Integrand size = 23, antiderivative size = 176 \[ \int \frac {\cot ^3(c+d x)}{(a+a \sec (c+d x))^{3/2}} \, dx=-\frac {2 \text {arctanh}\left (\frac {\sqrt {a+a \sec (c+d x)}}{\sqrt {a}}\right )}{a^{3/2} d}+\frac {11 \text {arctanh}\left (\frac {\sqrt {a+a \sec (c+d x)}}{\sqrt {2} \sqrt {a}}\right )}{16 \sqrt {2} a^{3/2} d}-\frac {3 a}{20 d (a+a \sec (c+d x))^{5/2}}+\frac {a}{2 d (1-\sec (c+d x)) (a+a \sec (c+d x))^{5/2}}+\frac {5}{24 d (a+a \sec (c+d x))^{3/2}}+\frac {21}{16 a d \sqrt {a+a \sec (c+d x)}} \]
-2*arctanh((a+a*sec(d*x+c))^(1/2)/a^(1/2))/a^(3/2)/d-3/20*a/d/(a+a*sec(d*x +c))^(5/2)+1/2*a/d/(1-sec(d*x+c))/(a+a*sec(d*x+c))^(5/2)+5/24/d/(a+a*sec(d *x+c))^(3/2)+11/32*arctanh(1/2*(a+a*sec(d*x+c))^(1/2)*2^(1/2)/a^(1/2))/a^( 3/2)/d*2^(1/2)+21/16/a/d/(a+a*sec(d*x+c))^(1/2)
Result contains higher order function than in optimal. Order 5 vs. order 3 in optimal.
Time = 0.13 (sec) , antiderivative size = 90, normalized size of antiderivative = 0.51 \[ \int \frac {\cot ^3(c+d x)}{(a+a \sec (c+d x))^{3/2}} \, dx=\frac {a \left (-10-11 \operatorname {Hypergeometric2F1}\left (-\frac {5}{2},1,-\frac {3}{2},\frac {1}{2} (1+\sec (c+d x))\right ) (-1+\sec (c+d x))+8 \operatorname {Hypergeometric2F1}\left (-\frac {5}{2},1,-\frac {3}{2},1+\sec (c+d x)\right ) (-1+\sec (c+d x))\right )}{20 d (-1+\sec (c+d x)) (a (1+\sec (c+d x)))^{5/2}} \]
(a*(-10 - 11*Hypergeometric2F1[-5/2, 1, -3/2, (1 + Sec[c + d*x])/2]*(-1 + Sec[c + d*x]) + 8*Hypergeometric2F1[-5/2, 1, -3/2, 1 + Sec[c + d*x]]*(-1 + Sec[c + d*x])))/(20*d*(-1 + Sec[c + d*x])*(a*(1 + Sec[c + d*x]))^(5/2))
Time = 0.38 (sec) , antiderivative size = 197, normalized size of antiderivative = 1.12, number of steps used = 17, number of rules used = 16, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.696, Rules used = {3042, 25, 4368, 27, 114, 27, 169, 27, 169, 27, 169, 27, 174, 73, 219, 220}
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.
