3.7.34 \(\int (\text {sech}(x)-i \tanh (x))^5 \, dx\) [634]

Optimal. Leaf size=42 \[ -i \log (i-\sinh (x))+\frac {2 i}{(1+i \sinh (x))^2}-\frac {4 i}{1+i \sinh (x)} \]

[Out]

-I*ln(I-sinh(x))+2*I/(1+I*sinh(x))^2-4*I/(1+I*sinh(x))

________________________________________________________________________________________

Rubi [A]
time = 0.04, antiderivative size = 42, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, integrand size = 11, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.273, Rules used = {4476, 2746, 45} \begin {gather*} -\frac {4 i}{1+i \sinh (x)}+\frac {2 i}{(1+i \sinh (x))^2}-i \log (-\sinh (x)+i) \end {gather*}

Antiderivative was successfully verified.

[In]

Int[(Sech[x] - I*Tanh[x])^5,x]

[Out]

(-I)*Log[I - Sinh[x]] + (2*I)/(1 + I*Sinh[x])^2 - (4*I)/(1 + I*Sinh[x])

Rule 45

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 2746

Int[cos[(e_.) + (f_.)*(x_)]^(p_.)*((a_) + (b_.)*sin[(e_.) + (f_.)*(x_)])^(m_.), x_Symbol] :> Dist[1/(b^p*f), S
ubst[Int[(a + x)^(m + (p - 1)/2)*(a - x)^((p - 1)/2), x], x, b*Sin[e + f*x]], x] /; FreeQ[{a, b, e, f, m}, x]
&& IntegerQ[(p - 1)/2] && EqQ[a^2 - b^2, 0] && (GeQ[p, -1] ||  !IntegerQ[m + 1/2])

Rule 4476

Int[(u_.)*((b_.)*sec[(c_.) + (d_.)*(x_)]^(n_.) + (a_.)*tan[(c_.) + (d_.)*(x_)]^(n_.))^(p_), x_Symbol] :> Int[A
ctivateTrig[u]*Sec[c + d*x]^(n*p)*(b + a*Sin[c + d*x]^n)^p, x] /; FreeQ[{a, b, c, d}, x] && IntegersQ[n, p]

Rubi steps

\begin {align*} \int (\text {sech}(x)-i \tanh (x))^5 \, dx &=\int \text {sech}^5(x) (1-i \sinh (x))^5 \, dx\\ &=i \text {Subst}\left (\int \frac {(1+x)^2}{(1-x)^3} \, dx,x,-i \sinh (x)\right )\\ &=i \text {Subst}\left (\int \left (\frac {1}{1-x}-\frac {4}{(-1+x)^3}-\frac {4}{(-1+x)^2}\right ) \, dx,x,-i \sinh (x)\right )\\ &=-i \log (i-\sinh (x))+\frac {2 i}{(1+i \sinh (x))^2}-\frac {4 i}{1+i \sinh (x)}\\ \end {align*}

________________________________________________________________________________________

Mathematica [A]
time = 0.04, size = 62, normalized size = 1.48 \begin {gather*} \text {ArcTan}(\sinh (x))-i \log (\cosh (x))+\frac {5}{4} i \text {sech}^4(x)+\text {sech}(x) \tanh (x)-\text {sech}^3(x) \tanh (x)+\frac {1}{2} i \tanh ^2(x)-5 \text {sech}(x) \tanh ^3(x)+\frac {11}{4} i \tanh ^4(x) \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[(Sech[x] - I*Tanh[x])^5,x]

[Out]

ArcTan[Sinh[x]] - I*Log[Cosh[x]] + ((5*I)/4)*Sech[x]^4 + Sech[x]*Tanh[x] - Sech[x]^3*Tanh[x] + (I/2)*Tanh[x]^2
- 5*Sech[x]*Tanh[x]^3 + ((11*I)/4)*Tanh[x]^4

