3.69 \(\int \frac{A+C \cos ^2(c+d x)}{(a+a \cos (c+d x))^4} \, dx\)

Optimal. Leaf size=136 \[ \frac{(6 A+13 C) \sin (c+d x)}{105 d \left (a^4 \cos (c+d x)+a^4\right )}+\frac{(6 A+13 C) \sin (c+d x)}{105 d \left (a^2 \cos (c+d x)+a^2\right )^2}+\frac{(3 A-11 C) \sin (c+d x)}{35 a d (a \cos (c+d x)+a)^3}+\frac{(A+C) \sin (c+d x)}{7 d (a \cos (c+d x)+a)^4} \]

[Out]

((A + C)*Sin[c + d*x])/(7*d*(a + a*Cos[c + d*x])^4) + ((3*A - 11*C)*Sin[c + d*x])/(35*a*d*(a + a*Cos[c + d*x])
^3) + ((6*A + 13*C)*Sin[c + d*x])/(105*d*(a^2 + a^2*Cos[c + d*x])^2) + ((6*A + 13*C)*Sin[c + d*x])/(105*d*(a^4
+ a^4*Cos[c + d*x]))

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Rubi [A]  time = 0.170927, antiderivative size = 136, normalized size of antiderivative = 1., number of steps used = 4, number of rules used = 4, integrand size = 25, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.16, Rules used = {3020, 2750, 2650, 2648} \[ \frac{(6 A+13 C) \sin (c+d x)}{105 d \left (a^4 \cos (c+d x)+a^4\right )}+\frac{(6 A+13 C) \sin (c+d x)}{105 d \left (a^2 \cos (c+d x)+a^2\right )^2}+\frac{(3 A-11 C) \sin (c+d x)}{35 a d (a \cos (c+d x)+a)^3}+\frac{(A+C) \sin (c+d x)}{7 d (a \cos (c+d x)+a)^4} \]

Antiderivative was successfully verified.

[In]

Int[(A + C*Cos[c + d*x]^2)/(a + a*Cos[c + d*x])^4,x]

[Out]

((A + C)*Sin[c + d*x])/(7*d*(a + a*Cos[c + d*x])^4) + ((3*A - 11*C)*Sin[c + d*x])/(35*a*d*(a + a*Cos[c + d*x])
^3) + ((6*A + 13*C)*Sin[c + d*x])/(105*d*(a^2 + a^2*Cos[c + d*x])^2) + ((6*A + 13*C)*Sin[c + d*x])/(105*d*(a^4
+ a^4*Cos[c + d*x]))

Rule 3020

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

Rule 2750

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

Rule 2650

Int[((a_) + (b_.)*sin[(c_.) + (d_.)*(x_)])^(n_), x_Symbol] :> Simp[(b*Cos[c + d*x]*(a + b*Sin[c + d*x])^n)/(a*
d*(2*n + 1)), x] + Dist[(n + 1)/(a*(2*n + 1)), Int[(a + b*Sin[c + d*x])^(n + 1), x], x] /; FreeQ[{a, b, c, d},
x] && EqQ[a^2 - b^2, 0] && LtQ[n, -1] && IntegerQ[2*n]

Rule 2648

Int[((a_) + (b_.)*sin[(c_.) + (d_.)*(x_)])^(-1), x_Symbol] :> -Simp[Cos[c + d*x]/(d*(b + a*Sin[c + d*x])), x]
/; FreeQ[{a, b, c, d}, x] && EqQ[a^2 - b^2, 0]

Rubi steps

\begin{align*} \int \frac{A+C \cos ^2(c+d x)}{(a+a \cos (c+d x))^4} \, dx &=\frac{(A+C) \sin (c+d x)}{7 d (a+a \cos (c+d x))^4}-\frac{\int \frac{-a (3 A-4 C)-7 a C \cos (c+d x)}{(a+a \cos (c+d x))^3} \, dx}{7 a^2}\\ &=\frac{(A+C) \sin (c+d x)}{7 d (a+a \cos (c+d x))^4}+\frac{(3 A-11 C) \sin (c+d x)}{35 a d (a+a \cos (c+d x))^3}+\frac{(6 A+13 C) \int \frac{1}{(a+a \cos (c+d x))^2} \, dx}{35 a^2}\\ &=\frac{(A+C) \sin (c+d x)}{7 d (a+a \cos (c+d x))^4}+\frac{(3 A-11 C) \sin (c+d x)}{35 a d (a+a \cos (c+d x))^3}+\frac{(6 A+13 C) \sin (c+d x)}{105 d \left (a^2+a^2 \cos (c+d x)\right )^2}+\frac{(6 A+13 C) \int \frac{1}{a+a \cos (c+d x)} \, dx}{105 a^3}\\ &=\frac{(A+C) \sin (c+d x)}{7 d (a+a \cos (c+d x))^4}+\frac{(3 A-11 C) \sin (c+d x)}{35 a d (a+a \cos (c+d x))^3}+\frac{(6 A+13 C) \sin (c+d x)}{105 d \left (a^2+a^2 \cos (c+d x)\right )^2}+\frac{(6 A+13 C) \sin (c+d x)}{105 d \left (a^4+a^4 \cos (c+d x)\right )}\\ \end{align*}

