Integrand size = 28, antiderivative size = 92 \[ \int \cos ^3(c+d x) \left (B \cos (c+d x)+C \cos ^2(c+d x)\right ) \, dx=\frac {3 B x}{8}+\frac {C \sin (c+d x)}{d}+\frac {3 B \cos (c+d x) \sin (c+d x)}{8 d}+\frac {B \cos ^3(c+d x) \sin (c+d x)}{4 d}-\frac {2 C \sin ^3(c+d x)}{3 d}+\frac {C \sin ^5(c+d x)}{5 d} \]
3/8*B*x+C*sin(d*x+c)/d+3/8*B*cos(d*x+c)*sin(d*x+c)/d+1/4*B*cos(d*x+c)^3*si n(d*x+c)/d-2/3*C*sin(d*x+c)^3/d+1/5*C*sin(d*x+c)^5/d
Time = 0.17 (sec) , antiderivative size = 89, normalized size of antiderivative = 0.97 \[ \int \cos ^3(c+d x) \left (B \cos (c+d x)+C \cos ^2(c+d x)\right ) \, dx=\frac {3 B (c+d x)}{8 d}+\frac {C \sin (c+d x)}{d}-\frac {2 C \sin ^3(c+d x)}{3 d}+\frac {C \sin ^5(c+d x)}{5 d}+\frac {B \sin (2 (c+d x))}{4 d}+\frac {B \sin (4 (c+d x))}{32 d} \]
(3*B*(c + d*x))/(8*d) + (C*Sin[c + d*x])/d - (2*C*Sin[c + d*x]^3)/(3*d) + (C*Sin[c + d*x]^5)/(5*d) + (B*Sin[2*(c + d*x)])/(4*d) + (B*Sin[4*(c + d*x) ])/(32*d)
Time = 0.47 (sec) , antiderivative size = 93, normalized size of antiderivative = 1.01, number of steps used = 12, number of rules used = 11, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.393, Rules used = {3042, 3489, 3042, 3227, 3042, 3113, 2009, 3115, 3042, 3115, 24}
Below are the steps used by Rubi to obtain the solution. The rule number used for the transformation is given above next to the arrow. The rules definitions used are listed below.
\(\displaystyle \int \cos ^3(c+d x) \left (B \cos (c+d x)+C \cos ^2(c+d x)\right ) \, dx\) |
\(\Big \downarrow \) 3042 |
\(\displaystyle \int \sin \left (c+d x+\frac {\pi }{2}\right )^3 \left (B \sin \left (c+d x+\frac {\pi }{2}\right )+C \sin \left (c+d x+\frac {\pi }{2}\right )^2\right )dx\) |
\(\Big \downarrow \) 3489 |
\(\displaystyle \int \cos ^4(c+d x) (B+C \cos (c+d x))dx\) |
\(\Big \downarrow \) 3042 |
\(\displaystyle \int \sin \left (c+d x+\frac {\pi }{2}\right )^4 \left (B+C \sin \left (c+d x+\frac {\pi }{2}\right )\right )dx\) |
\(\Big \downarrow \) 3227 |
\(\displaystyle B \int \cos ^4(c+d x)dx+C \int \cos ^5(c+d x)dx\) |
\(\Big \downarrow \) 3042 |
\(\displaystyle B \int \sin \left (c+d x+\frac {\pi }{2}\right )^4dx+C \int \sin \left (c+d x+\frac {\pi }{2}\right )^5dx\) |
\(\Big \downarrow \) 3113 |
\(\displaystyle B \int \sin \left (c+d x+\frac {\pi }{2}\right )^4dx-\frac {C \int \left (\sin ^4(c+d x)-2 \sin ^2(c+d x)+1\right )d(-\sin (c+d x))}{d}\) |
\(\Big \downarrow \) 2009 |
\(\displaystyle B \int \sin \left (c+d x+\frac {\pi }{2}\right )^4dx-\frac {C \left (-\frac {1}{5} \sin ^5(c+d x)+\frac {2}{3} \sin ^3(c+d x)-\sin (c+d x)\right )}{d}\) |
\(\Big \downarrow \) 3115 |
\(\displaystyle B \left (\frac {3}{4} \int \cos ^2(c+d x)dx+\frac {\sin (c+d x) \cos ^3(c+d x)}{4 d}\right )-\frac {C \left (-\frac {1}{5} \sin ^5(c+d x)+\frac {2}{3} \sin ^3(c+d x)-\sin (c+d x)\right )}{d}\) |
