Integrand size = 19, antiderivative size = 156 \[ \int \cot (e+f x) (d \cot (e+f x))^{3/2} \, dx=-\frac {d^{3/2} \arctan \left (1-\frac {\sqrt {2} \sqrt {d \cot (e+f x)}}{\sqrt {d}}\right )}{\sqrt {2} f}+\frac {d^{3/2} \arctan \left (1+\frac {\sqrt {2} \sqrt {d \cot (e+f x)}}{\sqrt {d}}\right )}{\sqrt {2} f}-\frac {d^{3/2} \text {arctanh}\left (\frac {\sqrt {2} \sqrt {d \cot (e+f x)}}{\sqrt {d}+\sqrt {d} \cot (e+f x)}\right )}{\sqrt {2} f}-\frac {2 (d \cot (e+f x))^{3/2}}{3 f} \] Output:
-1/2*d^(3/2)*arctan(1-2^(1/2)*(d*cot(f*x+e))^(1/2)/d^(1/2))*2^(1/2)/f+1/2* d^(3/2)*arctan(1+2^(1/2)*(d*cot(f*x+e))^(1/2)/d^(1/2))*2^(1/2)/f-1/2*d^(3/ 2)*arctanh(2^(1/2)*(d*cot(f*x+e))^(1/2)/(d^(1/2)+d^(1/2)*cot(f*x+e)))*2^(1 /2)/f-2/3*(d*cot(f*x+e))^(3/2)/f
Time = 0.18 (sec) , antiderivative size = 100, normalized size of antiderivative = 0.64 \[ \int \cot (e+f x) (d \cot (e+f x))^{3/2} \, dx=-\frac {(d \cot (e+f x))^{3/2} \left (-3 \arctan \left (\sqrt [4]{-\cot ^2(e+f x)}\right ) \sqrt [4]{-\cot (e+f x)}+3 \text {arctanh}\left (\sqrt [4]{-\cot ^2(e+f x)}\right ) \sqrt [4]{-\cot (e+f x)}+2 \cot ^{\frac {7}{4}}(e+f x)\right )}{3 f \cot ^{\frac {7}{4}}(e+f x)} \] Input:
Integrate[Cot[e + f*x]*(d*Cot[e + f*x])^(3/2),x]
Output:
-1/3*((d*Cot[e + f*x])^(3/2)*(-3*ArcTan[(-Cot[e + f*x]^2)^(1/4)]*(-Cot[e + f*x])^(1/4) + 3*ArcTanh[(-Cot[e + f*x]^2)^(1/4)]*(-Cot[e + f*x])^(1/4) + 2*Cot[e + f*x]^(7/4)))/(f*Cot[e + f*x]^(7/4))
Time = 0.45 (sec) , antiderivative size = 201, normalized size of antiderivative = 1.29, number of steps used = 15, number of rules used = 14, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.737, Rules used = {2030, 3042, 3954, 3042, 3957, 266, 826, 1476, 1082, 217, 1479, 25, 27, 1103}
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.
| \(\displaystyle \int \cot (e+f x) (d \cot (e+f x))^{3/2} \, dx\) |
| \(\Big \downarrow \) 2030 |
| \(\displaystyle \frac {\int (d \cot (e+f x))^{5/2}dx}{d}\) |
| \(\Big \downarrow \) 3042 |
| \(\displaystyle \frac {\int \left (-d \tan \left (e+f x+\frac {\pi }{2}\right )\right )^{5/2}dx}{d}\) |
| \(\Big \downarrow \) 3954 |
| \(\displaystyle \frac {d^2 \left (-\int \sqrt {d \cot (e+f x)}dx\right )-\frac {2 d (d \cot (e+f x))^{3/2}}{3 f}}{d}\) |
| \(\Big \downarrow \) 3042 |
| \(\displaystyle \frac {d^2 \left (-\int \sqrt {-d \tan \left (e+f x+\frac {\pi }{2}\right )}dx\right )-\frac {2 d (d \cot (e+f x))^{3/2}}{3 f}}{d}\) |