| \(\displaystyle \int \frac {\cot ^3(c+d x)}{(a \sec (c+d x)+a)^{3/2}} \, dx\) |
| \(\Big \downarrow \) 3042 |
| \(\displaystyle \int -\frac {1}{\cot \left (c+d x+\frac {\pi }{2}\right )^3 \left (a \csc \left (c+d x+\frac {\pi }{2}\right )+a\right )^{3/2}}dx\) |
| \(\Big \downarrow \) 25 |
| \(\displaystyle -\int \frac {1}{\cot \left (\frac {1}{2} (2 c+\pi )+d x\right )^3 \left (\csc \left (\frac {1}{2} (2 c+\pi )+d x\right ) a+a\right )^{3/2}}dx\) |
| \(\Big \downarrow \) 4368 |
| \(\displaystyle \frac {a^4 \int \frac {\cos (c+d x)}{a^2 (1-\sec (c+d x))^2 (\sec (c+d x) a+a)^{7/2}}d\sec (c+d x)}{d}\) |
| \(\Big \downarrow \) 27 |
| \(\displaystyle \frac {a^2 \int \frac {\cos (c+d x)}{(1-\sec (c+d x))^2 (\sec (c+d x) a+a)^{7/2}}d\sec (c+d x)}{d}\) |
| \(\Big \downarrow \) 114 |
| \(\displaystyle \frac {a^2 \left (\frac {1}{2 a (1-\sec (c+d x)) (a \sec (c+d x)+a)^{5/2}}-\frac {\int -\frac {a \cos (c+d x) (7 \sec (c+d x)+4)}{2 (1-\sec (c+d x)) (\sec (c+d x) a+a)^{7/2}}d\sec (c+d x)}{2 a}\right )}{d}\) |
| \(\Big \downarrow \) 27 |
| \(\displaystyle \frac {a^2 \left (\frac {1}{4} \int \frac {\cos (c+d x) (7 \sec (c+d x)+4)}{(1-\sec (c+d x)) (\sec (c+d x) a+a)^{7/2}}d\sec (c+d x)+\frac {1}{2 a (1-\sec (c+d x)) (a \sec (c+d x)+a)^{5/2}}\right )}{d}\) |
| \(\Big \downarrow \) 169 |
| \(\displaystyle \frac {a^2 \left (\frac {1}{4} \left (\frac {\int \frac {5 a \cos (c+d x) (3 \sec (c+d x)+8)}{2 (1-\sec (c+d x)) (\sec (c+d x) a+a)^{5/2}}d\sec (c+d x)}{5 a^2}-\frac {3}{5 a (a \sec (c+d x)+a)^{5/2}}\right )+\frac {1}{2 a (1-\sec (c+d x)) (a \sec (c+d x)+a)^{5/2}}\right )}{d}\) |
| \(\Big \downarrow \) 27 |
| \(\displaystyle \frac {a^2 \left (\frac {1}{4} \left (\frac {\int \frac {\cos (c+d x) (3 \sec (c+d x)+8)}{(1-\sec (c+d x)) (\sec (c+d x) a+a)^{5/2}}d\sec (c+d x)}{2 a}-\frac {3}{5 a (a \sec (c+d x)+a)^{5/2}}\right )+\frac {1}{2 a (1-\sec (c+d x)) (a \sec (c+d x)+a)^{5/2}}\right )}{d}\) |
| \(\Big \downarrow \) 169 |
| \(\displaystyle \frac {a^2 \left (\frac {1}{4} \left (\frac {\frac {\int \frac {3 a \cos (c+d x) (16-5 \sec (c+d x))}{2 (1-\sec (c+d x)) (\sec (c+d x) a+a)^{3/2}}d\sec (c+d x)}{3 a^2}+\frac {5}{3 a (a \sec (c+d x)+a)^{3/2}}}{2 a}-\frac {3}{5 a (a \sec (c+d x)+a)^{5/2}}\right )+\frac {1}{2 a (1-\sec (c+d x)) (a \sec (c+d x)+a)^{5/2}}\right )}{d}\) |
| \(\Big \downarrow \) 27 |