\(\Big \downarrow \) 3042 |
\(\displaystyle B \left (\frac {3}{4} \int \sin \left (c+d x+\frac {\pi }{2}\right )^2dx+\frac {\sin (c+d x) \cos ^3(c+d x)}{4 d}\right )-\frac {C \left (-\frac {1}{5} \sin ^5(c+d x)+\frac {2}{3} \sin ^3(c+d x)-\sin (c+d x)\right )}{d}\) |
\(\Big \downarrow \) 3115 |
\(\displaystyle B \left (\frac {3}{4} \left (\frac {\int 1dx}{2}+\frac {\sin (c+d x) \cos (c+d x)}{2 d}\right )+\frac {\sin (c+d x) \cos ^3(c+d x)}{4 d}\right )-\frac {C \left (-\frac {1}{5} \sin ^5(c+d x)+\frac {2}{3} \sin ^3(c+d x)-\sin (c+d x)\right )}{d}\) |
\(\Big \downarrow \) 24 |
\(\displaystyle B \left (\frac {\sin (c+d x) \cos ^3(c+d x)}{4 d}+\frac {3}{4} \left (\frac {\sin (c+d x) \cos (c+d x)}{2 d}+\frac {x}{2}\right )\right )-\frac {C \left (-\frac {1}{5} \sin ^5(c+d x)+\frac {2}{3} \sin ^3(c+d x)-\sin (c+d x)\right )}{d}\) |
-((C*(-Sin[c + d*x] + (2*Sin[c + d*x]^3)/3 - Sin[c + d*x]^5/5))/d) + B*((C os[c + d*x]^3*Sin[c + d*x])/(4*d) + (3*(x/2 + (Cos[c + d*x]*Sin[c + d*x])/ (2*d)))/4)
3.3.16.3.1 Defintions of rubi rules used
Int[sin[(c_.) + (d_.)*(x_)]^(n_), x_Symbol] :> Simp[-d^(-1) Subst[Int[Exp and[(1 - x^2)^((n - 1)/2), x], x], x, Cos[c + d*x]], x] /; FreeQ[{c, d}, x] && IGtQ[(n - 1)/2, 0]
Int[((b_.)*sin[(c_.) + (d_.)*(x_)])^(n_), x_Symbol] :> Simp[(-b)*Cos[c + d* x]*((b*Sin[c + d*x])^(n - 1)/(d*n)), x] + Simp[b^2*((n - 1)/n) Int[(b*Sin [c + d*x])^(n - 2), x], x] /; FreeQ[{b, c, d}, x] && GtQ[n, 1] && IntegerQ[ 2*n]
Int[((b_.)*sin[(e_.) + (f_.)*(x_)])^(m_)*((c_) + (d_.)*sin[(e_.) + (f_.)*(x _)]), x_Symbol] :> Simp[c Int[(b*Sin[e + f*x])^m, x], x] + Simp[d/b Int [(b*Sin[e + f*x])^(m + 1), x], x] /; FreeQ[{b, c, d, e, f, m}, x]
Int[((b_.)*sin[(e_.) + (f_.)*(x_)])^(m_.)*((B_.)*sin[(e_.) + (f_.)*(x_)] + (C_.)*sin[(e_.) + (f_.)*(x_)]^2), x_Symbol] :> Simp[1/b Int[(b*Sin[e + f* x])^(m + 1)*(B + C*Sin[e + f*x]), x], x] /; FreeQ[{b, e, f, B, C, m}, x]
Time = 4.22 (sec) , antiderivative size = 69, normalized size of antiderivative = 0.75
method | result | size |
parallelrisch | \(\frac {180 d x B +15 \sin \left (4 d x +4 c \right ) B +120 \sin \left (2 d x +2 c \right ) B +300 \sin \left (d x +c \right ) C +6 \sin \left (5 d x +5 c \right ) C +50 \sin \left (3 d x +3 c \right ) C}{480 d}\) | \(69\) |
derivativedivides | \(\frac {\frac {C \left (\frac {8}{3}+\cos ^{4}\left (d x +c \right )+\frac {4 \left (\cos ^{2}\left (d x +c \right )\right )}{3}\right ) \sin \left (d x +c \right )}{5}+B \left (\frac {\left (\cos ^{3}\left (d x +c \right )+\frac {3 \cos \left (d x +c \right )}{2}\right ) \sin \left (d x +c \right )}{4}+\frac {3 d x}{8}+\frac {3 c}{8}\right )}{d}\) | \(70\) |
