Integrand size = 21, antiderivative size = 119 \[ \int \frac {\sin ^3(c+d x)}{(a+b \sec (c+d x))^2} \, dx=-\frac {\left (a^2-3 b^2\right ) \cos (c+d x)}{a^4 d}-\frac {b \cos ^2(c+d x)}{a^3 d}+\frac {\cos ^3(c+d x)}{3 a^2 d}+\frac {b^2 \left (a^2-b^2\right )}{a^5 d (b+a \cos (c+d x))}+\frac {2 b \left (a^2-2 b^2\right ) \log (b+a \cos (c+d x))}{a^5 d} \]
-(a^2-3*b^2)*cos(d*x+c)/a^4/d-b*cos(d*x+c)^2/a^3/d+1/3*cos(d*x+c)^3/a^2/d+ b^2*(a^2-b^2)/a^5/d/(b+a*cos(d*x+c))+2*b*(a^2-2*b^2)*ln(b+a*cos(d*x+c))/a^ 5/d
Time = 0.32 (sec) , antiderivative size = 167, normalized size of antiderivative = 1.40 \[ \int \frac {\sin ^3(c+d x)}{(a+b \sec (c+d x))^2} \, dx=\frac {-9 a^4+60 a^2 b^2-24 b^4-8 \left (a^4-3 a^2 b^2\right ) \cos (2 (c+d x))-4 a^3 b \cos (3 (c+d x))+a^4 \cos (4 (c+d x))+48 a^2 b^2 \log (b+a \cos (c+d x))-96 b^4 \log (b+a \cos (c+d x))+24 a b \cos (c+d x) \left (-a^2+3 b^2+2 \left (a^2-2 b^2\right ) \log (b+a \cos (c+d x))\right )}{24 a^5 d (b+a \cos (c+d x))} \]
(-9*a^4 + 60*a^2*b^2 - 24*b^4 - 8*(a^4 - 3*a^2*b^2)*Cos[2*(c + d*x)] - 4*a ^3*b*Cos[3*(c + d*x)] + a^4*Cos[4*(c + d*x)] + 48*a^2*b^2*Log[b + a*Cos[c + d*x]] - 96*b^4*Log[b + a*Cos[c + d*x]] + 24*a*b*Cos[c + d*x]*(-a^2 + 3*b ^2 + 2*(a^2 - 2*b^2)*Log[b + a*Cos[c + d*x]]))/(24*a^5*d*(b + a*Cos[c + d* x]))
Time = 0.48 (sec) , antiderivative size = 103, normalized size of antiderivative = 0.87, number of steps used = 9, number of rules used = 8, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.381, Rules used = {3042, 4360, 3042, 25, 3316, 27, 522, 2009}
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.
| \(\displaystyle \int \frac {\sin ^3(c+d x)}{(a+b \sec (c+d x))^2} \, dx\) |
| \(\Big \downarrow \) 3042 |
| \(\displaystyle \int \frac {\cos \left (c+d x-\frac {\pi }{2}\right )^3}{\left (a-b \csc \left (c+d x-\frac {\pi }{2}\right )\right )^2}dx\) |
| \(\Big \downarrow \) 4360 |
| \(\displaystyle \int \frac {\sin ^3(c+d x) \cos ^2(c+d x)}{(-a \cos (c+d x)-b)^2}dx\) |
| \(\Big \downarrow \) 3042 |
| \(\displaystyle \int -\frac {\sin \left (c+d x+\frac {\pi }{2}\right )^2 \cos \left (c+d x+\frac {\pi }{2}\right )^3}{\left (-a \sin \left (c+d x+\frac {\pi }{2}\right )-b\right )^2}dx\) |
| \(\Big \downarrow \) 25 |
| \(\displaystyle -\int \frac {\cos \left (\frac {1}{2} (2 c+\pi )+d x\right )^3 \sin \left (\frac {1}{2} (2 c+\pi )+d x\right )^2}{\left (b+a \sin \left (\frac {1}{2} (2 c+\pi )+d x\right )\right )^2}dx\) |
| \(\Big \downarrow \) 3316 |
| \(\displaystyle -\frac {\int \frac {\cos ^2(c+d x) \left (a^2-a^2 \cos ^2(c+d x)\right )}{(b+a \cos (c+d x))^2}d(a \cos (c+d x))}{a^3 d}\) |
| \(\Big \downarrow \) 27 |
| \(\displaystyle -\frac {\int \frac {a^2 \cos ^2(c+d x) \left (a^2-a^2 \cos ^2(c+d x)\right )}{(b+a \cos (c+d x))^2}d(a \cos (c+d x))}{a^5 d}\) |
| \(\Big \downarrow \) 522 |