| \(\displaystyle \frac {a^2 \left (\frac {1}{4} \left (\frac {\frac {\int \frac {\cos (c+d x) (16-5 \sec (c+d x))}{(1-\sec (c+d x)) (\sec (c+d x) a+a)^{3/2}}d\sec (c+d x)}{2 a}+\frac {5}{3 a (a \sec (c+d x)+a)^{3/2}}}{2 a}-\frac {3}{5 a (a \sec (c+d x)+a)^{5/2}}\right )+\frac {1}{2 a (1-\sec (c+d x)) (a \sec (c+d x)+a)^{5/2}}\right )}{d}\) |
| \(\Big \downarrow \) 169 |
| \(\displaystyle \frac {a^2 \left (\frac {1}{4} \left (\frac {\frac {\frac {\int \frac {a \cos (c+d x) (32-21 \sec (c+d x))}{2 (1-\sec (c+d x)) \sqrt {\sec (c+d x) a+a}}d\sec (c+d x)}{a^2}+\frac {21}{a \sqrt {a \sec (c+d x)+a}}}{2 a}+\frac {5}{3 a (a \sec (c+d x)+a)^{3/2}}}{2 a}-\frac {3}{5 a (a \sec (c+d x)+a)^{5/2}}\right )+\frac {1}{2 a (1-\sec (c+d x)) (a \sec (c+d x)+a)^{5/2}}\right )}{d}\) |
| \(\Big \downarrow \) 27 |
| \(\displaystyle \frac {a^2 \left (\frac {1}{4} \left (\frac {\frac {\frac {\int \frac {\cos (c+d x) (32-21 \sec (c+d x))}{(1-\sec (c+d x)) \sqrt {\sec (c+d x) a+a}}d\sec (c+d x)}{2 a}+\frac {21}{a \sqrt {a \sec (c+d x)+a}}}{2 a}+\frac {5}{3 a (a \sec (c+d x)+a)^{3/2}}}{2 a}-\frac {3}{5 a (a \sec (c+d x)+a)^{5/2}}\right )+\frac {1}{2 a (1-\sec (c+d x)) (a \sec (c+d x)+a)^{5/2}}\right )}{d}\) |
| \(\Big \downarrow \) 174 |
| \(\displaystyle \frac {a^2 \left (\frac {1}{4} \left (\frac {\frac {\frac {11 \int \frac {1}{(1-\sec (c+d x)) \sqrt {\sec (c+d x) a+a}}d\sec (c+d x)+32 \int \frac {\cos (c+d x)}{\sqrt {\sec (c+d x) a+a}}d\sec (c+d x)}{2 a}+\frac {21}{a \sqrt {a \sec (c+d x)+a}}}{2 a}+\frac {5}{3 a (a \sec (c+d x)+a)^{3/2}}}{2 a}-\frac {3}{5 a (a \sec (c+d x)+a)^{5/2}}\right )+\frac {1}{2 a (1-\sec (c+d x)) (a \sec (c+d x)+a)^{5/2}}\right )}{d}\) |
| \(\Big \downarrow \) 73 |
| \(\displaystyle \frac {a^2 \left (\frac {1}{4} \left (\frac {\frac {\frac {\frac {22 \int \frac {1}{2-\frac {\sec (c+d x) a+a}{a}}d\sqrt {\sec (c+d x) a+a}}{a}+\frac {64 \int \frac {1}{\frac {\sec (c+d x) a+a}{a}-1}d\sqrt {\sec (c+d x) a+a}}{a}}{2 a}+\frac {21}{a \sqrt {a \sec (c+d x)+a}}}{2 a}+\frac {5}{3 a (a \sec (c+d x)+a)^{3/2}}}{2 a}-\frac {3}{5 a (a \sec (c+d x)+a)^{5/2}}\right )+\frac {1}{2 a (1-\sec (c+d x)) (a \sec (c+d x)+a)^{5/2}}\right )}{d}\) |
| \(\Big \downarrow \) 219 |
| \(\displaystyle \frac {a^2 \left (\frac {1}{4} \left (\frac {\frac {\frac {\frac {64 \int \frac {1}{\frac {\sec (c+d x) a+a}{a}-1}d\sqrt {\sec (c+d x) a+a}}{a}+\frac {11 \sqrt {2} \text {arctanh}\left (\frac {\sqrt {a \sec (c+d x)+a}}{\sqrt {2} \sqrt {a}}\right )}{\sqrt {a}}}{2 a}+\frac {21}{a \sqrt {a \sec (c+d x)+a}}}{2 a}+\frac {5}{3 a (a \sec (c+d x)+a)^{3/2}}}{2 a}-\frac {3}{5 a (a \sec (c+d x)+a)^{5/2}}\right )+\frac {1}{2 a (1-\sec (c+d x)) (a \sec (c+d x)+a)^{5/2}}\right )}{d}\) |