default | \(\frac {\frac {C \left (\frac {8}{3}+\cos ^{4}\left (d x +c \right )+\frac {4 \left (\cos ^{2}\left (d x +c \right )\right )}{3}\right ) \sin \left (d x +c \right )}{5}+B \left (\frac {\left (\cos ^{3}\left (d x +c \right )+\frac {3 \cos \left (d x +c \right )}{2}\right ) \sin \left (d x +c \right )}{4}+\frac {3 d x}{8}+\frac {3 c}{8}\right )}{d}\) | \(70\) |
parts | \(\frac {B \left (\frac {\left (\cos ^{3}\left (d x +c \right )+\frac {3 \cos \left (d x +c \right )}{2}\right ) \sin \left (d x +c \right )}{4}+\frac {3 d x}{8}+\frac {3 c}{8}\right )}{d}+\frac {C \left (\frac {8}{3}+\cos ^{4}\left (d x +c \right )+\frac {4 \left (\cos ^{2}\left (d x +c \right )\right )}{3}\right ) \sin \left (d x +c \right )}{5 d}\) | \(72\) |
risch | \(\frac {3 x B}{8}+\frac {5 C \sin \left (d x +c \right )}{8 d}+\frac {C \sin \left (5 d x +5 c \right )}{80 d}+\frac {B \sin \left (4 d x +4 c \right )}{32 d}+\frac {5 C \sin \left (3 d x +3 c \right )}{48 d}+\frac {B \sin \left (2 d x +2 c \right )}{4 d}\) | \(78\) |
norman | \(\frac {\frac {3 x B}{8}+\frac {116 C \left (\tan ^{5}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )}{15 d}+\frac {15 x B \left (\tan ^{2}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )}{8}+\frac {15 x B \left (\tan ^{4}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )}{4}+\frac {15 x B \left (\tan ^{6}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )}{4}+\frac {15 x B \left (\tan ^{8}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )}{8}+\frac {3 x B \left (\tan ^{10}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )}{8}-\frac {\left (3 B -16 C \right ) \left (\tan ^{7}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )}{6 d}+\frac {\left (3 B +16 C \right ) \left (\tan ^{3}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )}{6 d}-\frac {\left (5 B -8 C \right ) \left (\tan ^{9}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )}{4 d}+\frac {\left (5 B +8 C \right ) \tan \left (\frac {d x}{2}+\frac {c}{2}\right )}{4 d}}{\left (1+\tan ^{2}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )^{5}}\) | \(204\) |
1/480*(180*d*x*B+15*sin(4*d*x+4*c)*B+120*sin(2*d*x+2*c)*B+300*sin(d*x+c)*C +6*sin(5*d*x+5*c)*C+50*sin(3*d*x+3*c)*C)/d
Time = 0.25 (sec) , antiderivative size = 64, normalized size of antiderivative = 0.70 \[ \int \cos ^3(c+d x) \left (B \cos (c+d x)+C \cos ^2(c+d x)\right ) \, dx=\frac {45 \, B d x + {\left (24 \, C \cos \left (d x + c\right )^{4} + 30 \, B \cos \left (d x + c\right )^{3} + 32 \, C \cos \left (d x + c\right )^{2} + 45 \, B \cos \left (d x + c\right ) + 64 \, C\right )} \sin \left (d x + c\right )}{120 \, d} \]
1/120*(45*B*d*x + (24*C*cos(d*x + c)^4 + 30*B*cos(d*x + c)^3 + 32*C*cos(d* x + c)^2 + 45*B*cos(d*x + c) + 64*C)*sin(d*x + c))/d
Leaf count of result is larger than twice the leaf count of optimal. 173 vs. \(2 (85) = 170\).
