3.57 \(\int \frac{\sin ^9(c+d x)}{a+a \sec (c+d x)} \, dx\)

Optimal. Leaf size=91 \[ \frac{\sin ^8(c+d x)}{8 a d}-\frac{\cos ^9(c+d x)}{9 a d}+\frac{3 \cos ^7(c+d x)}{7 a d}-\frac{3 \cos ^5(c+d x)}{5 a d}+\frac{\cos ^3(c+d x)}{3 a d} \]

[Out]

Cos[c + d*x]^3/(3*a*d) - (3*Cos[c + d*x]^5)/(5*a*d) + (3*Cos[c + d*x]^7)/(7*a*d) - Cos[c + d*x]^9/(9*a*d) + Si
n[c + d*x]^8/(8*a*d)

________________________________________________________________________________________

Rubi [A]  time = 0.161202, antiderivative size = 91, normalized size of antiderivative = 1., number of steps used = 7, number of rules used = 6, integrand size = 21, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.286, Rules used = {3872, 2835, 2564, 30, 2565, 270} \[ \frac{\sin ^8(c+d x)}{8 a d}-\frac{\cos ^9(c+d x)}{9 a d}+\frac{3 \cos ^7(c+d x)}{7 a d}-\frac{3 \cos ^5(c+d x)}{5 a d}+\frac{\cos ^3(c+d x)}{3 a d} \]

Antiderivative was successfully verified.

[In]

Int[Sin[c + d*x]^9/(a + a*Sec[c + d*x]),x]

[Out]

Cos[c + d*x]^3/(3*a*d) - (3*Cos[c + d*x]^5)/(5*a*d) + (3*Cos[c + d*x]^7)/(7*a*d) - Cos[c + d*x]^9/(9*a*d) + Si
n[c + d*x]^8/(8*a*d)

Rule 3872

Int[(cos[(e_.) + (f_.)*(x_)]*(g_.))^(p_.)*(csc[(e_.) + (f_.)*(x_)]*(b_.) + (a_))^(m_.), x_Symbol] :> Int[((g*C
os[e + f*x])^p*(b + a*Sin[e + f*x])^m)/Sin[e + f*x]^m, x] /; FreeQ[{a, b, e, f, g, p}, x] && IntegerQ[m]

Rule 2835

Int[(cos[(e_.) + (f_.)*(x_)]^(p_)*((d_.)*sin[(e_.) + (f_.)*(x_)])^(n_.))/((a_) + (b_.)*sin[(e_.) + (f_.)*(x_)]
), x_Symbol] :> Dist[1/a, Int[Cos[e + f*x]^(p - 2)*(d*Sin[e + f*x])^n, x], x] - Dist[1/(b*d), Int[Cos[e + f*x]
^(p - 2)*(d*Sin[e + f*x])^(n + 1), x], x] /; FreeQ[{a, b, d, e, f, n, p}, x] && IntegerQ[(p - 1)/2] && EqQ[a^2
- b^2, 0] && IntegerQ[n] && (LtQ[0, n, (p + 1)/2] || (LeQ[p, -n] && LtQ[-n, 2*p - 3]) || (GtQ[n, 0] && LeQ[n,
-p]))

Rule 2564

Int[cos[(e_.) + (f_.)*(x_)]^(n_.)*((a_.)*sin[(e_.) + (f_.)*(x_)])^(m_.), x_Symbol] :> Dist[1/(a*f), Subst[Int[
x^m*(1 - x^2/a^2)^((n - 1)/2), x], x, a*Sin[e + f*x]], x] /; FreeQ[{a, e, f, m}, x] && IntegerQ[(n - 1)/2] &&
!(IntegerQ[(m - 1)/2] && LtQ[0, m, n])

Rule 30

Int[(x_)^(m_.), x_Symbol] :> Simp[x^(m + 1)/(m + 1), x] /; FreeQ[m, x] && NeQ[m, -1]

