Integrand size = 33, antiderivative size = 103 \[ \int \cos ^2(c+d x) (a+b \sec (c+d x))^2 \left (A+C \sec ^2(c+d x)\right ) \, dx=\frac {1}{2} \left (2 A b^2+a^2 (A+2 C)\right ) x+\frac {2 a b C \text {arctanh}(\sin (c+d x))}{d}+\frac {a A b \sin (c+d x)}{d}+\frac {A \cos (c+d x) (a+b \sec (c+d x))^2 \sin (c+d x)}{2 d}-\frac {b^2 (A-2 C) \tan (c+d x)}{2 d} \] Output:
1/2*(2*A*b^2+a^2*(A+2*C))*x+2*a*b*C*arctanh(sin(d*x+c))/d+a*A*b*sin(d*x+c) /d+1/2*A*cos(d*x+c)*(a+b*sec(d*x+c))^2*sin(d*x+c)/d-1/2*b^2*(A-2*C)*tan(d* x+c)/d
Time = 1.97 (sec) , antiderivative size = 130, normalized size of antiderivative = 1.26 \[ \int \cos ^2(c+d x) (a+b \sec (c+d x))^2 \left (A+C \sec ^2(c+d x)\right ) \, dx=\frac {2 \left (2 A b^2+a^2 (A+2 C)\right ) (c+d x)-8 a b C \log \left (\cos \left (\frac {1}{2} (c+d x)\right )-\sin \left (\frac {1}{2} (c+d x)\right )\right )+8 a b C \log \left (\cos \left (\frac {1}{2} (c+d x)\right )+\sin \left (\frac {1}{2} (c+d x)\right )\right )+8 a A b \sin (c+d x)+\left (a^2 A+4 b^2 C+a^2 A \cos (2 (c+d x))\right ) \tan (c+d x)}{4 d} \] Input:
Integrate[Cos[c + d*x]^2*(a + b*Sec[c + d*x])^2*(A + C*Sec[c + d*x]^2),x]
Output:
(2*(2*A*b^2 + a^2*(A + 2*C))*(c + d*x) - 8*a*b*C*Log[Cos[(c + d*x)/2] - Si n[(c + d*x)/2]] + 8*a*b*C*Log[Cos[(c + d*x)/2] + Sin[(c + d*x)/2]] + 8*a*A *b*Sin[c + d*x] + (a^2*A + 4*b^2*C + a^2*A*Cos[2*(c + d*x)])*Tan[c + d*x]) /(4*d)
Time = 0.84 (sec) , antiderivative size = 104, normalized size of antiderivative = 1.01, number of steps used = 11, number of rules used = 11, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.333, Rules used = {3042, 4583, 3042, 4564, 3042, 4535, 24, 3042, 4533, 3042, 4257}
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.