| \(\displaystyle -\frac {\int \left (-\cos ^2(c+d x) a^2+\left (1-\frac {3 b^2}{a^2}\right ) a^2+2 b \cos (c+d x) a+\frac {2 b \left (2 b^2-a^2\right )}{b+a \cos (c+d x)}-\frac {b^2 \left (b^2-a^2\right )}{(b+a \cos (c+d x))^2}\right )d(a \cos (c+d x))}{a^5 d}\) |
| \(\Big \downarrow \) 2009 |
| \(\displaystyle -\frac {-\frac {1}{3} a^3 \cos ^3(c+d x)+a \left (a^2-3 b^2\right ) \cos (c+d x)-\frac {b^2 \left (a^2-b^2\right )}{a \cos (c+d x)+b}-2 b \left (a^2-2 b^2\right ) \log (a \cos (c+d x)+b)+a^2 b \cos ^2(c+d x)}{a^5 d}\) |
-((a*(a^2 - 3*b^2)*Cos[c + d*x] + a^2*b*Cos[c + d*x]^2 - (a^3*Cos[c + d*x] ^3)/3 - (b^2*(a^2 - b^2))/(b + a*Cos[c + d*x]) - 2*b*(a^2 - 2*b^2)*Log[b + a*Cos[c + d*x]])/(a^5*d))
3.3.11.3.1 Defintions of rubi rules used
Int[(a_)*(Fx_), x_Symbol] :> Simp[a Int[Fx, x], x] /; FreeQ[a, x] && !Ma tchQ[Fx, (b_)*(Gx_) /; FreeQ[b, x]]
Int[((e_.)*(x_))^(m_.)*((c_) + (d_.)*(x_))^(n_.)*((a_) + (b_.)*(x_)^2)^(p_. ), x_Symbol] :> Int[ExpandIntegrand[(e*x)^m*(c + d*x)^n*(a + b*x^2)^p, x], x] /; FreeQ[{a, b, c, d, e, m, n}, x] && IGtQ[p, 0]
Int[cos[(e_.) + (f_.)*(x_)]^(p_)*((a_) + (b_.)*sin[(e_.) + (f_.)*(x_)])^(m_ .)*((c_.) + (d_.)*sin[(e_.) + (f_.)*(x_)])^(n_.), x_Symbol] :> Simp[1/(b^p* f) Subst[Int[(a + x)^m*(c + (d/b)*x)^n*(b^2 - x^2)^((p - 1)/2), x], x, b* Sin[e + f*x]], x] /; FreeQ[{a, b, c, d, e, f, m, n}, x] && IntegerQ[(p - 1) /2] && NeQ[a^2 - b^2, 0]
Int[(cos[(e_.) + (f_.)*(x_)]*(g_.))^(p_.)*(csc[(e_.) + (f_.)*(x_)]*(b_.) + (a_))^(m_.), x_Symbol] :> Int[(g*Cos[e + f*x])^p*((b + a*Sin[e + f*x])^m/Si n[e + f*x]^m), x] /; FreeQ[{a, b, e, f, g, p}, x] && IntegerQ[m]
Time = 1.39 (sec) , antiderivative size = 112, normalized size of antiderivative = 0.94
| method | result | size |
| derivativedivides | \(\frac {\frac {\frac {\cos \left (d x +c \right )^{3} a^{2}}{3}-a b \cos \left (d x +c \right )^{2}-\cos \left (d x +c \right ) a^{2}+3 \cos \left (d x +c \right ) b^{2}}{a^{4}}+\frac {b^{2} \left (a^{2}-b^{2}\right )}{a^{5} \left (b +a \cos \left (d x +c \right )\right )}+\frac {2 b \left (a^{2}-2 b^{2}\right ) \ln \left (b +a \cos \left (d x +c \right )\right )}{a^{5}}}{d}\) | \(112\) |
| default | \(\frac {\frac {\frac {\cos \left (d x +c \right )^{3} a^{2}}{3}-a b \cos \left (d x +c \right )^{2}-\cos \left (d x +c \right ) a^{2}+3 \cos \left (d x +c \right ) b^{2}}{a^{4}}+\frac {b^{2} \left (a^{2}-b^{2}\right )}{a^{5} \left (b +a \cos \left (d x +c \right )\right )}+\frac {2 b \left (a^{2}-2 b^{2}\right ) \ln \left (b +a \cos \left (d x +c \right )\right )}{a^{5}}}{d}\) | \(112\) |
| parallelrisch | \(\frac {48 b^{2} \left (a^{2}-2 b^{2}\right ) \left (b +a \cos \left (d x +c \right )\right ) \ln \left (-2 a +\sec \left (\frac {d x}{2}+\frac {c}{2}\right )^{2} \left (a -b \right )\right )-48 b^{2} \left (a^{2}-2 b^{2}\right ) \left (b +a \cos \left (d x +c \right )\right ) \ln \left (\sec \left (\frac {d x}{2}+\frac {c}{2}\right )^{2}\right )+\left (-8 a^{4} b +24 a^{2} b^{3}\right ) \cos \left (2 d x +2 c \right )-4 \cos \left (3 d x +3 c \right ) a^{3} b^{2}+b \cos \left (4 d x +4 c \right ) a^{4}+\left (-16 a^{5}-44 a^{3} b^{2}+96 a \,b^{4}\right ) \cos \left (d x +c \right )-25 a^{4} b +40 a^{2} b^{3}}{24 d \,a^{5} b \left (b +a \cos \left (d x +c \right )\right )}\) | \(204\) |