________________________________________________________________________________________

Maple [A]
time = 1.72, size = 40, normalized size = 0.95

method	result	size
risch	\(i x -\frac {8 \left (-i {\mathrm e}^{2 x}+{\mathrm e}^{3 x}-{\mathrm e}^{x}\right )}{\left ({\mathrm e}^{x}-i\right )^{4}}-2 i \ln \left ({\mathrm e}^{x}-i\right )\)	\(40\)

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((sech(x)-I*tanh(x))^5,x,method=_RETURNVERBOSE)

[Out]

I*x-8*(-I*exp(2*x)+exp(3*x)-exp(x))/(exp(x)-I)^4-2*I*ln(exp(x)-I)

________________________________________________________________________________________

Maxima [B] Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 235 vs. \(2 (30) = 60\).
time = 0.48, size = 235, normalized size = 5.60 \begin {gather*} \frac {5}{2} i \, \tanh \left (x\right )^{4} - i \, x - \frac {5 \, {\left (5 \, e^{\left (-x\right )} - 3 \, e^{\left (-3 \, x\right )} + 3 \, e^{\left (-5 \, x\right )} - 5 \, e^{\left (-7 \, x\right )}\right )}}{4 \, {\left (4 \, e^{\left (-2 \, x\right )} + 6 \, e^{\left (-4 \, x\right )} + 4 \, e^{\left (-6 \, x\right )} + e^{\left (-8 \, x\right )} + 1\right )}} + \frac {3 \, e^{\left (-x\right )} + 11 \, e^{\left (-3 \, x\right )} - 11 \, e^{\left (-5 \, x\right )} - 3 \, e^{\left (-7 \, x\right )}}{4 \, {\left (4 \, e^{\left (-2 \, x\right )} + 6 \, e^{\left (-4 \, x\right )} + 4 \, e^{\left (-6 \, x\right )} + e^{\left (-8 \, x\right )} + 1\right )}} - \frac {5 \, {\left (e^{\left (-x\right )} - 7 \, e^{\left (-3 \, x\right )} + 7 \, e^{\left (-5 \, x\right )} - e^{\left (-7 \, x\right )}\right )}}{2 \, {\left (4 \, e^{\left (-2 \, x\right )} + 6 \, e^{\left (-4 \, x\right )} + 4 \, e^{\left (-6 \, x\right )} + e^{\left (-8 \, x\right )} + 1\right )}} - \frac {4 i \, {\left (e^{\left (-2 \, x\right )} + e^{\left (-4 \, x\right )} + e^{\left (-6 \, x\right )}\right )}}{4 \, e^{\left (-2 \, x\right )} + 6 \, e^{\left (-4 \, x\right )} + 4 \, e^{\left (-6 \, x\right )} + e^{\left (-8 \, x\right )} + 1} + \frac {20 i}{{\left (e^{\left (-x\right )} + e^{x}\right )}^{4}} - 2 \, \arctan \left (e^{\left (-x\right )}\right ) - i \, \log \left (e^{\left (-2 \, x\right )} + 1\right ) \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((sech(x)-I*tanh(x))^5,x, algorithm="maxima")

[Out]

5/2*I*tanh(x)^4 - I*x - 5/4*(5*e^(-x) - 3*e^(-3*x) + 3*e^(-5*x) - 5*e^(-7*x))/(4*e^(-2*x) + 6*e^(-4*x) + 4*e^(
-6*x) + e^(-8*x) + 1) + 1/4*(3*e^(-x) + 11*e^(-3*x) - 11*e^(-5*x) - 3*e^(-7*x))/(4*e^(-2*x) + 6*e^(-4*x) + 4*e
^(-6*x) + e^(-8*x) + 1) - 5/2*(e^(-x) - 7*e^(-3*x) + 7*e^(-5*x) - e^(-7*x))/(4*e^(-2*x) + 6*e^(-4*x) + 4*e^(-6
*x) + e^(-8*x) + 1) - 4*I*(e^(-2*x) + e^(-4*x) + e^(-6*x))/(4*e^(-2*x) + 6*e^(-4*x) + 4*e^(-6*x) + e^(-8*x) +
1) + 20*I/(e^(-x) + e^x)^4 - 2*arctan(e^(-x)) - I*log(e^(-2*x) + 1)

