3.789 \(\int (a+b \cos (c+d x))^3 (B \cos (c+d x)+C \cos ^2(c+d x)) \sec ^3(c+d x) \, dx\)

Optimal. Leaf size=131 \[ -\frac{b \left (2 a^2 B-3 a b C-b^2 B\right ) \sin (c+d x)}{d}+\frac{1}{2} b x \left (6 a^2 C+6 a b B+b^2 C\right )+\frac{a^2 (a C+3 b B) \tanh ^{-1}(\sin (c+d x))}{d}-\frac{b^2 (2 a B-b C) \sin (c+d x) \cos (c+d x)}{2 d}+\frac{a B \tan (c+d x) (a+b \cos (c+d x))^2}{d} \]

[Out]

(b*(6*a*b*B + 6*a^2*C + b^2*C)*x)/2 + (a^2*(3*b*B + a*C)*ArcTanh[Sin[c + d*x]])/d - (b*(2*a^2*B - b^2*B - 3*a*
b*C)*Sin[c + d*x])/d - (b^2*(2*a*B - b*C)*Cos[c + d*x]*Sin[c + d*x])/(2*d) + (a*B*(a + b*Cos[c + d*x])^2*Tan[c
+ d*x])/d

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Rubi [A]  time = 0.464639, antiderivative size = 131, normalized size of antiderivative = 1., number of steps used = 6, number of rules used = 6, integrand size = 40, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.15, Rules used = {3029, 2989, 3033, 3023, 2735, 3770} \[ -\frac{b \left (2 a^2 B-3 a b C-b^2 B\right ) \sin (c+d x)}{d}+\frac{1}{2} b x \left (6 a^2 C+6 a b B+b^2 C\right )+\frac{a^2 (a C+3 b B) \tanh ^{-1}(\sin (c+d x))}{d}-\frac{b^2 (2 a B-b C) \sin (c+d x) \cos (c+d x)}{2 d}+\frac{a B \tan (c+d x) (a+b \cos (c+d x))^2}{d} \]

Antiderivative was successfully verified.

[In]

Int[(a + b*Cos[c + d*x])^3*(B*Cos[c + d*x] + C*Cos[c + d*x]^2)*Sec[c + d*x]^3,x]

[Out]

(b*(6*a*b*B + 6*a^2*C + b^2*C)*x)/2 + (a^2*(3*b*B + a*C)*ArcTanh[Sin[c + d*x]])/d - (b*(2*a^2*B - b^2*B - 3*a*
b*C)*Sin[c + d*x])/d - (b^2*(2*a*B - b*C)*Cos[c + d*x]*Sin[c + d*x])/(2*d) + (a*B*(a + b*Cos[c + d*x])^2*Tan[c
+ d*x])/d

Rule 3029

Int[((a_.) + (b_.)*sin[(e_.) + (f_.)*(x_)])^(m_.)*((c_.) + (d_.)*sin[(e_.) + (f_.)*(x_)])^(n_.)*((A_.) + (B_.)
*sin[(e_.) + (f_.)*(x_)] + (C_.)*sin[(e_.) + (f_.)*(x_)]^2), x_Symbol] :> Dist[1/b^2, Int[(a + b*Sin[e + f*x])
^(m + 1)*(c + d*Sin[e + f*x])^n*(b*B - a*C + b*C*Sin[e + f*x]), x], x] /; FreeQ[{a, b, c, d, e, f, A, B, C, m,
n}, x] && NeQ[b*c - a*d, 0] && EqQ[A*b^2 - a*b*B + a^2*C, 0]