| \(\Big \downarrow \) 3957 |
| \(\displaystyle \frac {\frac {d^3 \int \frac {\sqrt {d \cot (e+f x)}}{\cot ^2(e+f x) d^2+d^2}d(d \cot (e+f x))}{f}-\frac {2 d (d \cot (e+f x))^{3/2}}{3 f}}{d}\) |
| \(\Big \downarrow \) 266 |
| \(\displaystyle \frac {\frac {2 d^3 \int \frac {d^2 \cot ^2(e+f x)}{d^4 \cot ^4(e+f x)+d^2}d\sqrt {d \cot (e+f x)}}{f}-\frac {2 d (d \cot (e+f x))^{3/2}}{3 f}}{d}\) |
| \(\Big \downarrow \) 826 |
| \(\displaystyle \frac {\frac {2 d^3 \left (\frac {1}{2} \int \frac {d^2 \cot ^2(e+f x)+d}{d^4 \cot ^4(e+f x)+d^2}d\sqrt {d \cot (e+f x)}-\frac {1}{2} \int \frac {d-d^2 \cot ^2(e+f x)}{d^4 \cot ^4(e+f x)+d^2}d\sqrt {d \cot (e+f x)}\right )}{f}-\frac {2 d (d \cot (e+f x))^{3/2}}{3 f}}{d}\) |
| \(\Big \downarrow \) 1476 |
| \(\displaystyle \frac {\frac {2 d^3 \left (\frac {1}{2} \left (\frac {1}{2} \int \frac {1}{d^2 \cot ^2(e+f x)-\sqrt {2} d^{3/2} \cot (e+f x)+d}d\sqrt {d \cot (e+f x)}+\frac {1}{2} \int \frac {1}{d^2 \cot ^2(e+f x)+\sqrt {2} d^{3/2} \cot (e+f x)+d}d\sqrt {d \cot (e+f x)}\right )-\frac {1}{2} \int \frac {d-d^2 \cot ^2(e+f x)}{d^4 \cot ^4(e+f x)+d^2}d\sqrt {d \cot (e+f x)}\right )}{f}-\frac {2 d (d \cot (e+f x))^{3/2}}{3 f}}{d}\) |
| \(\Big \downarrow \) 1082 |
| \(\displaystyle \frac {\frac {2 d^3 \left (\frac {1}{2} \left (\frac {\int \frac {1}{-d^2 \cot ^2(e+f x)-1}d\left (1-\sqrt {2} \sqrt {d} \cot (e+f x)\right )}{\sqrt {2} \sqrt {d}}-\frac {\int \frac {1}{-d^2 \cot ^2(e+f x)-1}d\left (\sqrt {2} \sqrt {d} \cot (e+f x)+1\right )}{\sqrt {2} \sqrt {d}}\right )-\frac {1}{2} \int \frac {d-d^2 \cot ^2(e+f x)}{d^4 \cot ^4(e+f x)+d^2}d\sqrt {d \cot (e+f x)}\right )}{f}-\frac {2 d (d \cot (e+f x))^{3/2}}{3 f}}{d}\) |
| \(\Big \downarrow \) 217 |
| \(\displaystyle \frac {\frac {2 d^3 \left (\frac {1}{2} \left (\frac {\arctan \left (\sqrt {2} \sqrt {d} \cot (e+f x)+1\right )}{\sqrt {2} \sqrt {d}}-\frac {\arctan \left (1-\sqrt {2} \sqrt {d} \cot (e+f x)\right )}{\sqrt {2} \sqrt {d}}\right )-\frac {1}{2} \int \frac {d-d^2 \cot ^2(e+f x)}{d^4 \cot ^4(e+f x)+d^2}d\sqrt {d \cot (e+f x)}\right )}{f}-\frac {2 d (d \cot (e+f x))^{3/2}}{3 f}}{d}\) |
| \(\Big \downarrow \) 1479 |