Time = 0.22 (sec) , antiderivative size = 173, normalized size of antiderivative = 1.88 \[ \int \cos ^3(c+d x) \left (B \cos (c+d x)+C \cos ^2(c+d x)\right ) \, dx=\begin {cases} \frac {3 B x \sin ^{4}{\left (c + d x \right )}}{8} + \frac {3 B x \sin ^{2}{\left (c + d x \right )} \cos ^{2}{\left (c + d x \right )}}{4} + \frac {3 B x \cos ^{4}{\left (c + d x \right )}}{8} + \frac {3 B \sin ^{3}{\left (c + d x \right )} \cos {\left (c + d x \right )}}{8 d} + \frac {5 B \sin {\left (c + d x \right )} \cos ^{3}{\left (c + d x \right )}}{8 d} + \frac {8 C \sin ^{5}{\left (c + d x \right )}}{15 d} + \frac {4 C \sin ^{3}{\left (c + d x \right )} \cos ^{2}{\left (c + d x \right )}}{3 d} + \frac {C \sin {\left (c + d x \right )} \cos ^{4}{\left (c + d x \right )}}{d} & \text {for}\: d \neq 0 \\x \left (B \cos {\left (c \right )} + C \cos ^{2}{\left (c \right )}\right ) \cos ^{3}{\left (c \right )} & \text {otherwise} \end {cases} \]
Piecewise((3*B*x*sin(c + d*x)**4/8 + 3*B*x*sin(c + d*x)**2*cos(c + d*x)**2 /4 + 3*B*x*cos(c + d*x)**4/8 + 3*B*sin(c + d*x)**3*cos(c + d*x)/(8*d) + 5* B*sin(c + d*x)*cos(c + d*x)**3/(8*d) + 8*C*sin(c + d*x)**5/(15*d) + 4*C*si n(c + d*x)**3*cos(c + d*x)**2/(3*d) + C*sin(c + d*x)*cos(c + d*x)**4/d, Ne (d, 0)), (x*(B*cos(c) + C*cos(c)**2)*cos(c)**3, True))
Time = 0.21 (sec) , antiderivative size = 69, normalized size of antiderivative = 0.75 \[ \int \cos ^3(c+d x) \left (B \cos (c+d x)+C \cos ^2(c+d x)\right ) \, dx=\frac {15 \, {\left (12 \, d x + 12 \, c + \sin \left (4 \, d x + 4 \, c\right ) + 8 \, \sin \left (2 \, d x + 2 \, c\right )\right )} B + 32 \, {\left (3 \, \sin \left (d x + c\right )^{5} - 10 \, \sin \left (d x + c\right )^{3} + 15 \, \sin \left (d x + c\right )\right )} C}{480 \, d} \]
1/480*(15*(12*d*x + 12*c + sin(4*d*x + 4*c) + 8*sin(2*d*x + 2*c))*B + 32*( 3*sin(d*x + c)^5 - 10*sin(d*x + c)^3 + 15*sin(d*x + c))*C)/d
Time = 0.33 (sec) , antiderivative size = 77, normalized size of antiderivative = 0.84 \[ \int \cos ^3(c+d x) \left (B \cos (c+d x)+C \cos ^2(c+d x)\right ) \, dx=\frac {3}{8} \, B x + \frac {C \sin \left (5 \, d x + 5 \, c\right )}{80 \, d} + \frac {B \sin \left (4 \, d x + 4 \, c\right )}{32 \, d} + \frac {5 \, C \sin \left (3 \, d x + 3 \, c\right )}{48 \, d} + \frac {B \sin \left (2 \, d x + 2 \, c\right )}{4 \, d} + \frac {5 \, C \sin \left (d x + c\right )}{8 \, d} \]
3/8*B*x + 1/80*C*sin(5*d*x + 5*c)/d + 1/32*B*sin(4*d*x + 4*c)/d + 5/48*C*s in(3*d*x + 3*c)/d + 1/4*B*sin(2*d*x + 2*c)/d + 5/8*C*sin(d*x + c)/d
Time = 5.01 (sec) , antiderivative size = 115, normalized size of antiderivative = 1.25 \[ \int \cos ^3(c+d x) \left (B \cos (c+d x)+C \cos ^2(c+d x)\right ) \, dx=\frac {3\,B\,x}{8}+\frac {\left (2\,C-\frac {5\,B}{4}\right )\,{\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}^9+\left (\frac {8\,C}{3}-\frac {B}{2}\right )\,{\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}^7+\frac {116\,C\,{\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}^5}{15}+\left (\frac {B}{2}+\frac {8\,C}{3}\right )\,{\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}^3+\left (\frac {5\,B}{4}+2\,C\right )\,\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}{d\,{\left ({\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}^2+1\right )}^5} \]