Rule 2989

Int[((a_.) + (b_.)*sin[(e_.) + (f_.)*(x_)])^(m_)*((A_.) + (B_.)*sin[(e_.) + (f_.)*(x_)])*((c_.) + (d_.)*sin[(e
_.) + (f_.)*(x_)])^(n_), x_Symbol] :> -Simp[((b*c - a*d)*(B*c - A*d)*Cos[e + f*x]*(a + b*Sin[e + f*x])^(m - 1)
*(c + d*Sin[e + f*x])^(n + 1))/(d*f*(n + 1)*(c^2 - d^2)), x] + Dist[1/(d*(n + 1)*(c^2 - d^2)), Int[(a + b*Sin[
e + f*x])^(m - 2)*(c + d*Sin[e + f*x])^(n + 1)*Simp[b*(b*c - a*d)*(B*c - A*d)*(m - 1) + a*d*(a*A*c + b*B*c - (
A*b + a*B)*d)*(n + 1) + (b*(b*d*(B*c - A*d) + a*(A*c*d + B*(c^2 - 2*d^2)))*(n + 1) - a*(b*c - a*d)*(B*c - A*d)
*(n + 2))*Sin[e + f*x] + b*(d*(A*b*c + a*B*c - a*A*d)*(m + n + 1) - b*B*(c^2*m + d^2*(n + 1)))*Sin[e + f*x]^2,
x], x], x] /; FreeQ[{a, b, c, d, e, f, A, B}, x] && NeQ[b*c - a*d, 0] && NeQ[a^2 - b^2, 0] && NeQ[c^2 - d^2,
0] && GtQ[m, 1] && LtQ[n, -1]

Rule 3033

Int[((a_.) + (b_.)*sin[(e_.) + (f_.)*(x_)])^(m_.)*((c_) + (d_.)*sin[(e_.) + (f_.)*(x_)])*((A_.) + (B_.)*sin[(e
_.) + (f_.)*(x_)] + (C_.)*sin[(e_.) + (f_.)*(x_)]^2), x_Symbol] :> -Simp[(C*d*Cos[e + f*x]*Sin[e + f*x]*(a + b
*Sin[e + f*x])^(m + 1))/(b*f*(m + 3)), x] + Dist[1/(b*(m + 3)), Int[(a + b*Sin[e + f*x])^m*Simp[a*C*d + A*b*c*
(m + 3) + b*(B*c*(m + 3) + d*(C*(m + 2) + A*(m + 3)))*Sin[e + f*x] - (2*a*C*d - b*(c*C + B*d)*(m + 3))*Sin[e +
f*x]^2, x], x], x] /; FreeQ[{a, b, c, d, e, f, A, B, C, m}, x] && NeQ[b*c - a*d, 0] && NeQ[a^2 - b^2, 0] &&
!LtQ[m, -1]

Rule 3023

Int[((a_.) + (b_.)*sin[(e_.) + (f_.)*(x_)])^(m_.)*((A_.) + (B_.)*sin[(e_.) + (f_.)*(x_)] + (C_.)*sin[(e_.) + (
f_.)*(x_)]^2), x_Symbol] :> -Simp[(C*Cos[e + f*x]*(a + b*Sin[e + f*x])^(m + 1))/(b*f*(m + 2)), x] + Dist[1/(b*
(m + 2)), Int[(a + b*Sin[e + f*x])^m*Simp[A*b*(m + 2) + b*C*(m + 1) + (b*B*(m + 2) - a*C)*Sin[e + f*x], x], x]
, x] /; FreeQ[{a, b, e, f, A, B, C, m}, x] &&  !LtQ[m, -1]

Rule 2735

Int[((a_.) + (b_.)*sin[(e_.) + (f_.)*(x_)])/((c_.) + (d_.)*sin[(e_.) + (f_.)*(x_)]), x_Symbol] :> Simp[(b*x)/d
, x] - Dist[(b*c - a*d)/d, Int[1/(c + d*Sin[e + f*x]), x], x] /; FreeQ[{a, b, c, d, e, f}, x] && NeQ[b*c - a*d
, 0]

