Integrand size = 43, antiderivative size = 147 \[ \int \frac {(b \cos (c+d x))^{3/2} \left (A+B \cos (c+d x)+C \cos ^2(c+d x)\right )}{\sqrt {\cos (c+d x)}} \, dx=\frac {b B x \sqrt {b \cos (c+d x)}}{2 \sqrt {\cos (c+d x)}}+\frac {b (3 A+2 C) \sqrt {b \cos (c+d x)} \sin (c+d x)}{3 d \sqrt {\cos (c+d x)}}+\frac {b B \sqrt {\cos (c+d x)} \sqrt {b \cos (c+d x)} \sin (c+d x)}{2 d}+\frac {b C \cos ^{\frac {3}{2}}(c+d x) \sqrt {b \cos (c+d x)} \sin (c+d x)}{3 d} \] Output:
1/2*b*B*x*(b*cos(d*x+c))^(1/2)/cos(d*x+c)^(1/2)+1/3*b*(3*A+2*C)*(b*cos(d*x +c))^(1/2)*sin(d*x+c)/d/cos(d*x+c)^(1/2)+1/2*b*B*cos(d*x+c)^(1/2)*(b*cos(d *x+c))^(1/2)*sin(d*x+c)/d+1/3*b*C*cos(d*x+c)^(3/2)*(b*cos(d*x+c))^(1/2)*si n(d*x+c)/d
Time = 0.17 (sec) , antiderivative size = 76, normalized size of antiderivative = 0.52 \[ \int \frac {(b \cos (c+d x))^{3/2} \left (A+B \cos (c+d x)+C \cos ^2(c+d x)\right )}{\sqrt {\cos (c+d x)}} \, dx=\frac {b \sqrt {b \cos (c+d x)} (6 B c+6 B d x+3 (4 A+3 C) \sin (c+d x)+3 B \sin (2 (c+d x))+C \sin (3 (c+d x)))}{12 d \sqrt {\cos (c+d x)}} \] Input:
Integrate[((b*Cos[c + d*x])^(3/2)*(A + B*Cos[c + d*x] + C*Cos[c + d*x]^2)) /Sqrt[Cos[c + d*x]],x]
Output:
(b*Sqrt[b*Cos[c + d*x]]*(6*B*c + 6*B*d*x + 3*(4*A + 3*C)*Sin[c + d*x] + 3* B*Sin[2*(c + d*x)] + C*Sin[3*(c + d*x)]))/(12*d*Sqrt[Cos[c + d*x]])
Time = 0.36 (sec) , antiderivative size = 95, normalized size of antiderivative = 0.65, number of steps used = 5, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.116, Rules used = {2031, 3042, 3502, 3042, 3213}
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.
\(\displaystyle \int \frac {(b \cos (c+d x))^{3/2} \left (A+B \cos (c+d x)+C \cos ^2(c+d x)\right )}{\sqrt {\cos (c+d x)}} \, dx\) |
\(\Big \downarrow \) 2031 |
\(\displaystyle \frac {b \sqrt {b \cos (c+d x)} \int \cos (c+d x) \left (C \cos ^2(c+d x)+B \cos (c+d x)+A\right )dx}{\sqrt {\cos (c+d x)}}\) |
\(\Big \downarrow \) 3042 |
\(\displaystyle \frac {b \sqrt {b \cos (c+d x)} \int \sin \left (c+d x+\frac {\pi }{2}\right ) \left (C \sin \left (c+d x+\frac {\pi }{2}\right )^2+B \sin \left (c+d x+\frac {\pi }{2}\right )+A\right )dx}{\sqrt {\cos (c+d x)}}\) |
\(\Big \downarrow \) 3502 |
\(\displaystyle \frac {b \sqrt {b \cos (c+d x)} \left (\frac {1}{3} \int \cos (c+d x) (3 A+2 C+3 B \cos (c+d x))dx+\frac {C \sin (c+d x) \cos ^2(c+d x)}{3 d}\right )}{\sqrt {\cos (c+d x)}}\) |
\(\Big \downarrow \) 3042 |
\(\displaystyle \frac {b \sqrt {b \cos (c+d x)} \left (\frac {1}{3} \int \sin \left (c+d x+\frac {\pi }{2}\right ) \left (3 A+2 C+3 B \sin \left (c+d x+\frac {\pi }{2}\right )\right )dx+\frac {C \sin (c+d x) \cos ^2(c+d x)}{3 d}\right )}{\sqrt {\cos (c+d x)}}\) |
\(\Big \downarrow \) 3213 |