| risch | \(-\frac {2 i b x}{a^{3}}+\frac {4 i b^{3} x}{a^{5}}-\frac {b \,{\mathrm e}^{2 i \left (d x +c \right )}}{4 a^{3} d}-\frac {3 \,{\mathrm e}^{i \left (d x +c \right )}}{8 a^{2} d}+\frac {3 \,{\mathrm e}^{i \left (d x +c \right )} b^{2}}{2 a^{4} d}-\frac {3 \,{\mathrm e}^{-i \left (d x +c \right )}}{8 a^{2} d}+\frac {3 \,{\mathrm e}^{-i \left (d x +c \right )} b^{2}}{2 a^{4} d}-\frac {b \,{\mathrm e}^{-2 i \left (d x +c \right )}}{4 a^{3} d}+\frac {8 i b^{3} c}{a^{5} d}-\frac {4 i b c}{a^{3} d}-\frac {2 b^{2} \left (-a^{2}+b^{2}\right ) {\mathrm e}^{i \left (d x +c \right )}}{a^{5} d \left (a \,{\mathrm e}^{2 i \left (d x +c \right )}+2 b \,{\mathrm e}^{i \left (d x +c \right )}+a \right )}+\frac {2 b \ln \left ({\mathrm e}^{2 i \left (d x +c \right )}+\frac {2 b \,{\mathrm e}^{i \left (d x +c \right )}}{a}+1\right )}{a^{3} d}-\frac {4 b^{3} \ln \left ({\mathrm e}^{2 i \left (d x +c \right )}+\frac {2 b \,{\mathrm e}^{i \left (d x +c \right )}}{a}+1\right )}{a^{5} d}+\frac {\cos \left (3 d x +3 c \right )}{12 d \,a^{2}}\) | \(301\) |
| norman | \(\frac {-\frac {\left (4 a^{4}-8 a^{3} b +12 a^{2} b^{2}+16 a \,b^{3}-24 b^{4}\right ) \tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{8}}{6 d \,a^{4} b}+\frac {\left (4 a^{3}+4 a^{2} b +8 a \,b^{2}-24 b^{3}\right ) \left (a +b \right )}{6 a^{4} b d}-\frac {\left (4 a^{4}-12 a^{3} b +4 a^{2} b^{2}+8 a \,b^{3}-24 b^{4}\right ) \tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{6}}{3 a^{4} b d}+\frac {\left (4 a^{4}+12 a^{3} b +4 a^{2} b^{2}-8 a \,b^{3}-24 b^{4}\right ) \tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{2}}{3 d \,a^{4} b}}{\left (1+\tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{2}\right )^{3} \left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{2} a -\tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{2} b -a -b \right )}-\frac {2 b \left (a^{2}-2 b^{2}\right ) \ln \left (1+\tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{2}\right )}{d \,a^{5}}+\frac {2 b \left (a^{2}-2 b^{2}\right ) \ln \left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{2} a -\tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{2} b -a -b \right )}{d \,a^{5}}\) | \(336\) |
1/d*(1/a^4*(1/3*cos(d*x+c)^3*a^2-a*b*cos(d*x+c)^2-cos(d*x+c)*a^2+3*cos(d*x +c)*b^2)+b^2*(a^2-b^2)/a^5/(b+a*cos(d*x+c))+2/a^5*b*(a^2-2*b^2)*ln(b+a*cos (d*x+c)))
