (e x)^{2 n} \log \left (1+\frac{a e^{c+d x^n}}{b-\sqrt{-a^2+b^2}}\right )}{a \sqrt{-a^2+b^2} d e n}+\frac{b x^{-n} (e x)^{2 n} \log \left (1+\frac{a e^{c+d x^n}}{b+\sqrt{-a^2+b^2}}\right )}{a \sqrt{-a^2+b^2} d e n}-\frac{b x^{-2 n} (e x)^{2 n} \text{Li}_2\left (-\frac{a e^{c+d x^n}}{b-\sqrt{-a^2+b^2}}\right )}{a \sqrt{-a^2+b^2} d^2 e n}+\frac{b x^{-2 n} (e x)^{2 n} \text{Li}_2\left (-\frac{a e^{c+d x^n}}{b+\sqrt{-a^2+b^2}}\right )}{a \sqrt{-a^2+b^2} d^2 e n}\\ \end{align*}

Mathematica [C]  time = 2.03922, size = 859, normalized size = 2.8 \[ \frac{(e x)^{2 n} \left (b+a \cosh \left (d x^n+c\right )\right ) \left (\frac{2 b \left (2 \left (d x^n+c\right ) \tan ^{-1}\left (\frac{(a+b) \coth \left (\frac{1}{2} \left (d x^n+c\right )\right )}{\sqrt{a^2-b^2}}\right )+2 \left (c-i \cos ^{-1}\left (-\frac{b}{a}\right )\right ) \tan ^{-1}\left (\frac{(a-b) \tanh \left (\frac{1}{2} \left (d x^n+c\right )\right )}{\sqrt{a^2-b^2}}\right )+\left (\cos ^{-1}\left (-\frac{b}{a}\right )+2 \left (\tan ^{-1}\left (\frac{(a+b) \coth \left (\frac{1}{2} \left (d x^n+c\right )\right )}{\sqrt{a^2-b^2}}\right )+\tan ^{-1}\left (\frac{(a-b) \tanh \left (\frac{1}{2} \left (d x^n+c\right )\right )}{\sqrt{a^2-b^2}}\right )\right )\right ) \log \left (\frac{\sqrt{a^2-b^2} e^{-\frac{d x^n}{2}-\frac{c}{2}}}{\sqrt{2} \sqrt{a} \sqrt{b+a \cosh \left (d x^n+c\right )}}\right )+\left (\cos ^{-1}\left (-\frac{b}{a}\right )-2 \left (\tan ^{-1}\left (\frac{(a+b) \coth \left (\frac{1}{2} \left (d x^n+c\right )\right )}{\sqrt{a^2-b^2}}\right )+\tan ^{-1}\left (\frac{(a-b) \tanh \left (\frac{1}{2} \left (d x^n+c\right )\right )}{\sqrt{a^2-b^2}}\right )\right )\right ) \log \left (\frac{\sqrt{a^2-b^2} e^{\frac{1}{2} \left (d x^n+c\right )}}{\sqrt{2} \sqrt{a} \sqrt{b+a \cosh \left (d x^n+c\right )}}\right )-\left (\cos ^{-1}\left (-\frac{b}{a}\right )+2 \tan ^{-1}\left (\frac{(a-b) \tanh \left (\frac{1}{2} \left (d x^n+c\right )\right )}{\sqrt{a^2-b^2}}\right )\right ) \log \left (\frac{(a+b) \left (-a+b+i \sqrt{a^2-b^2}\right ) \left (\tanh \left (\frac{1}{2} \left (d x^n+c\right )\right )-1\right )}{a \left (a+b+i \sqrt{a^2-b^2} \tanh \left (\frac{1}{2} \left (d x^n+c\right )\right )\right )}\right )-\left (\cos ^{-1}\left (-\frac{b}{a}\right )-2 \tan ^{-1}\left (\frac{(a-b) \tanh \left (\frac{1}{2} \left (d x^n+c\right )\right )}{\sqrt{a^2-b^2}}\right )\right ) \log \left (\frac{(a+b) \left (a-b+i \sqrt{a^2-b^2}\right ) \left (\tanh \left (\frac{1}{2} \left (d x^n+c\right )\right )+1\right )}{a \left (a+b+i \sqrt{a^2-b^2} \tanh \left (\frac{1}{2} \left (d x^n+c\right )\right )\right )}\right )+i \left (\text{PolyLog}\left (2,\frac{\left (b-i \sqrt{a^2-b^2}\right ) \left (a+b-i \sqrt{a^2-b^2} \tanh \left (\frac{1}{2} \left (d x^n+c\right )\right )\right )}{a \left (a+b+i \sqrt{a^2-b^2} \tanh \left (\frac{1}{2} \left (d x^n+c\right )\right )\right )}\right )-\text{PolyLog}\left (2,\frac{\left (b+i \sqrt{a^2-b^2}\right ) \left (a+b-i \sqrt{a^2-b^2} \tanh \left (\frac{1}{2} \left (d x^n+c\right )\right )\right )}{a \left (a+b+i \sqrt{a^2-b^2} \tanh \left (\frac{1}{2} \left (d x^n+c\right )\right )\right )}\right )\right )\right ) x^{-2 n}}{\sqrt{a^2-b^2} d^2}+1\right ) \text{sech}\left (d x^n+c\right )}{2 a e n \left (a+b \text{sech}\left (d x^n+c\right )\right )} \]

