3.41 \(\int \cot ^4(c+d x) (a+i a \tan (c+d x))^4 \, dx\)

Optimal. Leaf size=103 \[ \frac {4 a^4 \cot (c+d x)}{d}-\frac {8 i a^4 \log (\sin (c+d x))}{d}+8 a^4 x-\frac {i \cot ^2(c+d x) \left (a^2+i a^2 \tan (c+d x)\right )^2}{d}-\frac {a \cot ^3(c+d x) (a+i a \tan (c+d x))^3}{3 d} \]

[Out]

8*a^4*x+4*a^4*cot(d*x+c)/d-8*I*a^4*ln(sin(d*x+c))/d-1/3*a*cot(d*x+c)^3*(a+I*a*tan(d*x+c))^3/d-I*cot(d*x+c)^2*(
a^2+I*a^2*tan(d*x+c))^2/d

________________________________________________________________________________________

Rubi [A]  time = 0.16, antiderivative size = 103, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 4, integrand size = 24, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.167, Rules used = {3545, 3542, 3531, 3475} \[ \frac {4 a^4 \cot (c+d x)}{d}-\frac {8 i a^4 \log (\sin (c+d x))}{d}-\frac {i \cot ^2(c+d x) \left (a^2+i a^2 \tan (c+d x)\right )^2}{d}+8 a^4 x-\frac {a \cot ^3(c+d x) (a+i a \tan (c+d x))^3}{3 d} \]

Antiderivative was successfully verified.

[In]

Int[Cot[c + d*x]^4*(a + I*a*Tan[c + d*x])^4,x]

[Out]

8*a^4*x + (4*a^4*Cot[c + d*x])/d - ((8*I)*a^4*Log[Sin[c + d*x]])/d - (a*Cot[c + d*x]^3*(a + I*a*Tan[c + d*x])^
3)/(3*d) - (I*Cot[c + d*x]^2*(a^2 + I*a^2*Tan[c + d*x])^2)/d

Rule 3475

Int[tan[(c_.) + (d_.)*(x_)], x_Symbol] :> -Simp[Log[RemoveContent[Cos[c + d*x], x]]/d, x] /; FreeQ[{c, d}, x]

Rule 3531

Int[((c_.) + (d_.)*tan[(e_.) + (f_.)*(x_)])/((a_.) + (b_.)*tan[(e_.) + (f_.)*(x_)]), x_Symbol] :> Simp[((a*c +
b*d)*x)/(a^2 + b^2), x] + Dist[(b*c - a*d)/(a^2 + b^2), Int[(b - a*Tan[e + f*x])/(a + b*Tan[e + f*x]), x], x]
/; FreeQ[{a, b, c, d, e, f}, x] && NeQ[b*c - a*d, 0] && NeQ[a^2 + b^2, 0] && NeQ[a*c + b*d, 0]

Rule 3542

Int[((a_.) + (b_.)*tan[(e_.) + (f_.)*(x_)])^(m_)*((c_.) + (d_.)*tan[(e_.) + (f_.)*(x_)])^2, x_Symbol] :> Simp[
((b*c - a*d)^2*(a + b*Tan[e + f*x])^(m + 1))/(b*f*(m + 1)*(a^2 + b^2)), x] + Dist[1/(a^2 + b^2), Int[(a + b*Ta
n[e + f*x])^(m + 1)*Simp[a*c^2 + 2*b*c*d - a*d^2 - (b*c^2 - 2*a*c*d - b*d^2)*Tan[e + f*x], x], x], x] /; FreeQ
[{a, b, c, d, e, f}, x] && NeQ[b*c - a*d, 0] && LtQ[m, -1] && NeQ[a^2 + b^2, 0]