| \(\displaystyle \int \cos ^2(c+d x) (a+b \sec (c+d x))^2 \left (A+C \sec ^2(c+d x)\right ) \, dx\) |
| \(\Big \downarrow \) 3042 |
| \(\displaystyle \int \frac {\left (a+b \csc \left (c+d x+\frac {\pi }{2}\right )\right )^2 \left (A+C \csc \left (c+d x+\frac {\pi }{2}\right )^2\right )}{\csc \left (c+d x+\frac {\pi }{2}\right )^2}dx\) |
| \(\Big \downarrow \) 4583 |
| \(\displaystyle \frac {1}{2} \int \cos (c+d x) (a+b \sec (c+d x)) \left (-b (A-2 C) \sec ^2(c+d x)+a (A+2 C) \sec (c+d x)+2 A b\right )dx+\frac {A \sin (c+d x) \cos (c+d x) (a+b \sec (c+d x))^2}{2 d}\) |
| \(\Big \downarrow \) 3042 |
| \(\displaystyle \frac {1}{2} \int \frac {\left (a+b \csc \left (c+d x+\frac {\pi }{2}\right )\right ) \left (-b (A-2 C) \csc \left (c+d x+\frac {\pi }{2}\right )^2+a (A+2 C) \csc \left (c+d x+\frac {\pi }{2}\right )+2 A b\right )}{\csc \left (c+d x+\frac {\pi }{2}\right )}dx+\frac {A \sin (c+d x) \cos (c+d x) (a+b \sec (c+d x))^2}{2 d}\) |
| \(\Big \downarrow \) 4564 |
| \(\displaystyle \frac {1}{2} \left (\int \cos (c+d x) \left (4 a b C \sec ^2(c+d x)+\left ((A+2 C) a^2+2 A b^2\right ) \sec (c+d x)+2 a A b\right )dx-\frac {b^2 (A-2 C) \tan (c+d x)}{d}\right )+\frac {A \sin (c+d x) \cos (c+d x) (a+b \sec (c+d x))^2}{2 d}\) |
| \(\Big \downarrow \) 3042 |
| \(\displaystyle \frac {1}{2} \left (\int \frac {4 a b C \csc \left (c+d x+\frac {\pi }{2}\right )^2+\left ((A+2 C) a^2+2 A b^2\right ) \csc \left (c+d x+\frac {\pi }{2}\right )+2 a A b}{\csc \left (c+d x+\frac {\pi }{2}\right )}dx-\frac {b^2 (A-2 C) \tan (c+d x)}{d}\right )+\frac {A \sin (c+d x) \cos (c+d x) (a+b \sec (c+d x))^2}{2 d}\) |
| \(\Big \downarrow \) 4535 |
| \(\displaystyle \frac {1}{2} \left (\left (a^2 (A+2 C)+2 A b^2\right ) \int 1dx+\int \cos (c+d x) \left (4 a b C \sec ^2(c+d x)+2 a A b\right )dx-\frac {b^2 (A-2 C) \tan (c+d x)}{d}\right )+\frac {A \sin (c+d x) \cos (c+d x) (a+b \sec (c+d x))^2}{2 d}\) |
| \(\Big \downarrow \) 24 |
| \(\displaystyle \frac {1}{2} \left (\int \cos (c+d x) \left (4 a b C \sec ^2(c+d x)+2 a A b\right )dx+x \left (a^2 (A+2 C)+2 A b^2\right )-\frac {b^2 (A-2 C) \tan (c+d x)}{d}\right )+\frac {A \sin (c+d x) \cos (c+d x) (a+b \sec (c+d x))^2}{2 d}\) |
| \(\Big \downarrow \) 3042 |
| \(\displaystyle \frac {1}{2} \left (\int \frac {4 a b C \csc \left (c+d x+\frac {\pi }{2}\right )^2+2 a A b}{\csc \left (c+d x+\frac {\pi }{2}\right )}dx+x \left (a^2 (A+2 C)+2 A b^2\right )-\frac {b^2 (A-2 C) \tan (c+d x)}{d}\right )+\frac {A \sin (c+d x) \cos (c+d x) (a+b \sec (c+d x))^2}{2 d}\) |
| \(\Big \downarrow \) 4533 |