| \(\Big \downarrow \) 220 |
| \(\displaystyle \frac {a^2 \left (\frac {1}{4} \left (\frac {\frac {\frac {\frac {11 \sqrt {2} \text {arctanh}\left (\frac {\sqrt {a \sec (c+d x)+a}}{\sqrt {2} \sqrt {a}}\right )}{\sqrt {a}}-\frac {64 \text {arctanh}\left (\frac {\sqrt {a \sec (c+d x)+a}}{\sqrt {a}}\right )}{\sqrt {a}}}{2 a}+\frac {21}{a \sqrt {a \sec (c+d x)+a}}}{2 a}+\frac {5}{3 a (a \sec (c+d x)+a)^{3/2}}}{2 a}-\frac {3}{5 a (a \sec (c+d x)+a)^{5/2}}\right )+\frac {1}{2 a (1-\sec (c+d x)) (a \sec (c+d x)+a)^{5/2}}\right )}{d}\) |
(a^2*(1/(2*a*(1 - Sec[c + d*x])*(a + a*Sec[c + d*x])^(5/2)) + (-3/(5*a*(a + a*Sec[c + d*x])^(5/2)) + (5/(3*a*(a + a*Sec[c + d*x])^(3/2)) + (((-64*Ar cTanh[Sqrt[a + a*Sec[c + d*x]]/Sqrt[a]])/Sqrt[a] + (11*Sqrt[2]*ArcTanh[Sqr t[a + a*Sec[c + d*x]]/(Sqrt[2]*Sqrt[a])])/Sqrt[a])/(2*a) + 21/(a*Sqrt[a + a*Sec[c + d*x]]))/(2*a))/(2*a))/4))/d
3.2.87.3.1 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[((a_.) + (b_.)*(x_))^(m_)*((c_.) + (d_.)*(x_))^(n_), x_Symbol] :> With[ {p = Denominator[m]}, Simp[p/b Subst[Int[x^(p*(m + 1) - 1)*(c - a*(d/b) + d*(x^p/b))^n, x], x, (a + b*x)^(1/p)], x]] /; FreeQ[{a, b, c, d}, x] && Lt Q[-1, m, 0] && LeQ[-1, n, 0] && LeQ[Denominator[n], Denominator[m]] && IntL inearQ[a, b, c, d, m, n, x]
Int[((a_.) + (b_.)*(x_))^(m_)*((c_.) + (d_.)*(x_))^(n_)*((e_.) + (f_.)*(x_) )^(p_), x_] :> Simp[b*(a + b*x)^(m + 1)*(c + d*x)^(n + 1)*((e + f*x)^(p + 1 )/((m + 1)*(b*c - a*d)*(b*e - a*f))), x] + Simp[1/((m + 1)*(b*c - a*d)*(b*e - a*f)) Int[(a + b*x)^(m + 1)*(c + d*x)^n*(e + f*x)^p*Simp[a*d*f*(m + 1) - b*(d*e*(m + n + 2) + c*f*(m + p + 2)) - b*d*f*(m + n + p + 3)*x, x], x], x] /; FreeQ[{a, b, c, d, e, f, n, p}, x] && ILtQ[m, -1] && (IntegerQ[n] || IntegersQ[2*n, 2*p] || ILtQ[m + n + p + 3, 0])
Int[((a_.) + (b_.)*(x_))^(m_)*((c_.) + (d_.)*(x_))^(n_)*((e_.) + (f_.)*(x_) )^(p_)*((g_.) + (h_.)*(x_)), x_] :> Simp[(b*g - a*h)*(a + b*x)^(m + 1)*(c + d*x)^(n + 1)*((e + f*x)^(p + 1)/((m + 1)*(b*c - a*d)*(b*e - a*f))), x] + S imp[1/((m + 1)*(b*c - a*d)*(b*e - a*f)) Int[(a + b*x)^(m + 1)*(c + d*x)^n *(e + f*x)^p*Simp[(a*d*f*g - b*(d*e + c*f)*g + b*c*e*h)*(m + 1) - (b*g - a* h)*(d*e*(n + 1) + c*f*(p + 1)) - d*f*(b*g - a*h)*(m + n + p + 3)*x, x], x], x] /; FreeQ[{a, b, c, d, e, f, g, h, n, p}, x] && LtQ[m, -1] && IntegersQ[ 2*m, 2*n, 2*p]