Rule 3545

Int[((a_) + (b_.)*tan[(e_.) + (f_.)*(x_)])^(m_)*((c_.) + (d_.)*tan[(e_.) + (f_.)*(x_)])^(n_), x_Symbol] :> Sim
p[(a*b*(a + b*Tan[e + f*x])^(m - 1)*(c + d*Tan[e + f*x])^(n + 1))/(f*(m - 1)*(a*c - b*d)), x] + Dist[(2*a^2)/(
a*c - b*d), Int[(a + b*Tan[e + f*x])^(m - 1)*(c + d*Tan[e + f*x])^(n + 1), x], x] /; FreeQ[{a, b, c, d, e, f},
x] && NeQ[b*c - a*d, 0] && EqQ[a^2 + b^2, 0] && NeQ[c^2 + d^2, 0] && EqQ[m + n, 0] && GtQ[m, 1/2]

Rubi steps

\begin {align*} \int \cot ^4(c+d x) (a+i a \tan (c+d x))^4 \, dx &=-\frac {a \cot ^3(c+d x) (a+i a \tan (c+d x))^3}{3 d}+(2 i a) \int \cot ^3(c+d x) (a+i a \tan (c+d x))^3 \, dx\\ &=-\frac {a \cot ^3(c+d x) (a+i a \tan (c+d x))^3}{3 d}-\frac {i \cot ^2(c+d x) \left (a^2+i a^2 \tan (c+d x)\right )^2}{d}-\left (4 a^2\right ) \int \cot ^2(c+d x) (a+i a \tan (c+d x))^2 \, dx\\ &=\frac {4 a^4 \cot (c+d x)}{d}-\frac {a \cot ^3(c+d x) (a+i a \tan (c+d x))^3}{3 d}-\frac {i \cot ^2(c+d x) \left (a^2+i a^2 \tan (c+d x)\right )^2}{d}-\left (4 a^2\right ) \int \cot (c+d x) \left (2 i a^2-2 a^2 \tan (c+d x)\right ) \, dx\\ &=8 a^4 x+\frac {4 a^4 \cot (c+d x)}{d}-\frac {a \cot ^3(c+d x) (a+i a \tan (c+d x))^3}{3 d}-\frac {i \cot ^2(c+d x) \left (a^2+i a^2 \tan (c+d x)\right )^2}{d}-\left (8 i a^4\right ) \int \cot (c+d x) \, dx\\ &=8 a^4 x+\frac {4 a^4 \cot (c+d x)}{d}-\frac {8 i a^4 \log (\sin (c+d x))}{d}-\frac {a \cot ^3(c+d x) (a+i a \tan (c+d x))^3}{3 d}-\frac {i \cot ^2(c+d x) \left (a^2+i a^2 \tan (c+d x)\right )^2}{d}\\ \end {align*}

________________________________________________________________________________________

Mathematica [B]  time = 1.09, size = 240, normalized size = 2.33 \[ \frac {a^4 \csc (c) \csc ^3(c+d x) (\cos (4 d x)+i \sin (4 d x)) \left (-12 \sin (2 c+d x)+11 \sin (2 c+3 d x)-36 d x \cos (2 c+d x)+6 i \cos (2 c+d x)-12 d x \cos (2 c+3 d x)+12 d x \cos (4 c+3 d x)-48 \sin (c) \sin ^3(c+d x) \tan ^{-1}(\tan (5 c+d x))+\cos (d x) \left (-9 i \log \left (\sin ^2(c+d x)\right )+36 d x-6 i\right )+9 i \cos (2 c+d x) \log \left (\sin ^2(c+d x)\right )+3 i \cos (2 c+3 d x) \log \left (\sin ^2(c+d x)\right )-3 i \cos (4 c+3 d x) \log \left (\sin ^2(c+d x)\right )-21 \sin (d x)\right )}{6 d (\cos (d x)+i \sin (d x))^4} \]

Antiderivative was successfully verified.

