3.12 \(\int (a+a \cos (c+d x))^2 (A+C \cos ^2(c+d x)) \sec (c+d x) \, dx\)

Optimal. Leaf size=96 \[ \frac{a^2 (A+C) \sin (c+d x)}{d}+\frac{a^2 A \tanh ^{-1}(\sin (c+d x))}{d}+a^2 x (2 A+C)+\frac{C \sin (c+d x) \left (a^2 \cos (c+d x)+a^2\right )}{3 d}+\frac{C \sin (c+d x) (a \cos (c+d x)+a)^2}{3 d} \]

[Out]

a^2*(2*A + C)*x + (a^2*A*ArcTanh[Sin[c + d*x]])/d + (a^2*(A + C)*Sin[c + d*x])/d + (C*(a + a*Cos[c + d*x])^2*S
in[c + d*x])/(3*d) + (C*(a^2 + a^2*Cos[c + d*x])*Sin[c + d*x])/(3*d)

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Rubi [A]  time = 0.298016, antiderivative size = 96, normalized size of antiderivative = 1., number of steps used = 6, number of rules used = 6, integrand size = 31, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.194, Rules used = {3046, 2976, 2968, 3023, 2735, 3770} \[ \frac{a^2 (A+C) \sin (c+d x)}{d}+\frac{a^2 A \tanh ^{-1}(\sin (c+d x))}{d}+a^2 x (2 A+C)+\frac{C \sin (c+d x) \left (a^2 \cos (c+d x)+a^2\right )}{3 d}+\frac{C \sin (c+d x) (a \cos (c+d x)+a)^2}{3 d} \]

Antiderivative was successfully verified.

[In]

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

[Out]

a^2*(2*A + C)*x + (a^2*A*ArcTanh[Sin[c + d*x]])/d + (a^2*(A + C)*Sin[c + d*x])/d + (C*(a + a*Cos[c + d*x])^2*S
in[c + d*x])/(3*d) + (C*(a^2 + a^2*Cos[c + d*x])*Sin[c + d*x])/(3*d)

Rule 3046

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

Rule 2976

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*B*Cos[e + f*x]*(a + b*Sin[e + f*x])^(m - 1)*(c + d*Sin[e + f*x])
^(n + 1))/(d*f*(m + n + 1)), x] + Dist[1/(d*(m + n + 1)), Int[(a + b*Sin[e + f*x])^(m - 1)*(c + d*Sin[e + f*x]
)^n*Simp[a*A*d*(m + n + 1) + B*(a*c*(m - 1) + b*d*(n + 1)) + (A*b*d*(m + n + 1) - B*(b*c*m - a*d*(2*m + n)))*S
in[e + f*x], x], x], x] /; FreeQ[{a, b, c, d, e, f, A, B, n}, x] && NeQ[b*c - a*d, 0] && EqQ[a^2 - b^2, 0] &&
NeQ[c^2 - d^2, 0] && GtQ[m, 1/2] &&  !LtQ[n, -1] && IntegerQ[2*m] && (IntegerQ[2*n] || EqQ[c, 0])

Rule 2968

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

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

Mathematica [A]  time = 0.220093, size = 109, normalized size = 1.14 \[ \frac{a^2 \left (3 (4 A+7 C) \sin (c+d x)-12 A \log \left (\cos \left (\frac{1}{2} (c+d x)\right )-\sin \left (\frac{1}{2} (c+d x)\right )\right )+12 A \log \left (\sin \left (\frac{1}{2} (c+d x)\right )+\cos \left (\frac{1}{2} (c+d x)\right )\right )+24 A d x+6 C \sin (2 (c+d x))+C \sin (3 (c+d x))+12 C d x\right )}{12 d} \]

Antiderivative was successfully verified.

[In]

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

[Out]

(a^2*(24*A*d*x + 12*C*d*x - 12*A*Log[Cos[(c + d*x)/2] - Sin[(c + d*x)/2]] + 12*A*Log[Cos[(c + d*x)/2] + Sin[(c
+ d*x)/2]] + 3*(4*A + 7*C)*Sin[c + d*x] + 6*C*Sin[2*(c + d*x)] + C*Sin[3*(c + d*x)]))/(12*d)