Mathematica [A]  time = 0.354827, size = 159, normalized size = 1.17 \[ \frac{\sec \left (\frac{c}{2}\right ) \cos \left (\frac{1}{2} (c+d x)\right ) \left (126 A \sin \left (c+\frac{3 d x}{2}\right )+42 A \sin \left (2 c+\frac{5 d x}{2}\right )+6 A \sin \left (3 c+\frac{7 d x}{2}\right )+70 (3 A+4 C) \sin \left (\frac{d x}{2}\right )-175 C \sin \left (c+\frac{d x}{2}\right )+168 C \sin \left (c+\frac{3 d x}{2}\right )-105 C \sin \left (2 c+\frac{3 d x}{2}\right )+91 C \sin \left (2 c+\frac{5 d x}{2}\right )+13 C \sin \left (3 c+\frac{7 d x}{2}\right )\right )}{420 a^4 d (\cos (c+d x)+1)^4} \]

Antiderivative was successfully verified.

[In]

Integrate[(A + C*Cos[c + d*x]^2)/(a + a*Cos[c + d*x])^4,x]

[Out]

(Cos[(c + d*x)/2]*Sec[c/2]*(70*(3*A + 4*C)*Sin[(d*x)/2] - 175*C*Sin[c + (d*x)/2] + 126*A*Sin[c + (3*d*x)/2] +
168*C*Sin[c + (3*d*x)/2] - 105*C*Sin[2*c + (3*d*x)/2] + 42*A*Sin[2*c + (5*d*x)/2] + 91*C*Sin[2*c + (5*d*x)/2]
+ 6*A*Sin[3*c + (7*d*x)/2] + 13*C*Sin[3*c + (7*d*x)/2]))/(420*a^4*d*(1 + Cos[c + d*x])^4)

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Maple [A]  time = 0.023, size = 88, normalized size = 0.7 \begin{align*}{\frac{1}{8\,d{a}^{4}} \left ({\frac{A+C}{7} \left ( \tan \left ({\frac{dx}{2}}+{\frac{c}{2}} \right ) \right ) ^{7}}+{\frac{3\,A-C}{5} \left ( \tan \left ({\frac{dx}{2}}+{\frac{c}{2}} \right ) \right ) ^{5}}+{\frac{3\,A-C}{3} \left ( \tan \left ({\frac{dx}{2}}+{\frac{c}{2}} \right ) \right ) ^{3}}+A\tan \left ({\frac{dx}{2}}+{\frac{c}{2}} \right ) +C\tan \left ({\frac{dx}{2}}+{\frac{c}{2}} \right ) \right ) } \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((A+C*cos(d*x+c)^2)/(a+a*cos(d*x+c))^4,x)

[Out]

1/8/d/a^4*(1/7*(A+C)*tan(1/2*d*x+1/2*c)^7+1/5*(3*A-C)*tan(1/2*d*x+1/2*c)^5+1/3*(3*A-C)*tan(1/2*d*x+1/2*c)^3+A*
tan(1/2*d*x+1/2*c)+C*tan(1/2*d*x+1/2*c))

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Maxima [A]  time = 1.02696, size = 236, normalized size = 1.74 \begin{align*} \frac{\frac{C{\left (\frac{105 \, \sin \left (d x + c\right )}{\cos \left (d x + c\right ) + 1} - \frac{35 \, \sin \left (d x + c\right )^{3}}{{\left (\cos \left (d x + c\right ) + 1\right )}^{3}} - \frac{21 \, \sin \left (d x + c\right )^{5}}{{\left (\cos \left (d x + c\right ) + 1\right )}^{5}} + \frac{15 \, \sin \left (d x + c\right )^{7}}{{\left (\cos \left (d x + c\right ) + 1\right )}^{7}}\right )}}{a^{4}} + \frac{3 \, A{\left (\frac{35 \, \sin \left (d x + c\right )}{\cos \left (d x + c\right ) + 1} + \frac{35 \, \sin \left (d x + c\right )^{3}}{{\left (\cos \left (d x + c\right ) + 1\right )}^{3}} + \frac{21 \, \sin \left (d x + c\right )^{5}}{{\left (\cos \left (d x + c\right ) + 1\right )}^{5}} + \frac{5 \, \sin \left (d x + c\right )^{7}}{{\left (\cos \left (d x + c\right ) + 1\right )}^{7}}\right )}}{a^{4}}}{840 \, d} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((A+C*cos(d*x+c)^2)/(a+a*cos(d*x+c))^4,x, algorithm="maxima")

[Out]

1/840*(C*(105*sin(d*x + c)/(cos(d*x + c) + 1) - 35*sin(d*x + c)^3/(cos(d*x + c) + 1)^3 - 21*sin(d*x + c)^5/(co
s(d*x + c) + 1)^5 + 15*sin(d*x + c)^7/(cos(d*x + c) + 1)^7)/a^4 + 3*A*(35*sin(d*x + c)/(cos(d*x + c) + 1) + 35
*sin(d*x + c)^3/(cos(d*x + c) + 1)^3 + 21*sin(d*x + c)^5/(cos(d*x + c) + 1)^5 + 5*sin(d*x + c)^7/(cos(d*x + c)
+ 1)^7)/a^4)/d