| \(\displaystyle \frac {1}{2} \left (4 a b C \int \sec (c+d x)dx+x \left (a^2 (A+2 C)+2 A b^2\right )+\frac {2 a A b \sin (c+d x)}{d}-\frac {b^2 (A-2 C) \tan (c+d x)}{d}\right )+\frac {A \sin (c+d x) \cos (c+d x) (a+b \sec (c+d x))^2}{2 d}\) |
| \(\Big \downarrow \) 3042 |
| \(\displaystyle \frac {1}{2} \left (4 a b C \int \csc \left (c+d x+\frac {\pi }{2}\right )dx+x \left (a^2 (A+2 C)+2 A b^2\right )+\frac {2 a A b \sin (c+d x)}{d}-\frac {b^2 (A-2 C) \tan (c+d x)}{d}\right )+\frac {A \sin (c+d x) \cos (c+d x) (a+b \sec (c+d x))^2}{2 d}\) |
| \(\Big \downarrow \) 4257 |
| \(\displaystyle \frac {1}{2} \left (x \left (a^2 (A+2 C)+2 A b^2\right )+\frac {2 a A b \sin (c+d x)}{d}+\frac {4 a b C \text {arctanh}(\sin (c+d x))}{d}-\frac {b^2 (A-2 C) \tan (c+d x)}{d}\right )+\frac {A \sin (c+d x) \cos (c+d x) (a+b \sec (c+d x))^2}{2 d}\) |
Input:
Int[Cos[c + d*x]^2*(a + b*Sec[c + d*x])^2*(A + C*Sec[c + d*x]^2),x]
Output:
(A*Cos[c + d*x]*(a + b*Sec[c + d*x])^2*Sin[c + d*x])/(2*d) + ((2*A*b^2 + a ^2*(A + 2*C))*x + (4*a*b*C*ArcTanh[Sin[c + d*x]])/d + (2*a*A*b*Sin[c + d*x ])/d - (b^2*(A - 2*C)*Tan[c + d*x])/d)/2
Int[csc[(c_.) + (d_.)*(x_)], x_Symbol] :> Simp[-ArcTanh[Cos[c + d*x]]/d, x] /; FreeQ[{c, d}, x]
Int[(csc[(e_.) + (f_.)*(x_)]*(b_.))^(m_.)*(csc[(e_.) + (f_.)*(x_)]^2*(C_.) + (A_)), x_Symbol] :> Simp[A*Cot[e + f*x]*((b*Csc[e + f*x])^m/(f*m)), x] + Simp[(C*m + A*(m + 1))/(b^2*m) Int[(b*Csc[e + f*x])^(m + 2), x], x] /; Fr eeQ[{b, e, f, A, C}, x] && NeQ[C*m + A*(m + 1), 0] && LeQ[m, -1]
Int[(csc[(e_.) + (f_.)*(x_)]*(b_.))^(m_.)*((A_.) + csc[(e_.) + (f_.)*(x_)]* (B_.) + csc[(e_.) + (f_.)*(x_)]^2*(C_.)), x_Symbol] :> Simp[B/b Int[(b*Cs c[e + f*x])^(m + 1), x], x] + Int[(b*Csc[e + f*x])^m*(A + C*Csc[e + f*x]^2) , x] /; FreeQ[{b, e, f, A, B, C, m}, x]
Int[((A_.) + csc[(e_.) + (f_.)*(x_)]*(B_.) + csc[(e_.) + (f_.)*(x_)]^2*(C_. ))*(csc[(e_.) + (f_.)*(x_)]*(d_.))^(n_.)*(csc[(e_.) + (f_.)*(x_)]*(b_.) + ( a_)), x_Symbol] :> Simp[(-b)*C*Csc[e + f*x]*Cot[e + f*x]*((d*Csc[e + f*x])^ n/(f*(n + 2))), x] + Simp[1/(n + 2) Int[(d*Csc[e + f*x])^n*Simp[A*a*(n + 2) + (B*a*(n + 2) + b*(C*(n + 1) + A*(n + 2)))*Csc[e + f*x] + (a*C + B*b)*( n + 2)*Csc[e + f*x]^2, x], x], x] /; FreeQ[{a, b, d, e, f, A, B, C, n}, x] && !LtQ[n, -1]
Int[((A_.) + csc[(e_.) + (f_.)*(x_)]^2*(C_.))*(csc[(e_.) + (f_.)*(x_)]*(d_. ))^(n_)*(csc[(e_.) + (f_.)*(x_)]*(b_.) + (a_))^(m_), x_Symbol] :> Simp[A*Co t[e + f*x]*(a + b*Csc[e + f*x])^m*((d*Csc[e + f*x])^n/(f*n)), x] - Simp[1/( d*n) Int[(a + b*Csc[e + f*x])^(m - 1)*(d*Csc[e + f*x])^(n + 1)*Simp[A*b*m - a*(C*n + A*(n + 1))*Csc[e + f*x] - b*(C*n + A*(m + n + 1))*Csc[e + f*x]^ 2, x], x], x] /; FreeQ[{a, b, d, e, f, A, C}, x] && NeQ[a^2 - b^2, 0] && Gt Q[m, 0] && LeQ[n, -1]