| \(\displaystyle \frac {\frac {2 d^3 \left (\frac {1}{2} \left (\frac {\int -\frac {\sqrt {2} \sqrt {d}-2 \sqrt {d \cot (e+f x)}}{d^2 \cot ^2(e+f x)-\sqrt {2} d^{3/2} \cot (e+f x)+d}d\sqrt {d \cot (e+f x)}}{2 \sqrt {2} \sqrt {d}}+\frac {\int -\frac {\sqrt {2} \left (\sqrt {d}+\sqrt {2} \sqrt {d \cot (e+f x)}\right )}{d^2 \cot ^2(e+f x)+\sqrt {2} d^{3/2} \cot (e+f x)+d}d\sqrt {d \cot (e+f x)}}{2 \sqrt {2} \sqrt {d}}\right )+\frac {1}{2} \left (\frac {\arctan \left (\sqrt {2} \sqrt {d} \cot (e+f x)+1\right )}{\sqrt {2} \sqrt {d}}-\frac {\arctan \left (1-\sqrt {2} \sqrt {d} \cot (e+f x)\right )}{\sqrt {2} \sqrt {d}}\right )\right )}{f}-\frac {2 d (d \cot (e+f x))^{3/2}}{3 f}}{d}\) |
| \(\Big \downarrow \) 25 |
| \(\displaystyle \frac {\frac {2 d^3 \left (\frac {1}{2} \left (-\frac {\int \frac {\sqrt {2} \sqrt {d}-2 \sqrt {d \cot (e+f x)}}{d^2 \cot ^2(e+f x)-\sqrt {2} d^{3/2} \cot (e+f x)+d}d\sqrt {d \cot (e+f x)}}{2 \sqrt {2} \sqrt {d}}-\frac {\int \frac {\sqrt {2} \left (\sqrt {d}+\sqrt {2} \sqrt {d \cot (e+f x)}\right )}{d^2 \cot ^2(e+f x)+\sqrt {2} d^{3/2} \cot (e+f x)+d}d\sqrt {d \cot (e+f x)}}{2 \sqrt {2} \sqrt {d}}\right )+\frac {1}{2} \left (\frac {\arctan \left (\sqrt {2} \sqrt {d} \cot (e+f x)+1\right )}{\sqrt {2} \sqrt {d}}-\frac {\arctan \left (1-\sqrt {2} \sqrt {d} \cot (e+f x)\right )}{\sqrt {2} \sqrt {d}}\right )\right )}{f}-\frac {2 d (d \cot (e+f x))^{3/2}}{3 f}}{d}\) |
| \(\Big \downarrow \) 27 |
| \(\displaystyle \frac {\frac {2 d^3 \left (\frac {1}{2} \left (-\frac {\int \frac {\sqrt {2} \sqrt {d}-2 \sqrt {d \cot (e+f x)}}{d^2 \cot ^2(e+f x)-\sqrt {2} d^{3/2} \cot (e+f x)+d}d\sqrt {d \cot (e+f x)}}{2 \sqrt {2} \sqrt {d}}-\frac {\int \frac {\sqrt {d}+\sqrt {2} \sqrt {d \cot (e+f x)}}{d^2 \cot ^2(e+f x)+\sqrt {2} d^{3/2} \cot (e+f x)+d}d\sqrt {d \cot (e+f x)}}{2 \sqrt {d}}\right )+\frac {1}{2} \left (\frac {\arctan \left (\sqrt {2} \sqrt {d} \cot (e+f x)+1\right )}{\sqrt {2} \sqrt {d}}-\frac {\arctan \left (1-\sqrt {2} \sqrt {d} \cot (e+f x)\right )}{\sqrt {2} \sqrt {d}}\right )\right )}{f}-\frac {2 d (d \cot (e+f x))^{3/2}}{3 f}}{d}\) |
| \(\Big \downarrow \) 1103 |
| \(\displaystyle \frac {\frac {2 d^3 \left (\frac {1}{2} \left (\frac {\arctan \left (\sqrt {2} \sqrt {d} \cot (e+f x)+1\right )}{\sqrt {2} \sqrt {d}}-\frac {\arctan \left (1-\sqrt {2} \sqrt {d} \cot (e+f x)\right )}{\sqrt {2} \sqrt {d}}\right )+\frac {1}{2} \left (\frac {\log \left (-\sqrt {2} d^{3/2} \cot (e+f x)+d^2 \cot ^2(e+f x)+d\right )}{2 \sqrt {2} \sqrt {d}}-\frac {\log \left (\sqrt {2} d^{3/2} \cot (e+f x)+d^2 \cot ^2(e+f x)+d\right )}{2 \sqrt {2} \sqrt {d}}\right )\right )}{f}-\frac {2 d (d \cot (e+f x))^{3/2}}{3 f}}{d}\) |