Rule 2565

Int[(cos[(e_.) + (f_.)*(x_)]*(a_.))^(m_.)*sin[(e_.) + (f_.)*(x_)]^(n_.), x_Symbol] :> -Dist[(a*f)^(-1), Subst[
Int[x^m*(1 - x^2/a^2)^((n - 1)/2), x], x, a*Cos[e + f*x]], x] /; FreeQ[{a, e, f, m}, x] && IntegerQ[(n - 1)/2]
&&  !(IntegerQ[(m - 1)/2] && GtQ[m, 0] && LeQ[m, n])

Rule 270

Int[((c_.)*(x_))^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_.), x_Symbol] :> Int[ExpandIntegrand[(c*x)^m*(a + b*x^n)^p,
x], x] /; FreeQ[{a, b, c, m, n}, x] && IGtQ[p, 0]

Rubi steps

\begin{align*} \int \frac{\sin ^9(c+d x)}{a+a \sec (c+d x)} \, dx &=-\int \frac{\cos (c+d x) \sin ^9(c+d x)}{-a-a \cos (c+d x)} \, dx\\ &=\frac{\int \cos (c+d x) \sin ^7(c+d x) \, dx}{a}-\frac{\int \cos ^2(c+d x) \sin ^7(c+d x) \, dx}{a}\\ &=\frac{\operatorname{Subst}\left (\int x^7 \, dx,x,\sin (c+d x)\right )}{a d}+\frac{\operatorname{Subst}\left (\int x^2 \left (1-x^2\right )^3 \, dx,x,\cos (c+d x)\right )}{a d}\\ &=\frac{\sin ^8(c+d x)}{8 a d}+\frac{\operatorname{Subst}\left (\int \left (x^2-3 x^4+3 x^6-x^8\right ) \, dx,x,\cos (c+d x)\right )}{a d}\\ &=\frac{\cos ^3(c+d x)}{3 a d}-\frac{3 \cos ^5(c+d x)}{5 a d}+\frac{3 \cos ^7(c+d x)}{7 a d}-\frac{\cos ^9(c+d x)}{9 a d}+\frac{\sin ^8(c+d x)}{8 a d}\\ \end{align*}

Mathematica [A]  time = 4.23403, size = 62, normalized size = 0.68 \[ \frac{\sin ^{10}\left (\frac{1}{2} (c+d x)\right ) (6995 \cos (c+d x)+3650 \cos (2 (c+d x))+1085 \cos (3 (c+d x))+140 \cos (4 (c+d x))+4258)}{315 a d} \]

Antiderivative was successfully verified.

[In]

Integrate[Sin[c + d*x]^9/(a + a*Sec[c + d*x]),x]

[Out]

((4258 + 6995*Cos[c + d*x] + 3650*Cos[2*(c + d*x)] + 1085*Cos[3*(c + d*x)] + 140*Cos[4*(c + d*x)])*Sin[(c + d*
x)/2]^10)/(315*a*d)

________________________________________________________________________________________

Maple [A]  time = 0.098, size = 89, normalized size = 1. \begin{align*}{\frac{1}{da} \left ({\frac{1}{3\, \left ( \sec \left ( dx+c \right ) \right ) ^{3}}}-{\frac{1}{2\, \left ( \sec \left ( dx+c \right ) \right ) ^{6}}}-{\frac{1}{2\, \left ( \sec \left ( dx+c \right ) \right ) ^{2}}}+{\frac{1}{8\, \left ( \sec \left ( dx+c \right ) \right ) ^{8}}}+{\frac{3}{4\, \left ( \sec \left ( dx+c \right ) \right ) ^{4}}}-{\frac{3}{5\, \left ( \sec \left ( dx+c \right ) \right ) ^{5}}}+{\frac{3}{7\, \left ( \sec \left ( dx+c \right ) \right ) ^{7}}}-{\frac{1}{9\, \left ( \sec \left ( dx+c \right ) \right ) ^{9}}} \right ) } \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(sin(d*x+c)^9/(a+a*sec(d*x+c)),x)

[Out]

1/d/a*(1/3/sec(d*x+c)^3-1/2/sec(d*x+c)^6-1/2/sec(d*x+c)^2+1/8/sec(d*x+c)^8+3/4/sec(d*x+c)^4-3/5/sec(d*x+c)^5+3
/7/sec(d*x+c)^7-1/9/sec(d*x+c)^9)