Rule 3770

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

Rubi steps

\begin{align*} \int (a+b \cos (c+d x))^3 \left (B \cos (c+d x)+C \cos ^2(c+d x)\right ) \sec ^3(c+d x) \, dx &=\int (a+b \cos (c+d x))^3 (B+C \cos (c+d x)) \sec ^2(c+d x) \, dx\\ &=\frac{a B (a+b \cos (c+d x))^2 \tan (c+d x)}{d}+\int (a+b \cos (c+d x)) \left (a (3 b B+a C)+b (b B+2 a C) \cos (c+d x)-b (2 a B-b C) \cos ^2(c+d x)\right ) \sec (c+d x) \, dx\\ &=-\frac{b^2 (2 a B-b C) \cos (c+d x) \sin (c+d x)}{2 d}+\frac{a B (a+b \cos (c+d x))^2 \tan (c+d x)}{d}+\frac{1}{2} \int \left (2 a^2 (3 b B+a C)+b \left (6 a b B+6 a^2 C+b^2 C\right ) \cos (c+d x)-2 b \left (2 a^2 B-b^2 B-3 a b C\right ) \cos ^2(c+d x)\right ) \sec (c+d x) \, dx\\ &=-\frac{b \left (2 a^2 B-b^2 B-3 a b C\right ) \sin (c+d x)}{d}-\frac{b^2 (2 a B-b C) \cos (c+d x) \sin (c+d x)}{2 d}+\frac{a B (a+b \cos (c+d x))^2 \tan (c+d x)}{d}+\frac{1}{2} \int \left (2 a^2 (3 b B+a C)+b \left (6 a b B+6 a^2 C+b^2 C\right ) \cos (c+d x)\right ) \sec (c+d x) \, dx\\ &=\frac{1}{2} b \left (6 a b B+6 a^2 C+b^2 C\right ) x-\frac{b \left (2 a^2 B-b^2 B-3 a b C\right ) \sin (c+d x)}{d}-\frac{b^2 (2 a B-b C) \cos (c+d x) \sin (c+d x)}{2 d}+\frac{a B (a+b \cos (c+d x))^2 \tan (c+d x)}{d}+\left (a^2 (3 b B+a C)\right ) \int \sec (c+d x) \, dx\\ &=\frac{1}{2} b \left (6 a b B+6 a^2 C+b^2 C\right ) x+\frac{a^2 (3 b B+a C) \tanh ^{-1}(\sin (c+d x))}{d}-\frac{b \left (2 a^2 B-b^2 B-3 a b C\right ) \sin (c+d x)}{d}-\frac{b^2 (2 a B-b C) \cos (c+d x) \sin (c+d x)}{2 d}+\frac{a B (a+b \cos (c+d x))^2 \tan (c+d x)}{d}\\ \end{align*}

Mathematica [A]  time = 0.632534, size = 217, normalized size = 1.66 \[ \frac{2 b (c+d x) \left (6 a^2 C+6 a b B+b^2 C\right )-4 a^2 (a C+3 b B) \log \left (\cos \left (\frac{1}{2} (c+d x)\right )-\sin \left (\frac{1}{2} (c+d x)\right )\right )+4 a^2 (a C+3 b B) \log \left (\sin \left (\frac{1}{2} (c+d x)\right )+\cos \left (\frac{1}{2} (c+d x)\right )\right )+\frac{4 a^3 B \sin \left (\frac{1}{2} (c+d x)\right )}{\cos \left (\frac{1}{2} (c+d x)\right )-\sin \left (\frac{1}{2} (c+d x)\right )}+\frac{4 a^3 B \sin \left (\frac{1}{2} (c+d x)\right )}{\sin \left (\frac{1}{2} (c+d x)\right )+\cos \left (\frac{1}{2} (c+d x)\right )}+4 b^2 (3 a C+b B) \sin (c+d x)+b^3 C \sin (2 (c+d x))}{4 d} \]

Antiderivative was successfully verified.