Int[(((e_.) + (f_.)*(x_))^(p_)*((g_.) + (h_.)*(x_)))/(((a_.) + (b_.)*(x_))* ((c_.) + (d_.)*(x_))), x_] :> Simp[(b*g - a*h)/(b*c - a*d) Int[(e + f*x)^ p/(a + b*x), x], x] - Simp[(d*g - c*h)/(b*c - a*d) Int[(e + f*x)^p/(c + d *x), x], x] /; FreeQ[{a, b, c, d, e, f, g, h}, x]
Int[((a_) + (b_.)*(x_)^2)^(-1), x_Symbol] :> Simp[(1/(Rt[a, 2]*Rt[-b, 2]))* ArcTanh[Rt[-b, 2]*(x/Rt[a, 2])], x] /; FreeQ[{a, b}, x] && NegQ[a/b] && (Gt Q[a, 0] || LtQ[b, 0])
Int[((a_) + (b_.)*(x_)^2)^(-1), x_Symbol] :> Simp[(-(Rt[-a, 2]*Rt[b, 2])^(- 1))*ArcTanh[Rt[b, 2]*(x/Rt[-a, 2])], x] /; FreeQ[{a, b}, x] && NegQ[a/b] && (LtQ[a, 0] || GtQ[b, 0])
Int[cot[(c_.) + (d_.)*(x_)]^(m_.)*(csc[(c_.) + (d_.)*(x_)]*(b_.) + (a_))^(n _), x_Symbol] :> Simp[-(d*b^(m - 1))^(-1) Subst[Int[(-a + b*x)^((m - 1)/2 )*((a + b*x)^((m - 1)/2 + n)/x), x], x, Csc[c + d*x]], x] /; FreeQ[{a, b, c , d, n}, x] && IntegerQ[(m - 1)/2] && EqQ[a^2 - b^2, 0] && !IntegerQ[n]
Leaf count of result is larger than twice the leaf count of optimal. \(399\) vs. \(2(143)=286\).
Time = 1.92 (sec) , antiderivative size = 400, normalized size of antiderivative = 2.27
| method | result | size |
| default | \(\frac {\sqrt {a \left (1+\sec \left (d x +c \right )\right )}\, \left (165 \cos \left (d x +c \right )^{2} \arctan \left (\frac {\sqrt {2}}{2 \sqrt {-\frac {\cos \left (d x +c \right )}{\cos \left (d x +c \right )+1}}}\right ) \sqrt {2}\, \sqrt {-\frac {\cos \left (d x +c \right )}{\cos \left (d x +c \right )+1}}+330 \arctan \left (\frac {\sqrt {2}}{2 \sqrt {-\frac {\cos \left (d x +c \right )}{\cos \left (d x +c \right )+1}}}\right ) \cos \left (d x +c \right ) \sqrt {2}\, \sqrt {-\frac {\cos \left (d x +c \right )}{\cos \left (d x +c \right )+1}}+960 \cos \left (d x +c \right )^{2} \arctan \left (\sqrt {-\frac {\cos \left (d x +c \right )}{\cos \left (d x +c \right )+1}}\right ) \sqrt {-\frac {\cos \left (d x +c \right )}{\cos \left (d x +c \right )+1}}+165 \sqrt {2}\, \sqrt {-\frac {\cos \left (d x +c \right )}{\cos \left (d x +c \right )+1}}\, \arctan \left (\frac {\sqrt {2}}{2 \sqrt {-\frac {\cos \left (d x +c \right )}{\cos \left (d x +c \right )+1}}}\right )+1920 \arctan \left (\sqrt {-\frac {\cos \left (d x +c \right )}{\cos \left (d x +c \right )+1}}\right ) \cos \left (d x +c \right ) \sqrt {-\frac {\cos \left (d x +c \right )}{\cos \left (d x +c \right )+1}}+960 \arctan \left (\sqrt {-\frac {\cos \left (d x +c \right )}{\cos \left (d x +c \right )+1}}\right ) \sqrt {-\frac {\cos \left (d x +c \right )}{\cos \left (d x +c \right )+1}}-898 \cos \left (d x +c \right )^{2} \cot \left (d x +c \right )^{2}-702 \cos \left (d x +c \right ) \cot \left (d x +c \right )^{2}+730 \cot \left (d x +c \right )^{2}+630 \cot \left (d x +c \right ) \csc \left (d x +c \right )\right )}{480 d \,a^{2} \left (\cos \left (d x +c \right )+1\right )^{2}}\) | \(400\) |