________________________________________________________________________________________

Maxima [A]  time = 0.988516, size = 120, normalized size = 1.32 \begin{align*} -\frac{280 \, \cos \left (d x + c\right )^{9} - 315 \, \cos \left (d x + c\right )^{8} - 1080 \, \cos \left (d x + c\right )^{7} + 1260 \, \cos \left (d x + c\right )^{6} + 1512 \, \cos \left (d x + c\right )^{5} - 1890 \, \cos \left (d x + c\right )^{4} - 840 \, \cos \left (d x + c\right )^{3} + 1260 \, \cos \left (d x + c\right )^{2}}{2520 \, a d} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(sin(d*x+c)^9/(a+a*sec(d*x+c)),x, algorithm="maxima")

[Out]

-1/2520*(280*cos(d*x + c)^9 - 315*cos(d*x + c)^8 - 1080*cos(d*x + c)^7 + 1260*cos(d*x + c)^6 + 1512*cos(d*x +
c)^5 - 1890*cos(d*x + c)^4 - 840*cos(d*x + c)^3 + 1260*cos(d*x + c)^2)/(a*d)

________________________________________________________________________________________

Fricas [A]  time = 1.74285, size = 254, normalized size = 2.79 \begin{align*} -\frac{280 \, \cos \left (d x + c\right )^{9} - 315 \, \cos \left (d x + c\right )^{8} - 1080 \, \cos \left (d x + c\right )^{7} + 1260 \, \cos \left (d x + c\right )^{6} + 1512 \, \cos \left (d x + c\right )^{5} - 1890 \, \cos \left (d x + c\right )^{4} - 840 \, \cos \left (d x + c\right )^{3} + 1260 \, \cos \left (d x + c\right )^{2}}{2520 \, a d} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(sin(d*x+c)^9/(a+a*sec(d*x+c)),x, algorithm="fricas")

[Out]

-1/2520*(280*cos(d*x + c)^9 - 315*cos(d*x + c)^8 - 1080*cos(d*x + c)^7 + 1260*cos(d*x + c)^6 + 1512*cos(d*x +
c)^5 - 1890*cos(d*x + c)^4 - 840*cos(d*x + c)^3 + 1260*cos(d*x + c)^2)/(a*d)

________________________________________________________________________________________

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(sin(d*x+c)**9/(a+a*sec(d*x+c)),x)

[Out]

Timed out

________________________________________________________________________________________

Giac [A]  time = 1.30621, size = 190, normalized size = 2.09 \begin{align*} \frac{32 \,{\left (\frac{9 \,{\left (\cos \left (d x + c\right ) - 1\right )}}{\cos \left (d x + c\right ) + 1} - \frac{36 \,{\left (\cos \left (d x + c\right ) - 1\right )}^{2}}{{\left (\cos \left (d x + c\right ) + 1\right )}^{2}} + \frac{84 \,{\left (\cos \left (d x + c\right ) - 1\right )}^{3}}{{\left (\cos \left (d x + c\right ) + 1\right )}^{3}} - \frac{126 \,{\left (\cos \left (d x + c\right ) - 1\right )}^{4}}{{\left (\cos \left (d x + c\right ) + 1\right )}^{4}} + \frac{630 \,{\left (\cos \left (d x + c\right ) - 1\right )}^{5}}{{\left (\cos \left (d x + c\right ) + 1\right )}^{5}} - 1\right )}}{315 \, a d{\left (\frac{\cos \left (d x + c\right ) - 1}{\cos \left (d x + c\right ) + 1} - 1\right )}^{9}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(sin(d*x+c)^9/(a+a*sec(d*x+c)),x, algorithm="giac")

[Out]

32/315*(9*(cos(d*x + c) - 1)/(cos(d*x + c) + 1) - 36*(cos(d*x + c) - 1)^2/(cos(d*x + c) + 1)^2 + 84*(cos(d*x +
c) - 1)^3/(cos(d*x + c) + 1)^3 - 126*(cos(d*x + c) - 1)^4/(cos(d*x + c) + 1)^4 + 630*(cos(d*x + c) - 1)^5/(co
s(d*x + c) + 1)^5 - 1)/(a*d*((cos(d*x + c) - 1)/(cos(d*x + c) + 1) - 1)^9)