Time = 0.84 (sec) , antiderivative size = 94, normalized size of antiderivative = 0.91
| method | result | size |
| derivativedivides | \(\frac {a^{2} A \left (\frac {\cos \left (d x +c \right ) \sin \left (d x +c \right )}{2}+\frac {d x}{2}+\frac {c}{2}\right )+C \,a^{2} \left (d x +c \right )+2 a A b \sin \left (d x +c \right )+2 C a b \ln \left (\sec \left (d x +c \right )+\tan \left (d x +c \right )\right )+A \,b^{2} \left (d x +c \right )+C \,b^{2} \tan \left (d x +c \right )}{d}\) | \(94\) |
| default | \(\frac {a^{2} A \left (\frac {\cos \left (d x +c \right ) \sin \left (d x +c \right )}{2}+\frac {d x}{2}+\frac {c}{2}\right )+C \,a^{2} \left (d x +c \right )+2 a A b \sin \left (d x +c \right )+2 C a b \ln \left (\sec \left (d x +c \right )+\tan \left (d x +c \right )\right )+A \,b^{2} \left (d x +c \right )+C \,b^{2} \tan \left (d x +c \right )}{d}\) | \(94\) |
| parallelrisch | \(\frac {-16 C \ln \left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )-1\right ) a b \cos \left (d x +c \right )+16 C \ln \left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )+1\right ) a b \cos \left (d x +c \right )+8 a A b \sin \left (2 d x +2 c \right )+a^{2} A \sin \left (3 d x +3 c \right )+4 x \left (2 A \,b^{2}+a^{2} \left (A +2 C \right )\right ) d \cos \left (d x +c \right )+\sin \left (d x +c \right ) \left (a^{2} A +8 C \,b^{2}\right )}{8 d \cos \left (d x +c \right )}\) | \(134\) |
| risch | \(\frac {a^{2} A x}{2}+x A \,b^{2}+a^{2} x C -\frac {i a^{2} A \,{\mathrm e}^{2 i \left (d x +c \right )}}{8 d}-\frac {i a A b \,{\mathrm e}^{i \left (d x +c \right )}}{d}+\frac {i a A b \,{\mathrm e}^{-i \left (d x +c \right )}}{d}+\frac {i a^{2} A \,{\mathrm e}^{-2 i \left (d x +c \right )}}{8 d}+\frac {2 i C \,b^{2}}{d \left ({\mathrm e}^{2 i \left (d x +c \right )}+1\right )}+\frac {2 a b \ln \left ({\mathrm e}^{i \left (d x +c \right )}+i\right ) C}{d}-\frac {2 a b \ln \left ({\mathrm e}^{i \left (d x +c \right )}-i\right ) C}{d}\) | \(160\) |
| norman | \(\frac {\left (-\frac {1}{2} a^{2} A -A \,b^{2}-C \,a^{2}\right ) x +\left (-\frac {1}{2} a^{2} A -A \,b^{2}-C \,a^{2}\right ) x \tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{8}+\left (\frac {1}{2} a^{2} A +A \,b^{2}+C \,a^{2}\right ) x \tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{2}+\left (\frac {1}{2} a^{2} A +A \,b^{2}+C \,a^{2}\right ) x \tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{10}+\left (-a^{2} A -2 A \,b^{2}-2 C \,a^{2}\right ) x \tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{6}+\left (a^{2} A +2 A \,b^{2}+2 C \,a^{2}\right ) x \tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{4}-\frac {2 \left (3 a^{2} A -2 C \,b^{2}\right ) \tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{5}}{d}-\frac {\left (a^{2} A -4 a A b +2 C \,b^{2}\right ) \tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{9}}{d}-\frac {\left (a^{2} A +4 a A b +2 C \,b^{2}\right ) \tan \left (\frac {d x}{2}+\frac {c}{2}\right )}{d}+\frac {4 a A \left (a -2 b \right ) \tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{7}}{d}+\frac {4 a A \left (a +2 b \right ) \tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{3}}{d}}{\left (1+\tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{2}\right )^{2} \left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{2}-1\right )^{3}}-\frac {2 C a b \ln \left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )-1\right )}{d}+\frac {2 C a b \ln \left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )+1\right )}{d}\) | \(389\) |
Input:
int(cos(d*x+c)^2*(a+b*sec(d*x+c))^2*(A+C*sec(d*x+c)^2),x,method=_RETURNVER BOSE)
Output:
1/d*(a^2*A*(1/2*cos(d*x+c)*sin(d*x+c)+1/2*d*x+1/2*c)+C*a^2*(d*x+c)+2*a*A*b *sin(d*x+c)+2*C*a*b*ln(sec(d*x+c)+tan(d*x+c))+A*b^2*(d*x+c)+C*b^2*tan(d*x+ c))
Time = 0.09 (sec) , antiderivative size = 119, normalized size of antiderivative = 1.16 \[ \int \cos ^2(c+d x) (a+b \sec (c+d x))^2 \left (A+C \sec ^2(c+d x)\right ) \, dx=\frac {2 \, C a b \cos \left (d x + c\right ) \log \left (\sin \left (d x + c\right ) + 1\right ) - 2 \, C a b \cos \left (d x + c\right ) \log \left (-\sin \left (d x + c\right ) + 1\right ) + {\left ({\left (A + 2 \, C\right )} a^{2} + 2 \, A b^{2}\right )} d x \cos \left (d x + c\right ) + {\left (A a^{2} \cos \left (d x + c\right )^{2} + 4 \, A a b \cos \left (d x + c\right ) + 2 \, C b^{2}\right )} \sin \left (d x + c\right )}{2 \, d \cos \left (d x + c\right )} \] Input:
integrate(cos(d*x+c)^2*(a+b*sec(d*x+c))^2*(A+C*sec(d*x+c)^2),x, algorithm= "fricas")
Output:
1/2*(2*C*a*b*cos(d*x + c)*log(sin(d*x + c) + 1) - 2*C*a*b*cos(d*x + c)*log (-sin(d*x + c) + 1) + ((A + 2*C)*a^2 + 2*A*b^2)*d*x*cos(d*x + c) + (A*a^2* cos(d*x + c)^2 + 4*A*a*b*cos(d*x + c) + 2*C*b^2)*sin(d*x + c))/(d*cos(d*x + c))
\[ \int \cos ^2(c+d x) (a+b \sec (c+d x))^2 \left (A+C \sec ^2(c+d x)\right ) \, dx=\int \left (A + C \sec ^{2}{\left (c + d x \right )}\right ) \left (a + b \sec {\left (c + d x \right )}\right )^{2} \cos ^{2}{\left (c + d x \right )}\, dx \] Input:
integrate(cos(d*x+c)**2*(a+b*sec(d*x+c))**2*(A+C*sec(d*x+c)**2),x)
Output:
Integral((A + C*sec(c + d*x)**2)*(a + b*sec(c + d*x))**2*cos(c + d*x)**2, x)