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Maple [A]  time = 0.055, size = 128, normalized size = 1.3 \begin{align*}{\frac{A{a}^{2}\sin \left ( dx+c \right ) }{d}}+{\frac{C\sin \left ( dx+c \right ) \left ( \cos \left ( dx+c \right ) \right ) ^{2}{a}^{2}}{3\,d}}+{\frac{5\,{a}^{2}C\sin \left ( dx+c \right ) }{3\,d}}+2\,A{a}^{2}x+2\,{\frac{A{a}^{2}c}{d}}+{\frac{{a}^{2}C\cos \left ( dx+c \right ) \sin \left ( dx+c \right ) }{d}}+{a}^{2}Cx+{\frac{{a}^{2}Cc}{d}}+{\frac{A{a}^{2}\ln \left ( \sec \left ( dx+c \right ) +\tan \left ( dx+c \right ) \right ) }{d}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((a+a*cos(d*x+c))^2*(A+C*cos(d*x+c)^2)*sec(d*x+c),x)

[Out]

1/d*A*a^2*sin(d*x+c)+1/3/d*C*sin(d*x+c)*cos(d*x+c)^2*a^2+5/3/d*a^2*C*sin(d*x+c)+2*A*a^2*x+2/d*A*a^2*c+1/d*a^2*
C*cos(d*x+c)*sin(d*x+c)+a^2*C*x+1/d*a^2*C*c+1/d*A*a^2*ln(sec(d*x+c)+tan(d*x+c))

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Maxima [A]  time = 1.01176, size = 144, normalized size = 1.5 \begin{align*} \frac{12 \,{\left (d x + c\right )} A a^{2} - 2 \,{\left (\sin \left (d x + c\right )^{3} - 3 \, \sin \left (d x + c\right )\right )} C a^{2} + 3 \,{\left (2 \, d x + 2 \, c + \sin \left (2 \, d x + 2 \, c\right )\right )} C a^{2} + 6 \, A a^{2} \log \left (\sec \left (d x + c\right ) + \tan \left (d x + c\right )\right ) + 6 \, A a^{2} \sin \left (d x + c\right ) + 6 \, C a^{2} \sin \left (d x + c\right )}{6 \, d} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

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

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Fricas [A]  time = 1.45344, size = 236, normalized size = 2.46 \begin{align*} \frac{6 \,{\left (2 \, A + C\right )} a^{2} d x + 3 \, A a^{2} \log \left (\sin \left (d x + c\right ) + 1\right ) - 3 \, A a^{2} \log \left (-\sin \left (d x + c\right ) + 1\right ) + 2 \,{\left (C a^{2} \cos \left (d x + c\right )^{2} + 3 \, C a^{2} \cos \left (d x + c\right ) +{\left (3 \, A + 5 \, C\right )} a^{2}\right )} \sin \left (d x + c\right )}{6 \, d} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

1/6*(6*(2*A + C)*a^2*d*x + 3*A*a^2*log(sin(d*x + c) + 1) - 3*A*a^2*log(-sin(d*x + c) + 1) + 2*(C*a^2*cos(d*x +
c)^2 + 3*C*a^2*cos(d*x + c) + (3*A + 5*C)*a^2)*sin(d*x + c))/d

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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+a*cos(d*x+c))**2*(A+C*cos(d*x+c)**2)*sec(d*x+c),x)

[Out]

Timed out

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Giac [A]  time = 1.19238, size = 242, normalized size = 2.52 \begin{align*} \frac{3 \, A a^{2} \log \left ({\left | \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right ) + 1 \right |}\right ) - 3 \, A a^{2} \log \left ({\left | \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right ) - 1 \right |}\right ) + 3 \,{\left (2 \, A a^{2} + C a^{2}\right )}{\left (d x + c\right )} + \frac{2 \,{\left (3 \, A a^{2} \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )^{5} + 3 \, C a^{2} \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )^{5} + 6 \, A a^{2} \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )^{3} + 8 \, C a^{2} \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )^{3} + 3 \, A a^{2} \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right ) + 9 \, C a^{2} \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 )}^{3}}}{3 \, d} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

1/3*(3*A*a^2*log(abs(tan(1/2*d*x + 1/2*c) + 1)) - 3*A*a^2*log(abs(tan(1/2*d*x + 1/2*c) - 1)) + 3*(2*A*a^2 + C*
a^2)*(d*x + c) + 2*(3*A*a^2*tan(1/2*d*x + 1/2*c)^5 + 3*C*a^2*tan(1/2*d*x + 1/2*c)^5 + 6*A*a^2*tan(1/2*d*x + 1/
2*c)^3 + 8*C*a^2*tan(1/2*d*x + 1/2*c)^3 + 3*A*a^2*tan(1/2*d*x + 1/2*c) + 9*C*a^2*tan(1/2*d*x + 1/2*c))/(tan(1/
2*d*x + 1/2*c)^2 + 1)^3)/d