Input:
Int[Cot[e + f*x]*(d*Cot[e + f*x])^(3/2),x]
Output:
((-2*d*(d*Cot[e + f*x])^(3/2))/(3*f) + (2*d^3*((-(ArcTan[1 - Sqrt[2]*Sqrt[ d]*Cot[e + f*x]]/(Sqrt[2]*Sqrt[d])) + ArcTan[1 + Sqrt[2]*Sqrt[d]*Cot[e + f *x]]/(Sqrt[2]*Sqrt[d]))/2 + (Log[d - Sqrt[2]*d^(3/2)*Cot[e + f*x] + d^2*Co t[e + f*x]^2]/(2*Sqrt[2]*Sqrt[d]) - Log[d + Sqrt[2]*d^(3/2)*Cot[e + f*x] + d^2*Cot[e + f*x]^2]/(2*Sqrt[2]*Sqrt[d]))/2))/f)/d
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_)^2)^(-1), x_Symbol] :> Simp[(-(Rt[-a, 2]*Rt[-b, 2])^( -1))*ArcTan[Rt[-b, 2]*(x/Rt[-a, 2])], x] /; FreeQ[{a, b}, x] && PosQ[a/b] & & (LtQ[a, 0] || LtQ[b, 0])
Int[((c_.)*(x_))^(m_)*((a_) + (b_.)*(x_)^2)^(p_), x_Symbol] :> With[{k = De nominator[m]}, Simp[k/c Subst[Int[x^(k*(m + 1) - 1)*(a + b*(x^(2*k)/c^2)) ^p, x], x, (c*x)^(1/k)], x]] /; FreeQ[{a, b, c, p}, x] && FractionQ[m] && I ntBinomialQ[a, b, c, 2, m, p, x]
Int[(x_)^2/((a_) + (b_.)*(x_)^4), x_Symbol] :> With[{r = Numerator[Rt[a/b, 2]], s = Denominator[Rt[a/b, 2]]}, Simp[1/(2*s) Int[(r + s*x^2)/(a + b*x^ 4), x], x] - Simp[1/(2*s) Int[(r - s*x^2)/(a + b*x^4), x], x]] /; FreeQ[{ a, b}, x] && (GtQ[a/b, 0] || (PosQ[a/b] && AtomQ[SplitProduct[SumBaseQ, a]] && AtomQ[SplitProduct[SumBaseQ, b]]))
Int[((a_) + (b_.)*(x_) + (c_.)*(x_)^2)^(-1), x_Symbol] :> With[{q = 1 - 4*S implify[a*(c/b^2)]}, Simp[-2/b Subst[Int[1/(q - x^2), x], x, 1 + 2*c*(x/b )], x] /; RationalQ[q] && (EqQ[q^2, 1] || !RationalQ[b^2 - 4*a*c])] /; Fre eQ[{a, b, c}, x]
Int[((d_) + (e_.)*(x_))/((a_.) + (b_.)*(x_) + (c_.)*(x_)^2), x_Symbol] :> S imp[d*(Log[RemoveContent[a + b*x + c*x^2, x]]/b), x] /; FreeQ[{a, b, c, d, e}, x] && EqQ[2*c*d - b*e, 0]
Int[((d_) + (e_.)*(x_)^2)/((a_) + (c_.)*(x_)^4), x_Symbol] :> With[{q = Rt[ 2*(d/e), 2]}, Simp[e/(2*c) Int[1/Simp[d/e + q*x + x^2, x], x], x] + Simp[ e/(2*c) Int[1/Simp[d/e - q*x + x^2, x], x], x]] /; FreeQ[{a, c, d, e}, x] && EqQ[c*d^2 - a*e^2, 0] && PosQ[d*e]
Int[((d_) + (e_.)*(x_)^2)/((a_) + (c_.)*(x_)^4), x_Symbol] :> With[{q = Rt[ -2*(d/e), 2]}, Simp[e/(2*c*q) Int[(q - 2*x)/Simp[d/e + q*x - x^2, x], x], x] + Simp[e/(2*c*q) Int[(q + 2*x)/Simp[d/e - q*x - x^2, x], x], x]] /; F reeQ[{a, c, d, e}, x] && EqQ[c*d^2 - a*e^2, 0] && NegQ[d*e]
Int[(Fx_.)*(v_)^(m_.)*((b_)*(v_))^(n_), x_Symbol] :> Simp[1/b^m Int[(b*v) ^(m + n)*Fx, x], x] /; FreeQ[{b, n}, x] && IntegerQ[m]