Time = 0.04 (sec) , antiderivative size = 99, normalized size of antiderivative = 0.96 \[ \int \cos ^2(c+d x) (a+b \sec (c+d x))^2 \left (A+C \sec ^2(c+d x)\right ) \, dx=\frac {{\left (2 \, d x + 2 \, c + \sin \left (2 \, d x + 2 \, c\right )\right )} A a^{2} + 4 \, {\left (d x + c\right )} C a^{2} + 4 \, {\left (d x + c\right )} A b^{2} + 4 \, C a b {\left (\log \left (\sin \left (d x + c\right ) + 1\right ) - \log \left (\sin \left (d x + c\right ) - 1\right )\right )} + 8 \, A a b \sin \left (d x + c\right ) + 4 \, C b^{2} \tan \left (d x + c\right )}{4 \, d} \] Input:
integrate(cos(d*x+c)^2*(a+b*sec(d*x+c))^2*(A+C*sec(d*x+c)^2),x, algorithm= "maxima")
Output:
1/4*((2*d*x + 2*c + sin(2*d*x + 2*c))*A*a^2 + 4*(d*x + c)*C*a^2 + 4*(d*x + c)*A*b^2 + 4*C*a*b*(log(sin(d*x + c) + 1) - log(sin(d*x + c) - 1)) + 8*A* a*b*sin(d*x + c) + 4*C*b^2*tan(d*x + c))/d
Time = 0.25 (sec) , antiderivative size = 175, normalized size of antiderivative = 1.70 \[ \int \cos ^2(c+d x) (a+b \sec (c+d x))^2 \left (A+C \sec ^2(c+d x)\right ) \, dx=\frac {4 \, C a b \log \left ({\left | \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right ) + 1 \right |}\right ) - 4 \, C a b \log \left ({\left | \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right ) - 1 \right |}\right ) - \frac {4 \, C b^{2} \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )}{\tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{2} - 1} + {\left (A a^{2} + 2 \, C a^{2} + 2 \, A b^{2}\right )} {\left (d x + c\right )} - \frac {2 \, {\left (A a^{2} \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{3} - 4 \, A a b \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{3} - A a^{2} \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right ) - 4 \, A a b \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )\right )}}{{\left (\tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{2} + 1\right )}^{2}}}{2 \, d} \] Input:
integrate(cos(d*x+c)^2*(a+b*sec(d*x+c))^2*(A+C*sec(d*x+c)^2),x, algorithm= "giac")
Output:
1/2*(4*C*a*b*log(abs(tan(1/2*d*x + 1/2*c) + 1)) - 4*C*a*b*log(abs(tan(1/2* d*x + 1/2*c) - 1)) - 4*C*b^2*tan(1/2*d*x + 1/2*c)/(tan(1/2*d*x + 1/2*c)^2 - 1) + (A*a^2 + 2*C*a^2 + 2*A*b^2)*(d*x + c) - 2*(A*a^2*tan(1/2*d*x + 1/2* c)^3 - 4*A*a*b*tan(1/2*d*x + 1/2*c)^3 - A*a^2*tan(1/2*d*x + 1/2*c) - 4*A*a *b*tan(1/2*d*x + 1/2*c))/(tan(1/2*d*x + 1/2*c)^2 + 1)^2)/d