[In]

Integrate[(a + b*Cos[c + d*x])^3*(B*Cos[c + d*x] + C*Cos[c + d*x]^2)*Sec[c + d*x]^3,x]

[Out]

(2*b*(6*a*b*B + 6*a^2*C + b^2*C)*(c + d*x) - 4*a^2*(3*b*B + a*C)*Log[Cos[(c + d*x)/2] - Sin[(c + d*x)/2]] + 4*
a^2*(3*b*B + a*C)*Log[Cos[(c + d*x)/2] + Sin[(c + d*x)/2]] + (4*a^3*B*Sin[(c + d*x)/2])/(Cos[(c + d*x)/2] - Si
n[(c + d*x)/2]) + (4*a^3*B*Sin[(c + d*x)/2])/(Cos[(c + d*x)/2] + Sin[(c + d*x)/2]) + 4*b^2*(b*B + 3*a*C)*Sin[c
+ d*x] + b^3*C*Sin[2*(c + d*x)])/(4*d)

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Maple [A]  time = 0.053, size = 168, normalized size = 1.3 \begin{align*}{\frac{C{b}^{3}\cos \left ( dx+c \right ) \sin \left ( dx+c \right ) }{2\,d}}+{\frac{{b}^{3}Cx}{2}}+{\frac{C{b}^{3}c}{2\,d}}+{\frac{{b}^{3}B\sin \left ( dx+c \right ) }{d}}+3\,{\frac{Ca{b}^{2}\sin \left ( dx+c \right ) }{d}}+3\,a{b}^{2}Bx+3\,{\frac{Ba{b}^{2}c}{d}}+3\,{a}^{2}bCx+3\,{\frac{C{a}^{2}bc}{d}}+3\,{\frac{{a}^{2}bB\ln \left ( \sec \left ( dx+c \right ) +\tan \left ( dx+c \right ) \right ) }{d}}+{\frac{{a}^{3}C\ln \left ( \sec \left ( dx+c \right ) +\tan \left ( dx+c \right ) \right ) }{d}}+{\frac{{a}^{3}B\tan \left ( dx+c \right ) }{d}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((a+b*cos(d*x+c))^3*(B*cos(d*x+c)+C*cos(d*x+c)^2)*sec(d*x+c)^3,x)

[Out]

1/2/d*C*b^3*cos(d*x+c)*sin(d*x+c)+1/2*b^3*C*x+1/2/d*C*b^3*c+1/d*b^3*B*sin(d*x+c)+3/d*C*a*b^2*sin(d*x+c)+3*a*b^
2*B*x+3/d*B*a*b^2*c+3*a^2*b*C*x+3/d*a^2*b*C*c+3/d*a^2*b*B*ln(sec(d*x+c)+tan(d*x+c))+1/d*a^3*C*ln(sec(d*x+c)+ta
n(d*x+c))+1/d*a^3*B*tan(d*x+c)

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Maxima [A]  time = 1.01296, size = 194, normalized size = 1.48 \begin{align*} \frac{12 \,{\left (d x + c\right )} C a^{2} b + 12 \,{\left (d x + c\right )} B a b^{2} +{\left (2 \, d x + 2 \, c + \sin \left (2 \, d x + 2 \, c\right )\right )} C b^{3} + 2 \, C a^{3}{\left (\log \left (\sin \left (d x + c\right ) + 1\right ) - \log \left (\sin \left (d x + c\right ) - 1\right )\right )} + 6 \, B a^{2} b{\left (\log \left (\sin \left (d x + c\right ) + 1\right ) - \log \left (\sin \left (d x + c\right ) - 1\right )\right )} + 12 \, C a b^{2} \sin \left (d x + c\right ) + 4 \, B b^{3} \sin \left (d x + c\right ) + 4 \, B a^{3} \tan \left (d x + c\right )}{4 \, d} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a+b*cos(d*x+c))^3*(B*cos(d*x+c)+C*cos(d*x+c)^2)*sec(d*x+c)^3,x, algorithm="maxima")

[Out]

1/4*(12*(d*x + c)*C*a^2*b + 12*(d*x + c)*B*a*b^2 + (2*d*x + 2*c + sin(2*d*x + 2*c))*C*b^3 + 2*C*a^3*(log(sin(d
*x + c) + 1) - log(sin(d*x + c) - 1)) + 6*B*a^2*b*(log(sin(d*x + c) + 1) - log(sin(d*x + c) - 1)) + 12*C*a*b^2
*sin(d*x + c) + 4*B*b^3*sin(d*x + c) + 4*B*a^3*tan(d*x + c))/d