\(\displaystyle \frac {b \sqrt {b \cos (c+d x)} \left (\frac {1}{3} \left (\frac {(3 A+2 C) \sin (c+d x)}{d}+\frac {3 B \sin (c+d x) \cos (c+d x)}{2 d}+\frac {3 B x}{2}\right )+\frac {C \sin (c+d x) \cos ^2(c+d x)}{3 d}\right )}{\sqrt {\cos (c+d x)}}\) |
Input:
Int[((b*Cos[c + d*x])^(3/2)*(A + B*Cos[c + d*x] + C*Cos[c + d*x]^2))/Sqrt[ Cos[c + d*x]],x]
Output:
(b*Sqrt[b*Cos[c + d*x]]*((C*Cos[c + d*x]^2*Sin[c + d*x])/(3*d) + ((3*B*x)/ 2 + ((3*A + 2*C)*Sin[c + d*x])/d + (3*B*Cos[c + d*x]*Sin[c + d*x])/(2*d))/ 3))/Sqrt[Cos[c + d*x]]
Int[(Fx_.)*((a_.)*(v_))^(m_)*((b_.)*(v_))^(n_), x_Symbol] :> Simp[a^(m + 1/ 2)*b^(n - 1/2)*(Sqrt[b*v]/Sqrt[a*v]) Int[v^(m + n)*Fx, x], x] /; FreeQ[{a , b, m}, x] && !IntegerQ[m] && IGtQ[n + 1/2, 0] && IntegerQ[m + n]
Int[((a_) + (b_.)*sin[(e_.) + (f_.)*(x_)])*((c_.) + (d_.)*sin[(e_.) + (f_.) *(x_)]), x_Symbol] :> Simp[(2*a*c + b*d)*(x/2), x] + (-Simp[(b*c + a*d)*(Co s[e + f*x]/f), x] - Simp[b*d*Cos[e + f*x]*(Sin[e + f*x]/(2*f)), x]) /; Free Q[{a, b, c, d, e, f}, x] && NeQ[b*c - a*d, 0]
Int[((a_.) + (b_.)*sin[(e_.) + (f_.)*(x_)])^(m_.)*((A_.) + (B_.)*sin[(e_.) + (f_.)*(x_)] + (C_.)*sin[(e_.) + (f_.)*(x_)]^2), x_Symbol] :> Simp[(-C)*Co s[e + f*x]*((a + b*Sin[e + f*x])^(m + 1)/(b*f*(m + 2))), x] + Simp[1/(b*(m + 2)) Int[(a + b*Sin[e + f*x])^m*Simp[A*b*(m + 2) + b*C*(m + 1) + (b*B*(m + 2) - a*C)*Sin[e + f*x], x], x], x] /; FreeQ[{a, b, e, f, A, B, C, m}, x] && !LtQ[m, -1]
Time = 0.35 (sec) , antiderivative size = 78, normalized size of antiderivative = 0.53
method | result | size |
default | \(\frac {b \left (3 B \left (d x +c \right )+6 A \sin \left (d x +c \right )+3 B \sin \left (d x +c \right ) \cos \left (d x +c \right )+\left (2 \cos \left (d x +c \right )^{2}+4\right ) \sin \left (d x +c \right ) C \right ) \sqrt {b \cos \left (d x +c \right )}}{6 d \sqrt {\cos \left (d x +c \right )}}\) | \(78\) |
parts | \(\frac {A \sin \left (d x +c \right ) b \sqrt {b \cos \left (d x +c \right )}}{d \sqrt {\cos \left (d x +c \right )}}+\frac {B \left (\cos \left (d x +c \right ) \sin \left (d x +c \right )+d x +c \right ) b \sqrt {b \cos \left (d x +c \right )}}{2 d \sqrt {\cos \left (d x +c \right )}}+\frac {C \sin \left (d x +c \right ) \left (2+\cos \left (d x +c \right )^{2}\right ) b \sqrt {b \cos \left (d x +c \right )}}{3 d \sqrt {\cos \left (d x +c \right )}}\) | \(116\) |
risch | \(\frac {b B x \sqrt {b \cos \left (d x +c \right )}}{2 \sqrt {\cos \left (d x +c \right )}}+\frac {b \sqrt {b \cos \left (d x +c \right )}\, \left (4 A +3 C \right ) \sin \left (d x +c \right )}{4 \sqrt {\cos \left (d x +c \right )}\, d}+\frac {b \sqrt {b \cos \left (d x +c \right )}\, C \sin \left (3 d x +3 c \right )}{12 \sqrt {\cos \left (d x +c \right )}\, d}+\frac {b \sqrt {b \cos \left (d x +c \right )}\, B \sin \left (2 d x +2 c \right )}{4 \sqrt {\cos \left (d x +c \right )}\, d}\) | \(130\) |