Int[((b_.)*tan[(c_.) + (d_.)*(x_)])^(n_), x_Symbol] :> Simp[b*((b*Tan[c + d *x])^(n - 1)/(d*(n - 1))), x] - Simp[b^2 Int[(b*Tan[c + d*x])^(n - 2), x] , x] /; FreeQ[{b, c, d}, x] && GtQ[n, 1]
Int[((b_.)*tan[(c_.) + (d_.)*(x_)])^(n_), x_Symbol] :> Simp[b/d Subst[Int [x^n/(b^2 + x^2), x], x, b*Tan[c + d*x]], x] /; FreeQ[{b, c, d, n}, x] && !IntegerQ[n]
Time = 0.16 (sec) , antiderivative size = 152, normalized size of antiderivative = 0.97
| method | result | size |
| derivativedivides | \(\frac {-\frac {2 \left (d \cot \left (f x +e \right )\right )^{\frac {3}{2}}}{3}+\frac {d^{2} \sqrt {2}\, \left (\ln \left (\frac {d \cot \left (f x +e \right )-\left (d^{2}\right )^{\frac {1}{4}} \sqrt {d \cot \left (f x +e \right )}\, \sqrt {2}+\sqrt {d^{2}}}{d \cot \left (f x +e \right )+\left (d^{2}\right )^{\frac {1}{4}} \sqrt {d \cot \left (f x +e \right )}\, \sqrt {2}+\sqrt {d^{2}}}\right )+2 \arctan \left (\frac {\sqrt {2}\, \sqrt {d \cot \left (f x +e \right )}}{\left (d^{2}\right )^{\frac {1}{4}}}+1\right )-2 \arctan \left (-\frac {\sqrt {2}\, \sqrt {d \cot \left (f x +e \right )}}{\left (d^{2}\right )^{\frac {1}{4}}}+1\right )\right )}{4 \left (d^{2}\right )^{\frac {1}{4}}}}{f}\) | \(152\) |
| default | \(\frac {-\frac {2 \left (d \cot \left (f x +e \right )\right )^{\frac {3}{2}}}{3}+\frac {d^{2} \sqrt {2}\, \left (\ln \left (\frac {d \cot \left (f x +e \right )-\left (d^{2}\right )^{\frac {1}{4}} \sqrt {d \cot \left (f x +e \right )}\, \sqrt {2}+\sqrt {d^{2}}}{d \cot \left (f x +e \right )+\left (d^{2}\right )^{\frac {1}{4}} \sqrt {d \cot \left (f x +e \right )}\, \sqrt {2}+\sqrt {d^{2}}}\right )+2 \arctan \left (\frac {\sqrt {2}\, \sqrt {d \cot \left (f x +e \right )}}{\left (d^{2}\right )^{\frac {1}{4}}}+1\right )-2 \arctan \left (-\frac {\sqrt {2}\, \sqrt {d \cot \left (f x +e \right )}}{\left (d^{2}\right )^{\frac {1}{4}}}+1\right )\right )}{4 \left (d^{2}\right )^{\frac {1}{4}}}}{f}\) | \(152\) |
Input:
int(cot(f*x+e)*(d*cot(f*x+e))^(3/2),x,method=_RETURNVERBOSE)
Output:
1/f*(-2/3*(d*cot(f*x+e))^(3/2)+1/4*d^2/(d^2)^(1/4)*2^(1/2)*(ln((d*cot(f*x+ e)-(d^2)^(1/4)*(d*cot(f*x+e))^(1/2)*2^(1/2)+(d^2)^(1/2))/(d*cot(f*x+e)+(d^ 2)^(1/4)*(d*cot(f*x+e))^(1/2)*2^(1/2)+(d^2)^(1/2)))+2*arctan(2^(1/2)/(d^2) ^(1/4)*(d*cot(f*x+e))^(1/2)+1)-2*arctan(-2^(1/2)/(d^2)^(1/4)*(d*cot(f*x+e) )^(1/2)+1)))
Leaf count of result is larger than twice the leaf count of optimal. 376 vs. \(2 (121) = 242\).