Antiderivative was successfully verified.

[In]

Integrate[(e*x)^(-1 + 2*n)/(a + b*Sech[c + d*x^n]),x]

[Out]

((e*x)^(2*n)*(b + a*Cosh[c + d*x^n])*(1 + (2*b*(2*(c + d*x^n)*ArcTan[((a + b)*Coth[(c + d*x^n)/2])/Sqrt[a^2 -
b^2]] + 2*(c - I*ArcCos[-(b/a)])*ArcTan[((a - b)*Tanh[(c + d*x^n)/2])/Sqrt[a^2 - b^2]] + (ArcCos[-(b/a)] + 2*(
ArcTan[((a + b)*Coth[(c + d*x^n)/2])/Sqrt[a^2 - b^2]] + ArcTan[((a - b)*Tanh[(c + d*x^n)/2])/Sqrt[a^2 - b^2]])
)*Log[(Sqrt[a^2 - b^2]*E^(-c/2 - (d*x^n)/2))/(Sqrt[2]*Sqrt[a]*Sqrt[b + a*Cosh[c + d*x^n]])] + (ArcCos[-(b/a)]
- 2*(ArcTan[((a + b)*Coth[(c + d*x^n)/2])/Sqrt[a^2 - b^2]] + ArcTan[((a - b)*Tanh[(c + d*x^n)/2])/Sqrt[a^2 - b
^2]]))*Log[(Sqrt[a^2 - b^2]*E^((c + d*x^n)/2))/(Sqrt[2]*Sqrt[a]*Sqrt[b + a*Cosh[c + d*x^n]])] - (ArcCos[-(b/a)
] + 2*ArcTan[((a - b)*Tanh[(c + d*x^n)/2])/Sqrt[a^2 - b^2]])*Log[((a + b)*(-a + b + I*Sqrt[a^2 - b^2])*(-1 + T
anh[(c + d*x^n)/2]))/(a*(a + b + I*Sqrt[a^2 - b^2]*Tanh[(c + d*x^n)/2]))] - (ArcCos[-(b/a)] - 2*ArcTan[((a - b
)*Tanh[(c + d*x^n)/2])/Sqrt[a^2 - b^2]])*Log[((a + b)*(a - b + I*Sqrt[a^2 - b^2])*(1 + Tanh[(c + d*x^n)/2]))/(
a*(a + b + I*Sqrt[a^2 - b^2]*Tanh[(c + d*x^n)/2]))] + I*(PolyLog[2, ((b - I*Sqrt[a^2 - b^2])*(a + b - I*Sqrt[a
^2 - b^2]*Tanh[(c + d*x^n)/2]))/(a*(a + b + I*Sqrt[a^2 - b^2]*Tanh[(c + d*x^n)/2]))] - PolyLog[2, ((b + I*Sqrt
[a^2 - b^2])*(a + b - I*Sqrt[a^2 - b^2]*Tanh[(c + d*x^n)/2]))/(a*(a + b + I*Sqrt[a^2 - b^2]*Tanh[(c + d*x^n)/2
]))])))/(Sqrt[a^2 - b^2]*d^2*x^(2*n)))*Sech[c + d*x^n])/(2*a*e*n*(a + b*Sech[c + d*x^n]))

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Maple [C]  time = 0.117, size = 585, normalized size = 1.9 \begin{align*} \text{result too large to display} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((e*x)^(-1+2*n)/(a+b*sech(c+d*x^n)),x)

[Out]