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Fricas [A]  time = 1.27544, size = 308, normalized size = 2.26 \begin{align*} \frac{{\left ({\left (6 \, A + 13 \, C\right )} \cos \left (d x + c\right )^{3} + 4 \,{\left (6 \, A + 13 \, C\right )} \cos \left (d x + c\right )^{2} +{\left (39 \, A + 32 \, C\right )} \cos \left (d x + c\right ) + 36 \, A + 8 \, C\right )} \sin \left (d x + c\right )}{105 \,{\left (a^{4} d \cos \left (d x + c\right )^{4} + 4 \, a^{4} d \cos \left (d x + c\right )^{3} + 6 \, a^{4} d \cos \left (d x + c\right )^{2} + 4 \, a^{4} d \cos \left (d x + c\right ) + a^{4} d\right )}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((A+C*cos(d*x+c)^2)/(a+a*cos(d*x+c))^4,x, algorithm="fricas")

[Out]

1/105*((6*A + 13*C)*cos(d*x + c)^3 + 4*(6*A + 13*C)*cos(d*x + c)^2 + (39*A + 32*C)*cos(d*x + c) + 36*A + 8*C)*
sin(d*x + c)/(a^4*d*cos(d*x + c)^4 + 4*a^4*d*cos(d*x + c)^3 + 6*a^4*d*cos(d*x + c)^2 + 4*a^4*d*cos(d*x + c) +
a^4*d)

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Sympy [A]  time = 11.3982, size = 178, normalized size = 1.31 \begin{align*} \begin{cases} \frac{A \tan ^{7}{\left (\frac{c}{2} + \frac{d x}{2} \right )}}{56 a^{4} d} + \frac{3 A \tan ^{5}{\left (\frac{c}{2} + \frac{d x}{2} \right )}}{40 a^{4} d} + \frac{A \tan ^{3}{\left (\frac{c}{2} + \frac{d x}{2} \right )}}{8 a^{4} d} + \frac{A \tan{\left (\frac{c}{2} + \frac{d x}{2} \right )}}{8 a^{4} d} + \frac{C \tan ^{7}{\left (\frac{c}{2} + \frac{d x}{2} \right )}}{56 a^{4} d} - \frac{C \tan ^{5}{\left (\frac{c}{2} + \frac{d x}{2} \right )}}{40 a^{4} d} - \frac{C \tan ^{3}{\left (\frac{c}{2} + \frac{d x}{2} \right )}}{24 a^{4} d} + \frac{C \tan{\left (\frac{c}{2} + \frac{d x}{2} \right )}}{8 a^{4} d} & \text{for}\: d \neq 0 \\\frac{x \left (A + C \cos ^{2}{\left (c \right )}\right )}{\left (a \cos{\left (c \right )} + a\right )^{4}} & \text{otherwise} \end{cases} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((A+C*cos(d*x+c)**2)/(a+a*cos(d*x+c))**4,x)

[Out]

Piecewise((A*tan(c/2 + d*x/2)**7/(56*a**4*d) + 3*A*tan(c/2 + d*x/2)**5/(40*a**4*d) + A*tan(c/2 + d*x/2)**3/(8*
a**4*d) + A*tan(c/2 + d*x/2)/(8*a**4*d) + C*tan(c/2 + d*x/2)**7/(56*a**4*d) - C*tan(c/2 + d*x/2)**5/(40*a**4*d
) - C*tan(c/2 + d*x/2)**3/(24*a**4*d) + C*tan(c/2 + d*x/2)/(8*a**4*d), Ne(d, 0)), (x*(A + C*cos(c)**2)/(a*cos(
c) + a)**4, True))

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Giac [A]  time = 1.15321, size = 158, normalized size = 1.16 \begin{align*} \frac{15 \, A \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )^{7} + 15 \, C \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )^{7} + 63 \, A \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )^{5} - 21 \, C \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )^{5} + 105 \, A \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )^{3} - 35 \, C \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )^{3} + 105 \, A \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right ) + 105 \, C \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )}{840 \, a^{4} d} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((A+C*cos(d*x+c)^2)/(a+a*cos(d*x+c))^4,x, algorithm="giac")

[Out]

1/840*(15*A*tan(1/2*d*x + 1/2*c)^7 + 15*C*tan(1/2*d*x + 1/2*c)^7 + 63*A*tan(1/2*d*x + 1/2*c)^5 - 21*C*tan(1/2*
d*x + 1/2*c)^5 + 105*A*tan(1/2*d*x + 1/2*c)^3 - 35*C*tan(1/2*d*x + 1/2*c)^3 + 105*A*tan(1/2*d*x + 1/2*c) + 105
*C*tan(1/2*d*x + 1/2*c))/(a^4*d)