Input:
int((b*cos(d*x+c))^(3/2)*(A+B*cos(d*x+c)+C*cos(d*x+c)^2)/cos(d*x+c)^(1/2), x,method=_RETURNVERBOSE)
Output:
1/6*b/d*(3*B*(d*x+c)+6*A*sin(d*x+c)+3*B*sin(d*x+c)*cos(d*x+c)+(2*cos(d*x+c )^2+4)*sin(d*x+c)*C)*(b*cos(d*x+c))^(1/2)/cos(d*x+c)^(1/2)
Time = 0.11 (sec) , antiderivative size = 249, normalized size of antiderivative = 1.69 \[ \int \frac {(b \cos (c+d x))^{3/2} \left (A+B \cos (c+d x)+C \cos ^2(c+d x)\right )}{\sqrt {\cos (c+d x)}} \, dx=\left [\frac {3 \, B \sqrt {-b} b \cos \left (d x + c\right ) \log \left (2 \, b \cos \left (d x + c\right )^{2} - 2 \, \sqrt {b \cos \left (d x + c\right )} \sqrt {-b} \sqrt {\cos \left (d x + c\right )} \sin \left (d x + c\right ) - b\right ) + 2 \, {\left (2 \, C b \cos \left (d x + c\right )^{2} + 3 \, B b \cos \left (d x + c\right ) + 2 \, {\left (3 \, A + 2 \, C\right )} b\right )} \sqrt {b \cos \left (d x + c\right )} \sqrt {\cos \left (d x + c\right )} \sin \left (d x + c\right )}{12 \, d \cos \left (d x + c\right )}, \frac {3 \, B b^{\frac {3}{2}} \arctan \left (\frac {\sqrt {b \cos \left (d x + c\right )} \sin \left (d x + c\right )}{\sqrt {b} \cos \left (d x + c\right )^{\frac {3}{2}}}\right ) \cos \left (d x + c\right ) + {\left (2 \, C b \cos \left (d x + c\right )^{2} + 3 \, B b \cos \left (d x + c\right ) + 2 \, {\left (3 \, A + 2 \, C\right )} b\right )} \sqrt {b \cos \left (d x + c\right )} \sqrt {\cos \left (d x + c\right )} \sin \left (d x + c\right )}{6 \, d \cos \left (d x + c\right )}\right ] \] Input:
integrate((b*cos(d*x+c))^(3/2)*(A+B*cos(d*x+c)+C*cos(d*x+c)^2)/cos(d*x+c)^ (1/2),x, algorithm="fricas")
Output:
[1/12*(3*B*sqrt(-b)*b*cos(d*x + c)*log(2*b*cos(d*x + c)^2 - 2*sqrt(b*cos(d *x + c))*sqrt(-b)*sqrt(cos(d*x + c))*sin(d*x + c) - b) + 2*(2*C*b*cos(d*x + c)^2 + 3*B*b*cos(d*x + c) + 2*(3*A + 2*C)*b)*sqrt(b*cos(d*x + c))*sqrt(c os(d*x + c))*sin(d*x + c))/(d*cos(d*x + c)), 1/6*(3*B*b^(3/2)*arctan(sqrt( b*cos(d*x + c))*sin(d*x + c)/(sqrt(b)*cos(d*x + c)^(3/2)))*cos(d*x + c) + (2*C*b*cos(d*x + c)^2 + 3*B*b*cos(d*x + c) + 2*(3*A + 2*C)*b)*sqrt(b*cos(d *x + c))*sqrt(cos(d*x + c))*sin(d*x + c))/(d*cos(d*x + c))]
Timed out. \[ \int \frac {(b \cos (c+d x))^{3/2} \left (A+B \cos (c+d x)+C \cos ^2(c+d x)\right )}{\sqrt {\cos (c+d x)}} \, dx=\text {Timed out} \] Input:
integrate((b*cos(d*x+c))**(3/2)*(A+B*cos(d*x+c)+C*cos(d*x+c)**2)/cos(d*x+c )**(1/2),x)
Output:
Timed out