1/480/d/a^2*(a*(1+sec(d*x+c)))^(1/2)/(cos(d*x+c)+1)^2*(165*cos(d*x+c)^2*ar ctan(1/2*2^(1/2)/(-cos(d*x+c)/(cos(d*x+c)+1))^(1/2))*2^(1/2)*(-cos(d*x+c)/ (cos(d*x+c)+1))^(1/2)+330*arctan(1/2*2^(1/2)/(-cos(d*x+c)/(cos(d*x+c)+1))^ (1/2))*cos(d*x+c)*2^(1/2)*(-cos(d*x+c)/(cos(d*x+c)+1))^(1/2)+960*cos(d*x+c )^2*arctan((-cos(d*x+c)/(cos(d*x+c)+1))^(1/2))*(-cos(d*x+c)/(cos(d*x+c)+1) )^(1/2)+165*2^(1/2)*(-cos(d*x+c)/(cos(d*x+c)+1))^(1/2)*arctan(1/2*2^(1/2)/ (-cos(d*x+c)/(cos(d*x+c)+1))^(1/2))+1920*arctan((-cos(d*x+c)/(cos(d*x+c)+1 ))^(1/2))*cos(d*x+c)*(-cos(d*x+c)/(cos(d*x+c)+1))^(1/2)+960*arctan((-cos(d *x+c)/(cos(d*x+c)+1))^(1/2))*(-cos(d*x+c)/(cos(d*x+c)+1))^(1/2)-898*cos(d* x+c)^2*cot(d*x+c)^2-702*cos(d*x+c)*cot(d*x+c)^2+730*cot(d*x+c)^2+630*cot(d *x+c)*csc(d*x+c))
Leaf count of result is larger than twice the leaf count of optimal. 283 vs. \(2 (141) = 282\).
Time = 0.38 (sec) , antiderivative size = 592, normalized size of antiderivative = 3.36 \[ \int \frac {\cot ^3(c+d x)}{(a+a \sec (c+d x))^{3/2}} \, dx=\left [\frac {165 \, \sqrt {2} {\left (\cos \left (d x + c\right )^{4} + 2 \, \cos \left (d x + c\right )^{3} - 2 \, \cos \left (d x + c\right ) - 1\right )} \sqrt {a} \log \left (\frac {2 \, \sqrt {2} \sqrt {a} \sqrt {\frac {a \cos \left (d x + c\right ) + a}{\cos \left (d x + c\right )}} \cos \left (d x + c\right ) + 3 \, a \cos \left (d x + c\right ) + a}{\cos \left (d x + c\right ) - 1}\right ) + 480 \, {\left (\cos \left (d x + c\right )^{4} + 2 \, \cos \left (d x + c\right )^{3} - 2 \, \cos \left (d x + c\right ) - 1\right )} \sqrt {a} \log \left (-8 \, a \cos \left (d x + c\right )^{2} + 4 \, {\left (2 \, \cos \left (d x + c\right )^{2} + \cos \left (d x + c\right )\right )} \sqrt {a} \sqrt {\frac {a \cos \left (d x + c\right ) + a}{\cos \left (d x + c\right )}} - 8 \, a \cos \left (d x + c\right ) - a\right ) + 4 \, {\left (449 \, \cos \left (d x + c\right )^{4} + 351 \, \cos \left (d x + c\right )^{3} - 365 \, \cos \left (d x + c\right )^{2} - 315 \, \cos \left (d x + c\right )\right )} \sqrt {\frac {a \cos \left (d x + c\right ) + a}{\cos \left (d x + c\right )}}}{960 \, {\left (a^{2} d \cos \left (d x + c\right )^{4} + 2 \, a^{2} d \cos \left (d x + c\right )^{3} - 2 \, a^{2} d \cos \left (d x + c\right ) - a^{2} d\right )}}, -\frac {165 \, \sqrt {2} {\left (\cos \left (d x + c\right )^{4} + 2 \, \cos \left (d x + c\right )^{3} - 2 \, \cos \left (d x + c\right ) - 1\right )} \sqrt {-a} \arctan \left (\frac {\sqrt {2} \sqrt {-a} \sqrt {\frac {a \cos \left (d x + c\right ) + a}{\cos \left (d x + c\right )}} \cos \left (d x + c\right )}{a \cos \left (d x + c\right ) + a}\right ) - 480 \, {\left (\cos \left (d x + c\right )^{4} + 2 \, \cos \left (d x + c\right )^{3} - 2 \, \cos \left (d x + c\right ) - 1\right )} \sqrt {-a} \arctan \left (\frac {2 \, \sqrt {-a} \sqrt {\frac {a \cos \left (d x + c\right ) + a}{\cos \left (d x + c\right )}} \cos \left (d x + c\right )}{2 \, a \cos \left (d x + c\right ) + a}\right ) - 2 \, {\left (449 \, \cos \left (d x + c\right )^{4} + 351 \, \cos \left (d x + c\right )^{3} - 365 \, \cos \left (d x + c\right )^{2} - 315 \, \cos \left (d x + c\right )\right )} \sqrt {\frac {a \cos \left (d x + c\right ) + a}{\cos \left (d x + c\right )}}}{480 \, {\left (a^{2} d \cos \left (d x + c\right )^{4} + 2 \, a^{2} d \cos \left (d x + c\right )^{3} - 2 \, a^{2} d \cos \left (d x + c\right ) - a^{2} d\right )}}\right ] \]
[1/960*(165*sqrt(2)*(cos(d*x + c)^4 + 2*cos(d*x + c)^3 - 2*cos(d*x + c) - 1)*sqrt(a)*log((2*sqrt(2)*sqrt(a)*sqrt((a*cos(d*x + c) + a)/cos(d*x + c))* cos(d*x + c) + 3*a*cos(d*x + c) + a)/(cos(d*x + c) - 1)) + 480*(cos(d*x + c)^4 + 2*cos(d*x + c)^3 - 2*cos(d*x + c) - 1)*sqrt(a)*log(-8*a*cos(d*x + c )^2 + 4*(2*cos(d*x + c)^2 + cos(d*x + c))*sqrt(a)*sqrt((a*cos(d*x + c) + a )/cos(d*x + c)) - 8*a*cos(d*x + c) - a) + 4*(449*cos(d*x + c)^4 + 351*cos( d*x + c)^3 - 365*cos(d*x + c)^2 - 315*cos(d*x + c))*sqrt((a*cos(d*x + c) + a)/cos(d*x + c)))/(a^2*d*cos(d*x + c)^4 + 2*a^2*d*cos(d*x + c)^3 - 2*a^2* d*cos(d*x + c) - a^2*d), -1/480*(165*sqrt(2)*(cos(d*x + c)^4 + 2*cos(d*x + c)^3 - 2*cos(d*x + c) - 1)*sqrt(-a)*arctan(sqrt(2)*sqrt(-a)*sqrt((a*cos(d *x + c) + a)/cos(d*x + c))*cos(d*x + c)/(a*cos(d*x + c) + a)) - 480*(cos(d *x + c)^4 + 2*cos(d*x + c)^3 - 2*cos(d*x + c) - 1)*sqrt(-a)*arctan(2*sqrt( -a)*sqrt((a*cos(d*x + c) + a)/cos(d*x + c))*cos(d*x + c)/(2*a*cos(d*x + c) + a)) - 2*(449*cos(d*x + c)^4 + 351*cos(d*x + c)^3 - 365*cos(d*x + c)^2 - 315*cos(d*x + c))*sqrt((a*cos(d*x + c) + a)/cos(d*x + c)))/(a^2*d*cos(d*x + c)^4 + 2*a^2*d*cos(d*x + c)^3 - 2*a^2*d*cos(d*x + c) - a^2*d)]