Time = 0.09 (sec) , antiderivative size = 376, normalized size of antiderivative = 2.41 \[ \int \cot (e+f x) (d \cot (e+f x))^{3/2} \, dx=\frac {6 \, \sqrt {2} d^{\frac {3}{2}} \arctan \left (\frac {\sqrt {2} \sqrt {d} \sqrt {\frac {d \cos \left (2 \, f x + 2 \, e\right ) + d}{\sin \left (2 \, f x + 2 \, e\right )}} + d}{d}\right ) \sin \left (2 \, f x + 2 \, e\right ) + 6 \, \sqrt {2} d^{\frac {3}{2}} \arctan \left (\frac {\sqrt {2} \sqrt {d} \sqrt {\frac {d \cos \left (2 \, f x + 2 \, e\right ) + d}{\sin \left (2 \, f x + 2 \, e\right )}} - d}{d}\right ) \sin \left (2 \, f x + 2 \, e\right ) - 3 \, \sqrt {2} d^{\frac {3}{2}} \log \left (\frac {\sqrt {2} \sqrt {d} \sqrt {\frac {d \cos \left (2 \, f x + 2 \, e\right ) + d}{\sin \left (2 \, f x + 2 \, e\right )}} \sin \left (2 \, f x + 2 \, e\right ) + d \cos \left (2 \, f x + 2 \, e\right ) + d \sin \left (2 \, f x + 2 \, e\right ) + d}{\sin \left (2 \, f x + 2 \, e\right )}\right ) \sin \left (2 \, f x + 2 \, e\right ) + 3 \, \sqrt {2} d^{\frac {3}{2}} \log \left (-\frac {\sqrt {2} \sqrt {d} \sqrt {\frac {d \cos \left (2 \, f x + 2 \, e\right ) + d}{\sin \left (2 \, f x + 2 \, e\right )}} \sin \left (2 \, f x + 2 \, e\right ) - d \cos \left (2 \, f x + 2 \, e\right ) - d \sin \left (2 \, f x + 2 \, e\right ) - d}{\sin \left (2 \, f x + 2 \, e\right )}\right ) \sin \left (2 \, f x + 2 \, e\right ) - 8 \, {\left (d \cos \left (2 \, f x + 2 \, e\right ) + d\right )} \sqrt {\frac {d \cos \left (2 \, f x + 2 \, e\right ) + d}{\sin \left (2 \, f x + 2 \, e\right )}}}{12 \, f \sin \left (2 \, f x + 2 \, e\right )} \] Input:
integrate(cot(f*x+e)*(d*cot(f*x+e))^(3/2),x, algorithm="fricas")
Output:
1/12*(6*sqrt(2)*d^(3/2)*arctan((sqrt(2)*sqrt(d)*sqrt((d*cos(2*f*x + 2*e) + d)/sin(2*f*x + 2*e)) + d)/d)*sin(2*f*x + 2*e) + 6*sqrt(2)*d^(3/2)*arctan( (sqrt(2)*sqrt(d)*sqrt((d*cos(2*f*x + 2*e) + d)/sin(2*f*x + 2*e)) - d)/d)*s in(2*f*x + 2*e) - 3*sqrt(2)*d^(3/2)*log((sqrt(2)*sqrt(d)*sqrt((d*cos(2*f*x + 2*e) + d)/sin(2*f*x + 2*e))*sin(2*f*x + 2*e) + d*cos(2*f*x + 2*e) + d*s in(2*f*x + 2*e) + d)/sin(2*f*x + 2*e))*sin(2*f*x + 2*e) + 3*sqrt(2)*d^(3/2 )*log(-(sqrt(2)*sqrt(d)*sqrt((d*cos(2*f*x + 2*e) + d)/sin(2*f*x + 2*e))*si n(2*f*x + 2*e) - d*cos(2*f*x + 2*e) - d*sin(2*f*x + 2*e) - d)/sin(2*f*x + 2*e))*sin(2*f*x + 2*e) - 8*(d*cos(2*f*x + 2*e) + d)*sqrt((d*cos(2*f*x + 2* e) + d)/sin(2*f*x + 2*e)))/(f*sin(2*f*x + 2*e))
\[ \int \cot (e+f x) (d \cot (e+f x))^{3/2} \, dx=\int \left (d \cot {\left (e + f x \right )}\right )^{\frac {3}{2}} \cot {\left (e + f x \right )}\, dx \] Input:
integrate(cot(f*x+e)*(d*cot(f*x+e))**(3/2),x)
Output:
Integral((d*cot(e + f*x))**(3/2)*cot(e + f*x), x)