[In]

Integrate[Cot[c + d*x]^4*(a + I*a*Tan[c + d*x])^4,x]

[Out]

(a^4*Csc[c]*Csc[c + d*x]^3*(Cos[4*d*x] + I*Sin[4*d*x])*((6*I)*Cos[2*c + d*x] - 36*d*x*Cos[2*c + d*x] - 12*d*x*
Cos[2*c + 3*d*x] + 12*d*x*Cos[4*c + 3*d*x] + Cos[d*x]*(-6*I + 36*d*x - (9*I)*Log[Sin[c + d*x]^2]) + (9*I)*Cos[
2*c + d*x]*Log[Sin[c + d*x]^2] + (3*I)*Cos[2*c + 3*d*x]*Log[Sin[c + d*x]^2] - (3*I)*Cos[4*c + 3*d*x]*Log[Sin[c
+ d*x]^2] - 21*Sin[d*x] - 48*ArcTan[Tan[5*c + d*x]]*Sin[c]*Sin[c + d*x]^3 - 12*Sin[2*c + d*x] + 11*Sin[2*c +
3*d*x]))/(6*d*(Cos[d*x] + I*Sin[d*x])^4)

________________________________________________________________________________________

fricas [A]  time = 0.42, size = 138, normalized size = 1.34 \[ \frac {72 i \, a^{4} e^{\left (4 i \, d x + 4 i \, c\right )} - 108 i \, a^{4} e^{\left (2 i \, d x + 2 i \, c\right )} + 44 i \, a^{4} + {\left (-24 i \, a^{4} e^{\left (6 i \, d x + 6 i \, c\right )} + 72 i \, a^{4} e^{\left (4 i \, d x + 4 i \, c\right )} - 72 i \, a^{4} e^{\left (2 i \, d x + 2 i \, c\right )} + 24 i \, a^{4}\right )} \log \left (e^{\left (2 i \, d x + 2 i \, c\right )} - 1\right )}{3 \, {\left (d e^{\left (6 i \, d x + 6 i \, c\right )} - 3 \, d e^{\left (4 i \, d x + 4 i \, c\right )} + 3 \, d e^{\left (2 i \, d x + 2 i \, c\right )} - d\right )}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(cot(d*x+c)^4*(a+I*a*tan(d*x+c))^4,x, algorithm="fricas")

[Out]

1/3*(72*I*a^4*e^(4*I*d*x + 4*I*c) - 108*I*a^4*e^(2*I*d*x + 2*I*c) + 44*I*a^4 + (-24*I*a^4*e^(6*I*d*x + 6*I*c)
+ 72*I*a^4*e^(4*I*d*x + 4*I*c) - 72*I*a^4*e^(2*I*d*x + 2*I*c) + 24*I*a^4)*log(e^(2*I*d*x + 2*I*c) - 1))/(d*e^(
6*I*d*x + 6*I*c) - 3*d*e^(4*I*d*x + 4*I*c) + 3*d*e^(2*I*d*x + 2*I*c) - d)

________________________________________________________________________________________

giac [A]  time = 5.64, size = 146, normalized size = 1.42 \[ \frac {a^{4} \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{3} - 12 i \, a^{4} \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{2} + 384 i \, a^{4} \log \left (\tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right ) + i\right ) - 192 i \, a^{4} \log \left (\tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )\right ) - 87 \, a^{4} \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right ) - \frac {-352 i \, a^{4} \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{3} - 87 \, a^{4} \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{2} + 12 i \, a^{4} \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right ) + a^{4}}{\tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{3}}}{24 \, d} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(cot(d*x+c)^4*(a+I*a*tan(d*x+c))^4,x, algorithm="giac")

[Out]

1/24*(a^4*tan(1/2*d*x + 1/2*c)^3 - 12*I*a^4*tan(1/2*d*x + 1/2*c)^2 + 384*I*a^4*log(tan(1/2*d*x + 1/2*c) + I) -
192*I*a^4*log(tan(1/2*d*x + 1/2*c)) - 87*a^4*tan(1/2*d*x + 1/2*c) - (-352*I*a^4*tan(1/2*d*x + 1/2*c)^3 - 87*a
^4*tan(1/2*d*x + 1/2*c)^2 + 12*I*a^4*tan(1/2*d*x + 1/2*c) + a^4)/tan(1/2*d*x + 1/2*c)^3)/d