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Fricas [A]  time = 1.45581, size = 369, normalized size = 2.82 \begin{align*} \frac{{\left (6 \, C a^{2} b + 6 \, B a b^{2} + C b^{3}\right )} d x \cos \left (d x + c\right ) +{\left (C a^{3} + 3 \, B a^{2} b\right )} \cos \left (d x + c\right ) \log \left (\sin \left (d x + c\right ) + 1\right ) -{\left (C a^{3} + 3 \, B a^{2} b\right )} \cos \left (d x + c\right ) \log \left (-\sin \left (d x + c\right ) + 1\right ) +{\left (C b^{3} \cos \left (d x + c\right )^{2} + 2 \, B a^{3} + 2 \,{\left (3 \, C a b^{2} + B b^{3}\right )} \cos \left (d x + c\right )\right )} \sin \left (d x + c\right )}{2 \, d \cos \left (d x + c\right )} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a+b*cos(d*x+c))^3*(B*cos(d*x+c)+C*cos(d*x+c)^2)*sec(d*x+c)^3,x, algorithm="fricas")

[Out]

1/2*((6*C*a^2*b + 6*B*a*b^2 + C*b^3)*d*x*cos(d*x + c) + (C*a^3 + 3*B*a^2*b)*cos(d*x + c)*log(sin(d*x + c) + 1)
- (C*a^3 + 3*B*a^2*b)*cos(d*x + c)*log(-sin(d*x + c) + 1) + (C*b^3*cos(d*x + c)^2 + 2*B*a^3 + 2*(3*C*a*b^2 +
B*b^3)*cos(d*x + c))*sin(d*x + c))/(d*cos(d*x + c))

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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((a+b*cos(d*x+c))**3*(B*cos(d*x+c)+C*cos(d*x+c)**2)*sec(d*x+c)**3,x)

[Out]

Timed out

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Giac [A]  time = 1.43093, size = 316, normalized size = 2.41 \begin{align*} -\frac{\frac{4 \, B a^{3} \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )}{\tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )^{2} - 1} -{\left (6 \, C a^{2} b + 6 \, B a b^{2} + C b^{3}\right )}{\left (d x + c\right )} - 2 \,{\left (C a^{3} + 3 \, B a^{2} b\right )} \log \left ({\left | \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right ) + 1 \right |}\right ) + 2 \,{\left (C a^{3} + 3 \, B a^{2} b\right )} \log \left ({\left | \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right ) - 1 \right |}\right ) - \frac{2 \,{\left (6 \, C a b^{2} \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )^{3} + 2 \, B b^{3} \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )^{3} - C b^{3} \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )^{3} + 6 \, C a b^{2} \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right ) + 2 \, B b^{3} \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right ) + C b^{3} \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )\right )}}{{\left (\tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )^{2} + 1\right )}^{2}}}{2 \, d} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a+b*cos(d*x+c))^3*(B*cos(d*x+c)+C*cos(d*x+c)^2)*sec(d*x+c)^3,x, algorithm="giac")

[Out]

-1/2*(4*B*a^3*tan(1/2*d*x + 1/2*c)/(tan(1/2*d*x + 1/2*c)^2 - 1) - (6*C*a^2*b + 6*B*a*b^2 + C*b^3)*(d*x + c) -
2*(C*a^3 + 3*B*a^2*b)*log(abs(tan(1/2*d*x + 1/2*c) + 1)) + 2*(C*a^3 + 3*B*a^2*b)*log(abs(tan(1/2*d*x + 1/2*c)
- 1)) - 2*(6*C*a*b^2*tan(1/2*d*x + 1/2*c)^3 + 2*B*b^3*tan(1/2*d*x + 1/2*c)^3 - C*b^3*tan(1/2*d*x + 1/2*c)^3 +
6*C*a*b^2*tan(1/2*d*x + 1/2*c) + 2*B*b^3*tan(1/2*d*x + 1/2*c) + C*b^3*tan(1/2*d*x + 1/2*c))/(tan(1/2*d*x + 1/2
*c)^2 + 1)^2)/d