Time = 0.30 (sec) , antiderivative size = 86, normalized size of antiderivative = 0.59 \[ \int \frac {(b \cos (c+d x))^{3/2} \left (A+B \cos (c+d x)+C \cos ^2(c+d x)\right )}{\sqrt {\cos (c+d x)}} \, dx=\frac {12 \, A b^{\frac {3}{2}} \sin \left (d x + c\right ) + 3 \, {\left (2 \, {\left (d x + c\right )} b + b \sin \left (2 \, d x + 2 \, c\right )\right )} B \sqrt {b} + {\left (b \sin \left (3 \, d x + 3 \, c\right ) + 9 \, b \sin \left (\frac {1}{3} \, \arctan \left (\sin \left (3 \, d x + 3 \, c\right ), \cos \left (3 \, d x + 3 \, c\right )\right )\right )\right )} C \sqrt {b}}{12 \, d} \] Input:
integrate((b*cos(d*x+c))^(3/2)*(A+B*cos(d*x+c)+C*cos(d*x+c)^2)/cos(d*x+c)^ (1/2),x, algorithm="maxima")
Output:
1/12*(12*A*b^(3/2)*sin(d*x + c) + 3*(2*(d*x + c)*b + b*sin(2*d*x + 2*c))*B *sqrt(b) + (b*sin(3*d*x + 3*c) + 9*b*sin(1/3*arctan2(sin(3*d*x + 3*c), cos (3*d*x + 3*c))))*C*sqrt(b))/d
Time = 0.33 (sec) , antiderivative size = 57, normalized size of antiderivative = 0.39 \[ \int \frac {(b \cos (c+d x))^{3/2} \left (A+B \cos (c+d x)+C \cos ^2(c+d x)\right )}{\sqrt {\cos (c+d x)}} \, dx=\frac {1}{12} \, {\left (6 \, B x + \frac {C \sin \left (3 \, d x + 3 \, c\right )}{d} + \frac {3 \, B \sin \left (2 \, d x + 2 \, c\right )}{d} + \frac {3 \, {\left (4 \, A + 3 \, C\right )} \sin \left (d x + c\right )}{d}\right )} b^{\frac {3}{2}} \] Input:
integrate((b*cos(d*x+c))^(3/2)*(A+B*cos(d*x+c)+C*cos(d*x+c)^2)/cos(d*x+c)^ (1/2),x, algorithm="giac")
Output:
1/12*(6*B*x + C*sin(3*d*x + 3*c)/d + 3*B*sin(2*d*x + 2*c)/d + 3*(4*A + 3*C )*sin(d*x + c)/d)*b^(3/2)
Time = 0.91 (sec) , antiderivative size = 71, normalized size of antiderivative = 0.48 \[ \int \frac {(b \cos (c+d x))^{3/2} \left (A+B \cos (c+d x)+C \cos ^2(c+d x)\right )}{\sqrt {\cos (c+d x)}} \, dx=\frac {b\,\sqrt {b\,\cos \left (c+d\,x\right )}\,\left (12\,A\,\sin \left (c+d\,x\right )+9\,C\,\sin \left (c+d\,x\right )+3\,B\,\sin \left (2\,c+2\,d\,x\right )+C\,\sin \left (3\,c+3\,d\,x\right )+6\,B\,d\,x\right )}{12\,d\,\sqrt {\cos \left (c+d\,x\right )}} \] Input:
int(((b*cos(c + d*x))^(3/2)*(A + B*cos(c + d*x) + C*cos(c + d*x)^2))/cos(c + d*x)^(1/2),x)
Output:
(b*(b*cos(c + d*x))^(1/2)*(12*A*sin(c + d*x) + 9*C*sin(c + d*x) + 3*B*sin( 2*c + 2*d*x) + C*sin(3*c + 3*d*x) + 6*B*d*x))/(12*d*cos(c + d*x)^(1/2))
Time = 0.17 (sec) , antiderivative size = 58, normalized size of antiderivative = 0.39 \[ \int \frac {(b \cos (c+d x))^{3/2} \left (A+B \cos (c+d x)+C \cos ^2(c+d x)\right )}{\sqrt {\cos (c+d x)}} \, dx=\frac {\sqrt {b}\, b \left (3 \cos \left (d x +c \right ) \sin \left (d x +c \right ) b -2 \sin \left (d x +c \right )^{3} c +6 \sin \left (d x +c \right ) a +6 \sin \left (d x +c \right ) c +3 b d x \right )}{6 d} \] Input:
int((b*cos(d*x+c))^(3/2)*(A+B*cos(d*x+c)+C*cos(d*x+c)^2)/cos(d*x+c)^(1/2), x)
Output:
(sqrt(b)*b*(3*cos(c + d*x)*sin(c + d*x)*b - 2*sin(c + d*x)**3*c + 6*sin(c + d*x)*a + 6*sin(c + d*x)*c + 3*b*d*x))/(6*d)