1/2/a/n*x*exp(-1/2*(-1+2*n)*(I*csgn(I*e)*csgn(I*x)*csgn(I*e*x)*Pi-I*csgn(I*e)*csgn(I*e*x)^2*Pi-I*csgn(I*x)*csg
n(I*e*x)^2*Pi+I*csgn(I*e*x)^3*Pi-2*ln(e)-2*ln(x)))-2*b/a*exp(-I*Pi*n*csgn(I*e)*csgn(I*x)*csgn(I*e*x))*exp(I*Pi
*n*csgn(I*e)*csgn(I*e*x)^2)*exp(I*Pi*n*csgn(I*x)*csgn(I*e*x)^2)*exp(-I*Pi*n*csgn(I*e*x)^3)*exp(1/2*I*Pi*csgn(I
*e)*csgn(I*x)*csgn(I*e*x))*exp(-1/2*I*Pi*csgn(I*e)*csgn(I*e*x)^2)*exp(-1/2*I*Pi*csgn(I*x)*csgn(I*e*x)^2)*exp(1
/2*I*Pi*csgn(I*e*x)^3)*(e^n)^2/e*exp(c)/n/d^2*(1/2*x^n*d*(ln((-a*exp(2*c+d*x^n)-exp(c)*b+(exp(2*c)*b^2-a^2*exp
(2*c))^(1/2))/(-exp(c)*b+(exp(2*c)*b^2-a^2*exp(2*c))^(1/2)))-ln((a*exp(2*c+d*x^n)+exp(c)*b+(exp(2*c)*b^2-a^2*e
xp(2*c))^(1/2))/(exp(c)*b+(exp(2*c)*b^2-a^2*exp(2*c))^(1/2))))/(exp(2*c)*b^2-a^2*exp(2*c))^(1/2)+1/2*(dilog((-
a*exp(2*c+d*x^n)-exp(c)*b+(exp(2*c)*b^2-a^2*exp(2*c))^(1/2))/(-exp(c)*b+(exp(2*c)*b^2-a^2*exp(2*c))^(1/2)))-di
log((a*exp(2*c+d*x^n)+exp(c)*b+(exp(2*c)*b^2-a^2*exp(2*c))^(1/2))/(exp(c)*b+(exp(2*c)*b^2-a^2*exp(2*c))^(1/2))
))/(exp(2*c)*b^2-a^2*exp(2*c))^(1/2))

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

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((e*x)^(-1+2*n)/(a+b*sech(c+d*x^n)),x, algorithm="maxima")

[Out]

-2*b*e^(2*n)*integrate(e^(d*x^n + 2*n*log(x) + c)/(a^2*e*x*e^(2*d*x^n + 2*c) + 2*a*b*e*x*e^(d*x^n + c) + a^2*e
*x), x) + 1/2*e^(2*n - 1)*x^(2*n)/(a*n)

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Fricas [B]  time = 2.42191, size = 3371, normalized size = 10.98 \begin{align*} \text{result too large to display} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((e*x)^(-1+2*n)/(a+b*sech(c+d*x^n)),x, algorithm="fricas")

[Out]