Time = 0.12 (sec) , antiderivative size = 184, normalized size of antiderivative = 1.18 \[ \int \cot (e+f x) (d \cot (e+f x))^{3/2} \, dx=\frac {3 \, d^{2} {\left (\frac {2 \, \sqrt {2} \arctan \left (\frac {\sqrt {2} {\left (\sqrt {2} \sqrt {d} + 2 \, \sqrt {\frac {d}{\tan \left (f x + e\right )}}\right )}}{2 \, \sqrt {d}}\right )}{\sqrt {d}} + \frac {2 \, \sqrt {2} \arctan \left (-\frac {\sqrt {2} {\left (\sqrt {2} \sqrt {d} - 2 \, \sqrt {\frac {d}{\tan \left (f x + e\right )}}\right )}}{2 \, \sqrt {d}}\right )}{\sqrt {d}} - \frac {\sqrt {2} \log \left (\sqrt {2} \sqrt {d} \sqrt {\frac {d}{\tan \left (f x + e\right )}} + d + \frac {d}{\tan \left (f x + e\right )}\right )}{\sqrt {d}} + \frac {\sqrt {2} \log \left (-\sqrt {2} \sqrt {d} \sqrt {\frac {d}{\tan \left (f x + e\right )}} + d + \frac {d}{\tan \left (f x + e\right )}\right )}{\sqrt {d}}\right )} - 8 \, \left (\frac {d}{\tan \left (f x + e\right )}\right )^{\frac {3}{2}}}{12 \, f} \] Input:
integrate(cot(f*x+e)*(d*cot(f*x+e))^(3/2),x, algorithm="maxima")
Output:
1/12*(3*d^2*(2*sqrt(2)*arctan(1/2*sqrt(2)*(sqrt(2)*sqrt(d) + 2*sqrt(d/tan( f*x + e)))/sqrt(d))/sqrt(d) + 2*sqrt(2)*arctan(-1/2*sqrt(2)*(sqrt(2)*sqrt( d) - 2*sqrt(d/tan(f*x + e)))/sqrt(d))/sqrt(d) - sqrt(2)*log(sqrt(2)*sqrt(d )*sqrt(d/tan(f*x + e)) + d + d/tan(f*x + e))/sqrt(d) + sqrt(2)*log(-sqrt(2 )*sqrt(d)*sqrt(d/tan(f*x + e)) + d + d/tan(f*x + e))/sqrt(d)) - 8*(d/tan(f *x + e))^(3/2))/f
\[ \int \cot (e+f x) (d \cot (e+f x))^{3/2} \, dx=\int { \left (d \cot \left (f x + e\right )\right )^{\frac {3}{2}} \cot \left (f x + e\right ) \,d x } \] Input:
integrate(cot(f*x+e)*(d*cot(f*x+e))^(3/2),x, algorithm="giac")
Output:
integrate((d*cot(f*x + e))^(3/2)*cot(f*x + e), x)
Time = 0.46 (sec) , antiderivative size = 73, normalized size of antiderivative = 0.47 \[ \int \cot (e+f x) (d \cot (e+f x))^{3/2} \, dx=\frac {{\left (-1\right )}^{1/4}\,d^{3/2}\,\mathrm {atan}\left (\frac {{\left (-1\right )}^{1/4}\,\sqrt {d\,\mathrm {cot}\left (e+f\,x\right )}}{\sqrt {d}}\right )}{f}-\frac {2\,{\left (d\,\mathrm {cot}\left (e+f\,x\right )\right )}^{3/2}}{3\,f}-\frac {{\left (-1\right )}^{1/4}\,d^{3/2}\,\mathrm {atanh}\left (\frac {{\left (-1\right )}^{1/4}\,\sqrt {d\,\mathrm {cot}\left (e+f\,x\right )}}{\sqrt {d}}\right )}{f} \] Input:
int(cot(e + f*x)*(d*cot(e + f*x))^(3/2),x)
Output:
((-1)^(1/4)*d^(3/2)*atan(((-1)^(1/4)*(d*cot(e + f*x))^(1/2))/d^(1/2)))/f - (2*(d*cot(e + f*x))^(3/2))/(3*f) - ((-1)^(1/4)*d^(3/2)*atanh(((-1)^(1/4)* (d*cot(e + f*x))^(1/2))/d^(1/2)))/f
\[ \int \cot (e+f x) (d \cot (e+f x))^{3/2} \, dx=\sqrt {d}\, \left (\int \sqrt {\cot \left (f x +e \right )}\, \cot \left (f x +e \right )^{2}d x \right ) d \] Input:
int(cot(f*x+e)*(d*cot(f*x+e))^(3/2),x)
Output:
sqrt(d)*int(sqrt(cot(e + f*x))*cot(e + f*x)**2,x)*d