Time = 0.29 (sec) , antiderivative size = 150, normalized size of antiderivative = 1.26 \[ \int \frac {\sin ^3(c+d x)}{(a+b \sec (c+d x))^2} \, dx=\frac {2 \, a^{4} \cos \left (d x + c\right )^{4} - 4 \, a^{3} b \cos \left (d x + c\right )^{3} + 9 \, a^{2} b^{2} - 6 \, b^{4} - 6 \, {\left (a^{4} - 2 \, a^{2} b^{2}\right )} \cos \left (d x + c\right )^{2} - 3 \, {\left (a^{3} b - 6 \, a b^{3}\right )} \cos \left (d x + c\right ) + 12 \, {\left (a^{2} b^{2} - 2 \, b^{4} + {\left (a^{3} b - 2 \, a b^{3}\right )} \cos \left (d x + c\right )\right )} \log \left (a \cos \left (d x + c\right ) + b\right )}{6 \, {\left (a^{6} d \cos \left (d x + c\right ) + a^{5} b d\right )}} \]
1/6*(2*a^4*cos(d*x + c)^4 - 4*a^3*b*cos(d*x + c)^3 + 9*a^2*b^2 - 6*b^4 - 6 *(a^4 - 2*a^2*b^2)*cos(d*x + c)^2 - 3*(a^3*b - 6*a*b^3)*cos(d*x + c) + 12* (a^2*b^2 - 2*b^4 + (a^3*b - 2*a*b^3)*cos(d*x + c))*log(a*cos(d*x + c) + b) )/(a^6*d*cos(d*x + c) + a^5*b*d)
Timed out. \[ \int \frac {\sin ^3(c+d x)}{(a+b \sec (c+d x))^2} \, dx=\text {Timed out} \]
Time = 0.20 (sec) , antiderivative size = 112, normalized size of antiderivative = 0.94 \[ \int \frac {\sin ^3(c+d x)}{(a+b \sec (c+d x))^2} \, dx=\frac {\frac {3 \, {\left (a^{2} b^{2} - b^{4}\right )}}{a^{6} \cos \left (d x + c\right ) + a^{5} b} + \frac {a^{2} \cos \left (d x + c\right )^{3} - 3 \, a b \cos \left (d x + c\right )^{2} - 3 \, {\left (a^{2} - 3 \, b^{2}\right )} \cos \left (d x + c\right )}{a^{4}} + \frac {6 \, {\left (a^{2} b - 2 \, b^{3}\right )} \log \left (a \cos \left (d x + c\right ) + b\right )}{a^{5}}}{3 \, d} \]
1/3*(3*(a^2*b^2 - b^4)/(a^6*cos(d*x + c) + a^5*b) + (a^2*cos(d*x + c)^3 - 3*a*b*cos(d*x + c)^2 - 3*(a^2 - 3*b^2)*cos(d*x + c))/a^4 + 6*(a^2*b - 2*b^ 3)*log(a*cos(d*x + c) + b)/a^5)/d
Time = 0.33 (sec) , antiderivative size = 139, normalized size of antiderivative = 1.17 \[ \int \frac {\sin ^3(c+d x)}{(a+b \sec (c+d x))^2} \, dx=\frac {2 \, {\left (a^{2} b - 2 \, b^{3}\right )} \log \left ({\left | -a \cos \left (d x + c\right ) - b \right |}\right )}{a^{5} d} + \frac {a^{2} b^{2} - b^{4}}{{\left (a \cos \left (d x + c\right ) + b\right )} a^{5} d} + \frac {a^{4} d^{5} \cos \left (d x + c\right )^{3} - 3 \, a^{3} b d^{5} \cos \left (d x + c\right )^{2} - 3 \, a^{4} d^{5} \cos \left (d x + c\right ) + 9 \, a^{2} b^{2} d^{5} \cos \left (d x + c\right )}{3 \, a^{6} d^{6}} \]
2*(a^2*b - 2*b^3)*log(abs(-a*cos(d*x + c) - b))/(a^5*d) + (a^2*b^2 - b^4)/ ((a*cos(d*x + c) + b)*a^5*d) + 1/3*(a^4*d^5*cos(d*x + c)^3 - 3*a^3*b*d^5*c os(d*x + c)^2 - 3*a^4*d^5*cos(d*x + c) + 9*a^2*b^2*d^5*cos(d*x + c))/(a^6* d^6)
Time = 0.09 (sec) , antiderivative size = 113, normalized size of antiderivative = 0.95 \[ \int \frac {\sin ^3(c+d x)}{(a+b \sec (c+d x))^2} \, dx=-\frac {\cos \left (c+d\,x\right )\,\left (\frac {1}{a^2}-\frac {3\,b^2}{a^4}\right )-\frac {{\cos \left (c+d\,x\right )}^3}{3\,a^2}+\frac {b\,{\cos \left (c+d\,x\right )}^2}{a^3}-\frac {\ln \left (b+a\,\cos \left (c+d\,x\right )\right )\,\left (2\,a^2\,b-4\,b^3\right )}{a^5}+\frac {b^4-a^2\,b^2}{a\,\left (\cos \left (c+d\,x\right )\,a^5+b\,a^4\right )}}{d} \]