________________________________________________________________________________________

Fricas [B] Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 94 vs. \(2 (30) = 60\).
time = 0.37, size = 94, normalized size = 2.24 \begin {gather*} \frac {i \, x e^{\left (4 \, x\right )} + 4 \, {\left (x - 2\right )} e^{\left (3 \, x\right )} - 2 \, {\left (3 i \, x - 4 i\right )} e^{\left (2 \, x\right )} - 4 \, {\left (x - 2\right )} e^{x} - 2 \, {\left (i \, e^{\left (4 \, x\right )} + 4 \, e^{\left (3 \, x\right )} - 6 i \, e^{\left (2 \, x\right )} - 4 \, e^{x} + i\right )} \log \left (e^{x} - i\right ) + i \, x}{e^{\left (4 \, x\right )} - 4 i \, e^{\left (3 \, x\right )} - 6 \, e^{\left (2 \, x\right )} + 4 i \, e^{x} + 1} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((sech(x)-I*tanh(x))^5,x, algorithm="fricas")

[Out]

(I*x*e^(4*x) + 4*(x - 2)*e^(3*x) - 2*(3*I*x - 4*I)*e^(2*x) - 4*(x - 2)*e^x - 2*(I*e^(4*x) + 4*e^(3*x) - 6*I*e^
(2*x) - 4*e^x + I)*log(e^x - I) + I*x)/(e^(4*x) - 4*I*e^(3*x) - 6*e^(2*x) + 4*I*e^x + 1)

________________________________________________________________________________________

Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \left (- i \tanh {\left (x \right )} + \operatorname {sech}{\left (x \right )}\right )^{5}\, dx \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((sech(x)-I*tanh(x))**5,x)

[Out]

Integral((-I*tanh(x) + sech(x))**5, x)

________________________________________________________________________________________

Giac [A]
time = 0.41, size = 34, normalized size = 0.81 \begin {gather*} i \, x - \frac {8 \, {\left (e^{\left (3 \, x\right )} - i \, e^{\left (2 \, x\right )} - e^{x}\right )}}{{\left (e^{x} - i\right )}^{4}} - 2 i \, \log \left (e^{x} - i\right ) \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((sech(x)-I*tanh(x))^5,x, algorithm="giac")

[Out]

I*x - 8*(e^(3*x) - I*e^(2*x) - e^x)/(e^x - I)^4 - 2*I*log(e^x - I)

________________________________________________________________________________________

Mupad [B]
time = 1.60, size = 94, normalized size = 2.24 \begin {gather*} x\,1{}\mathrm {i}-\ln \left ({\mathrm {e}}^x-\mathrm {i}\right )\,2{}\mathrm {i}-\frac {16}{{\mathrm {e}}^{2\,x}\,3{}\mathrm {i}-{\mathrm {e}}^{3\,x}+3\,{\mathrm {e}}^x-\mathrm {i}}+\frac {8{}\mathrm {i}}{{\mathrm {e}}^{4\,x}-6\,{\mathrm {e}}^{2\,x}+1-{\mathrm {e}}^{3\,x}\,4{}\mathrm {i}+{\mathrm {e}}^x\,4{}\mathrm {i}}+\frac {16{}\mathrm {i}}{1-{\mathrm {e}}^{2\,x}+{\mathrm {e}}^x\,2{}\mathrm {i}}-\frac {8}{{\mathrm {e}}^x-\mathrm {i}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(-(tanh(x)*1i - 1/cosh(x))^5,x)

[Out]

x*1i - log(exp(x) - 1i)*2i - 16/(exp(2*x)*3i - exp(3*x) + 3*exp(x) - 1i) + 8i/(exp(4*x) - exp(3*x)*4i - 6*exp(
2*x) + exp(x)*4i + 1) + 16i/(exp(x)*2i - exp(2*x) + 1) - 8/(exp(x) - 1i)

________________________________________________________________________________________