________________________________________________________________________________________

maple [A]  time = 0.32, size = 80, normalized size = 0.78 \[ 8 a^{4} x +\frac {8 a^{4} c}{d}-\frac {8 i a^{4} \ln \left (\sin \left (d x +c \right )\right )}{d}+\frac {7 a^{4} \cot \left (d x +c \right )}{d}-\frac {2 i a^{4} \left (\cot ^{2}\left (d x +c \right )\right )}{d}-\frac {a^{4} \left (\cot ^{3}\left (d x +c \right )\right )}{3 d} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(cot(d*x+c)^4*(a+I*a*tan(d*x+c))^4,x)

[Out]

8*a^4*x+8/d*a^4*c-8*I*a^4*ln(sin(d*x+c))/d+7*a^4*cot(d*x+c)/d-2*I/d*a^4*cot(d*x+c)^2-1/3*a^4*cot(d*x+c)^3/d

________________________________________________________________________________________

maxima [A]  time = 0.50, size = 83, normalized size = 0.81 \[ \frac {24 \, {\left (d x + c\right )} a^{4} + 12 i \, a^{4} \log \left (\tan \left (d x + c\right )^{2} + 1\right ) - 24 i \, a^{4} \log \left (\tan \left (d x + c\right )\right ) + \frac {21 \, a^{4} \tan \left (d x + c\right )^{2} - 6 i \, a^{4} \tan \left (d x + c\right ) - a^{4}}{\tan \left (d x + c\right )^{3}}}{3 \, d} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(cot(d*x+c)^4*(a+I*a*tan(d*x+c))^4,x, algorithm="maxima")

[Out]

1/3*(24*(d*x + c)*a^4 + 12*I*a^4*log(tan(d*x + c)^2 + 1) - 24*I*a^4*log(tan(d*x + c)) + (21*a^4*tan(d*x + c)^2
- 6*I*a^4*tan(d*x + c) - a^4)/tan(d*x + c)^3)/d

________________________________________________________________________________________

mupad [B]  time = 3.98, size = 68, normalized size = 0.66 \[ \frac {7\,a^4\,\mathrm {cot}\left (c+d\,x\right )}{d}+\frac {16\,a^4\,\mathrm {atan}\left (2\,\mathrm {tan}\left (c+d\,x\right )+1{}\mathrm {i}\right )}{d}-\frac {a^4\,{\mathrm {cot}\left (c+d\,x\right )}^3}{3\,d}-\frac {a^4\,{\mathrm {cot}\left (c+d\,x\right )}^2\,2{}\mathrm {i}}{d} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(cot(c + d*x)^4*(a + a*tan(c + d*x)*1i)^4,x)

[Out]

(7*a^4*cot(c + d*x))/d + (16*a^4*atan(2*tan(c + d*x) + 1i))/d - (a^4*cot(c + d*x)^2*2i)/d - (a^4*cot(c + d*x)^
3)/(3*d)

________________________________________________________________________________________

sympy [A]  time = 0.51, size = 136, normalized size = 1.32 \[ - \frac {8 i a^{4} \log {\left (e^{2 i d x} - e^{- 2 i c} \right )}}{d} + \frac {- 72 i a^{4} e^{4 i c} e^{4 i d x} + 108 i a^{4} e^{2 i c} e^{2 i d x} - 44 i a^{4}}{- 3 d e^{6 i c} e^{6 i d x} + 9 d e^{4 i c} e^{4 i d x} - 9 d e^{2 i c} e^{2 i d x} + 3 d} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(cot(d*x+c)**4*(a+I*a*tan(d*x+c))**4,x)

[Out]

-8*I*a**4*log(exp(2*I*d*x) - exp(-2*I*c))/d + (-72*I*a**4*exp(4*I*c)*exp(4*I*d*x) + 108*I*a**4*exp(2*I*c)*exp(
2*I*d*x) - 44*I*a**4)/(-3*d*exp(6*I*c)*exp(6*I*d*x) + 9*d*exp(4*I*c)*exp(4*I*d*x) - 9*d*exp(2*I*c)*exp(2*I*d*x
) + 3*d)

________________________________________________________________________________________