Time = 12.01 (sec) , antiderivative size = 193, normalized size of antiderivative = 1.87 \[ \int \cos ^2(c+d x) (a+b \sec (c+d x))^2 \left (A+C \sec ^2(c+d x)\right ) \, dx=\frac {C\,b^2\,\sin \left (c+d\,x\right )}{d\,\cos \left (c+d\,x\right )}+\frac {2\,A\,a\,b\,\sin \left (c+d\,x\right )}{d}+\frac {A\,a^2\,\cos \left (c+d\,x\right )\,\sin \left (c+d\,x\right )}{2\,d}-\frac {A\,a^2\,\mathrm {atanh}\left (\frac {\sin \left (\frac {c}{2}+\frac {d\,x}{2}\right )\,1{}\mathrm {i}}{\cos \left (\frac {c}{2}+\frac {d\,x}{2}\right )}\right )\,1{}\mathrm {i}}{d}-\frac {A\,b^2\,\mathrm {atanh}\left (\frac {\sin \left (\frac {c}{2}+\frac {d\,x}{2}\right )\,1{}\mathrm {i}}{\cos \left (\frac {c}{2}+\frac {d\,x}{2}\right )}\right )\,2{}\mathrm {i}}{d}-\frac {C\,a^2\,\mathrm {atanh}\left (\frac {\sin \left (\frac {c}{2}+\frac {d\,x}{2}\right )\,1{}\mathrm {i}}{\cos \left (\frac {c}{2}+\frac {d\,x}{2}\right )}\right )\,2{}\mathrm {i}}{d}-\frac {C\,a\,b\,\mathrm {atan}\left (\frac {\sin \left (\frac {c}{2}+\frac {d\,x}{2}\right )\,1{}\mathrm {i}}{\cos \left (\frac {c}{2}+\frac {d\,x}{2}\right )}\right )\,4{}\mathrm {i}}{d} \] Input:
int(cos(c + d*x)^2*(A + C/cos(c + d*x)^2)*(a + b/cos(c + d*x))^2,x)
Output:
(C*b^2*sin(c + d*x))/(d*cos(c + d*x)) - (A*b^2*atanh((sin(c/2 + (d*x)/2)*1 i)/cos(c/2 + (d*x)/2))*2i)/d - (C*a^2*atanh((sin(c/2 + (d*x)/2)*1i)/cos(c/ 2 + (d*x)/2))*2i)/d - (A*a^2*atanh((sin(c/2 + (d*x)/2)*1i)/cos(c/2 + (d*x) /2))*1i)/d + (2*A*a*b*sin(c + d*x))/d - (C*a*b*atan((sin(c/2 + (d*x)/2)*1i )/cos(c/2 + (d*x)/2))*4i)/d + (A*a^2*cos(c + d*x)*sin(c + d*x))/(2*d)
Time = 0.16 (sec) , antiderivative size = 191, normalized size of antiderivative = 1.85 \[ \int \cos ^2(c+d x) (a+b \sec (c+d x))^2 \left (A+C \sec ^2(c+d x)\right ) \, dx=\frac {-4 \cos \left (d x +c \right ) \mathrm {log}\left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )-1\right ) a b c +4 \cos \left (d x +c \right ) \mathrm {log}\left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )+1\right ) a b c +4 \cos \left (d x +c \right ) \sin \left (d x +c \right ) a^{2} b +\cos \left (d x +c \right ) a^{3} c +\cos \left (d x +c \right ) a^{3} d x +2 \cos \left (d x +c \right ) a^{2} c^{2}+2 \cos \left (d x +c \right ) a^{2} c d x +2 \cos \left (d x +c \right ) a \,b^{2} c +2 \cos \left (d x +c \right ) a \,b^{2} d x -\sin \left (d x +c \right )^{3} a^{3}+\sin \left (d x +c \right ) a^{3}+2 \sin \left (d x +c \right ) b^{2} c}{2 \cos \left (d x +c \right ) d} \] Input:
int(cos(d*x+c)^2*(a+b*sec(d*x+c))^2*(A+C*sec(d*x+c)^2),x)
Output:
( - 4*cos(c + d*x)*log(tan((c + d*x)/2) - 1)*a*b*c + 4*cos(c + d*x)*log(ta n((c + d*x)/2) + 1)*a*b*c + 4*cos(c + d*x)*sin(c + d*x)*a**2*b + cos(c + d *x)*a**3*c + cos(c + d*x)*a**3*d*x + 2*cos(c + d*x)*a**2*c**2 + 2*cos(c + d*x)*a**2*c*d*x + 2*cos(c + d*x)*a*b**2*c + 2*cos(c + d*x)*a*b**2*d*x - si n(c + d*x)**3*a**3 + sin(c + d*x)*a**3 + 2*sin(c + d*x)*b**2*c)/(2*cos(c + d*x)*d)