\[ \int \frac {\cot ^3(c+d x)}{(a+a \sec (c+d x))^{3/2}} \, dx=\int \frac {\cot ^{3}{\left (c + d x \right )}}{\left (a \left (\sec {\left (c + d x \right )} + 1\right )\right )^{\frac {3}{2}}}\, dx \]
\[ \int \frac {\cot ^3(c+d x)}{(a+a \sec (c+d x))^{3/2}} \, dx=\int { \frac {\cot \left (d x + c\right )^{3}}{{\left (a \sec \left (d x + c\right ) + a\right )}^{\frac {3}{2}}} \,d x } \]
Time = 1.09 (sec) , antiderivative size = 253, normalized size of antiderivative = 1.44 \[ \int \frac {\cot ^3(c+d x)}{(a+a \sec (c+d x))^{3/2}} \, dx=-\frac {\frac {165 \, \sqrt {2} \arctan \left (\frac {\sqrt {-a \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{2} + a}}{\sqrt {-a}}\right )}{\sqrt {-a} a \mathrm {sgn}\left (\cos \left (d x + c\right )\right )} - \frac {960 \, \arctan \left (\frac {\sqrt {2} \sqrt {-a \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{2} + a}}{2 \, \sqrt {-a}}\right )}{\sqrt {-a} a \mathrm {sgn}\left (\cos \left (d x + c\right )\right )} + \frac {15 \, \sqrt {2} \sqrt {-a \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{2} + a}}{a^{2} \mathrm {sgn}\left (\cos \left (d x + c\right )\right ) \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{2}} - \frac {2 \, \sqrt {2} {\left (3 \, {\left (a \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{2} - a\right )}^{2} \sqrt {-a \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{2} + a} a^{16} + 20 \, {\left (-a \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{2} + a\right )}^{\frac {3}{2}} a^{17} + 165 \, \sqrt {-a \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{2} + a} a^{18}\right )}}{a^{20} \mathrm {sgn}\left (\cos \left (d x + c\right )\right )}}{480 \, d} \]
-1/480*(165*sqrt(2)*arctan(sqrt(-a*tan(1/2*d*x + 1/2*c)^2 + a)/sqrt(-a))/( sqrt(-a)*a*sgn(cos(d*x + c))) - 960*arctan(1/2*sqrt(2)*sqrt(-a*tan(1/2*d*x + 1/2*c)^2 + a)/sqrt(-a))/(sqrt(-a)*a*sgn(cos(d*x + c))) + 15*sqrt(2)*sqr t(-a*tan(1/2*d*x + 1/2*c)^2 + a)/(a^2*sgn(cos(d*x + c))*tan(1/2*d*x + 1/2* c)^2) - 2*sqrt(2)*(3*(a*tan(1/2*d*x + 1/2*c)^2 - a)^2*sqrt(-a*tan(1/2*d*x + 1/2*c)^2 + a)*a^16 + 20*(-a*tan(1/2*d*x + 1/2*c)^2 + a)^(3/2)*a^17 + 165 *sqrt(-a*tan(1/2*d*x + 1/2*c)^2 + a)*a^18)/(a^20*sgn(cos(d*x + c))))/d
Timed out. \[ \int \frac {\cot ^3(c+d x)}{(a+a \sec (c+d x))^{3/2}} \, dx=\int \frac {{\mathrm {cot}\left (c+d\,x\right )}^3}{{\left (a+\frac {a}{\cos \left (c+d\,x\right )}\right )}^{3/2}} \,d x \]