1/2*((a^2 - b^2)*d^2*cosh((2*n - 1)*log(e))*cosh(n*log(x))^2 + (a^2 - b^2)*d^2*cosh(n*log(x))^2*sinh((2*n - 1)
*log(e)) + ((a^2 - b^2)*d^2*cosh((2*n - 1)*log(e)) + (a^2 - b^2)*d^2*sinh((2*n - 1)*log(e)))*sinh(n*log(x))^2
+ 2*(a*b*sqrt(-(a^2 - b^2)/a^2)*cosh((2*n - 1)*log(e)) + a*b*sqrt(-(a^2 - b^2)/a^2)*sinh((2*n - 1)*log(e)))*di
log(-((a*sqrt(-(a^2 - b^2)/a^2) + b)*cosh(d*cosh(n*log(x)) + d*sinh(n*log(x)) + c) + (a*sqrt(-(a^2 - b^2)/a^2)
+ b)*sinh(d*cosh(n*log(x)) + d*sinh(n*log(x)) + c) + a)/a + 1) - 2*(a*b*sqrt(-(a^2 - b^2)/a^2)*cosh((2*n - 1)
*log(e)) + a*b*sqrt(-(a^2 - b^2)/a^2)*sinh((2*n - 1)*log(e)))*dilog(((a*sqrt(-(a^2 - b^2)/a^2) - b)*cosh(d*cos
h(n*log(x)) + d*sinh(n*log(x)) + c) + (a*sqrt(-(a^2 - b^2)/a^2) - b)*sinh(d*cosh(n*log(x)) + d*sinh(n*log(x))
+ c) - a)/a + 1) + 2*(a*b*c*sqrt(-(a^2 - b^2)/a^2)*cosh((2*n - 1)*log(e)) + a*b*c*sqrt(-(a^2 - b^2)/a^2)*sinh(
(2*n - 1)*log(e)))*log(2*a*cosh(d*cosh(n*log(x)) + d*sinh(n*log(x)) + c) + 2*a*sinh(d*cosh(n*log(x)) + d*sinh(
n*log(x)) + c) + 2*a*sqrt(-(a^2 - b^2)/a^2) + 2*b) - 2*(a*b*c*sqrt(-(a^2 - b^2)/a^2)*cosh((2*n - 1)*log(e)) +
a*b*c*sqrt(-(a^2 - b^2)/a^2)*sinh((2*n - 1)*log(e)))*log(2*a*cosh(d*cosh(n*log(x)) + d*sinh(n*log(x)) + c) + 2
*a*sinh(d*cosh(n*log(x)) + d*sinh(n*log(x)) + c) - 2*a*sqrt(-(a^2 - b^2)/a^2) + 2*b) + 2*(a*b*d*sqrt(-(a^2 - b
^2)/a^2)*cosh((2*n - 1)*log(e))*cosh(n*log(x)) + a*b*c*sqrt(-(a^2 - b^2)/a^2)*cosh((2*n - 1)*log(e)) + (a*b*d*
sqrt(-(a^2 - b^2)/a^2)*cosh(n*log(x)) + a*b*c*sqrt(-(a^2 - b^2)/a^2))*sinh((2*n - 1)*log(e)) + (a*b*d*sqrt(-(a
^2 - b^2)/a^2)*cosh((2*n - 1)*log(e)) + a*b*d*sqrt(-(a^2 - b^2)/a^2)*sinh((2*n - 1)*log(e)))*sinh(n*log(x)))*l
og(((a*sqrt(-(a^2 - b^2)/a^2) + b)*cosh(d*cosh(n*log(x)) + d*sinh(n*log(x)) + c) + (a*sqrt(-(a^2 - b^2)/a^2) +
b)*sinh(d*cosh(n*log(x)) + d*sinh(n*log(x)) + c) + a)/a) - 2*(a*b*d*sqrt(-(a^2 - b^2)/a^2)*cosh((2*n - 1)*log
(e))*cosh(n*log(x)) + a*b*c*sqrt(-(a^2 - b^2)/a^2)*cosh((2*n - 1)*log(e)) + (a*b*d*sqrt(-(a^2 - b^2)/a^2)*cosh
(n*log(x)) + a*b*c*sqrt(-(a^2 - b^2)/a^2))*sinh((2*n - 1)*log(e)) + (a*b*d*sqrt(-(a^2 - b^2)/a^2)*cosh((2*n -
1)*log(e)) + a*b*d*sqrt(-(a^2 - b^2)/a^2)*sinh((2*n - 1)*log(e)))*sinh(n*log(x)))*log(-((a*sqrt(-(a^2 - b^2)/a
^2) - b)*cosh(d*cosh(n*log(x)) + d*sinh(n*log(x)) + c) + (a*sqrt(-(a^2 - b^2)/a^2) - b)*sinh(d*cosh(n*log(x))
+ d*sinh(n*log(x)) + c) - a)/a) + 2*((a^2 - b^2)*d^2*cosh((2*n - 1)*log(e))*cosh(n*log(x)) + (a^2 - b^2)*d^2*c
osh(n*log(x))*sinh((2*n - 1)*log(e)))*sinh(n*log(x)))/((a^3 - a*b^2)*d^2*n)

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Sympy [F]  time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{\left (e x\right )^{2 n - 1}}{a + b \operatorname{sech}{\left (c + d x^{n} \right )}}\, dx \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((e*x)**(-1+2*n)/(a+b*sech(c+d*x**n)),x)

[Out]

Integral((e*x)**(2*n - 1)/(a + b*sech(c + d*x**n)), x)

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Giac [F]  time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{\left (e x\right )^{2 \, n - 1}}{b \operatorname{sech}\left (d x^{n} + c\right ) + a}\,{d x} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((e*x)^(-1+2*n)/(a+b*sech(c+d*x^n)),x, algorithm="giac")

[Out]

integrate((e*x)^(2*n - 1)/(b*sech(d*x^n + c) + a), x)