\(\int \csc ^3(a+b x) \sqrt {d \tan (a+b x)} \, dx\) [62]

Optimal result

Integrand size = 21, antiderivative size = 77 \[ \int \csc ^3(a+b x) \sqrt {d \tan (a+b x)} \, dx=-\frac {2 d \csc (a+b x)}{3 b \sqrt {d \tan (a+b x)}}+\frac {2 \csc (a+b x) \operatorname {EllipticF}\left (a-\frac {\pi }{4}+b x,2\right ) \sqrt {\sin (2 a+2 b x)} \sqrt {d \tan (a+b x)}}{3 b} \] Output:

-2/3*d*csc(b*x+a)/b/(d*tan(b*x+a))^(1/2)+2/3*csc(b*x+a)*InverseJacobiAM(a- 
1/4*Pi+b*x,2^(1/2))*sin(2*b*x+2*a)^(1/2)*(d*tan(b*x+a))^(1/2)/b
 

Mathematica [C] (warning: unable to verify)

Result contains complex when optimal does not.

Time = 0.53 (sec) , antiderivative size = 115, normalized size of antiderivative = 1.49 \[ \int \csc ^3(a+b x) \sqrt {d \tan (a+b x)} \, dx=\frac {2 \cos (2 (a+b x)) \csc ^3(a+b x) (d \tan (a+b x))^{3/2} \left (\sqrt {\sec ^2(a+b x)}+2 \sqrt [4]{-1} \operatorname {EllipticF}\left (i \text {arcsinh}\left (\sqrt [4]{-1} \sqrt {\tan (a+b x)}\right ),-1\right ) \tan ^{\frac {3}{2}}(a+b x)\right )}{3 b d \sqrt {\sec ^2(a+b x)} \left (-1+\tan ^2(a+b x)\right )} \] Input:

Integrate[Csc[a + b*x]^3*Sqrt[d*Tan[a + b*x]],x]
 

Output:

(2*Cos[2*(a + b*x)]*Csc[a + b*x]^3*(d*Tan[a + b*x])^(3/2)*(Sqrt[Sec[a + b* 
x]^2] + 2*(-1)^(1/4)*EllipticF[I*ArcSinh[(-1)^(1/4)*Sqrt[Tan[a + b*x]]], - 
1]*Tan[a + b*x]^(3/2)))/(3*b*d*Sqrt[Sec[a + b*x]^2]*(-1 + Tan[a + b*x]^2))
 

Rubi [A] (verified)

Time = 0.43 (sec) , antiderivative size = 77, normalized size of antiderivative = 1.00, number of steps used = 8, number of rules used = 8, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.381, Rules used = {3042, 3079, 3042, 3081, 3042, 3053, 3042, 3120}

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.

\(\displaystyle \int \csc ^3(a+b x) \sqrt {d \tan (a+b x)} \, dx\)

\(\Big \downarrow \) 3042

\(\displaystyle \int \frac {\sqrt {d \tan (a+b x)}}{\sin (a+b x)^3}dx\)

\(\Big \downarrow \) 3079

\(\displaystyle \frac {2}{3} \int \csc (a+b x) \sqrt {d \tan (a+b x)}dx-\frac {2 d \csc (a+b x)}{3 b \sqrt {d \tan (a+b x)}}\)

\(\Big \downarrow \) 3042

\(\displaystyle \frac {2}{3} \int \frac {\sqrt {d \tan (a+b x)}}{\sin (a+b x)}dx-\frac {2 d \csc (a+b x)}{3 b \sqrt {d \tan (a+b x)}}\)

\(\Big \downarrow \) 3081

\(\displaystyle \frac {2 \sqrt {\cos (a+b x)} \sqrt {d \tan (a+b x)} \int \frac {1}{\sqrt {\cos (a+b x)} \sqrt {\sin (a+b x)}}dx}{3 \sqrt {\sin (a+b x)}}-\frac {2 d \csc (a+b x)}{3 b \sqrt {d \tan (a+b x)}}\)

\(\Big \downarrow \) 3042

\(\displaystyle \frac {2 \sqrt {\cos (a+b x)} \sqrt {d \tan (a+b x)} \int \frac {1}{\sqrt {\cos (a+b x)} \sqrt {\sin (a+b x)}}dx}{3 \sqrt {\sin (a+b x)}}-\frac {2 d \csc (a+b x)}{3 b \sqrt {d \tan (a+b x)}}\)

\(\Big \downarrow \) 3053

\(\displaystyle \frac {2}{3} \sqrt {\sin (2 a+2 b x)} \csc (a+b x) \sqrt {d \tan (a+b x)} \int \frac {1}{\sqrt {\sin (2 a+2 b x)}}dx-\frac {2 d \csc (a+b x)}{3 b \sqrt {d \tan (a+b x)}}\)

\(\Big \downarrow \) 3042

\(\displaystyle \frac {2}{3} \sqrt {\sin (2 a+2 b x)} \csc (a+b x) \sqrt {d \tan (a+b x)} \int \frac {1}{\sqrt {\sin (2 a+2 b x)}}dx-\frac {2 d \csc (a+b x)}{3 b \sqrt {d \tan (a+b x)}}\)

\(\Big \downarrow \) 3120

\(\displaystyle \frac {2 \sqrt {\sin (2 a+2 b x)} \csc (a+b x) \operatorname {EllipticF}\left (a+b x-\frac {\pi }{4},2\right ) \sqrt {d \tan (a+b x)}}{3 b}-\frac {2 d \csc (a+b x)}{3 b \sqrt {d \tan (a+b x)}}\)

Input:

Int[Csc[a + b*x]^3*Sqrt[d*Tan[a + b*x]],x]
 

Output:

(-2*d*Csc[a + b*x])/(3*b*Sqrt[d*Tan[a + b*x]]) + (2*Csc[a + b*x]*EllipticF 
[a - Pi/4 + b*x, 2]*Sqrt[Sin[2*a + 2*b*x]]*Sqrt[d*Tan[a + b*x]])/(3*b)
 

Defintions of rubi rules used

rule 3042

Int[u_, x_Symbol] :> Int[DeactivateTrig[u, x], x] /; FunctionOfTrigOfLinear 
Q[u, x]
 

rule 3053

Int[1/(Sqrt[cos[(e_.) + (f_.)*(x_)]*(b_.)]*Sqrt[(a_.)*sin[(e_.) + (f_.)*(x_ 
)]]), x_Symbol] :> Simp[Sqrt[Sin[2*e + 2*f*x]]/(Sqrt[a*Sin[e + f*x]]*Sqrt[b 
*Cos[e + f*x]])   Int[1/Sqrt[Sin[2*e + 2*f*x]], x], x] /; FreeQ[{a, b, e, f 
}, x]
 

rule 3079

Int[((a_.)*sin[(e_.) + (f_.)*(x_)])^(m_)*((b_.)*tan[(e_.) + (f_.)*(x_)])^(n 
_.), x_Symbol] :> Simp[b*(a*Sin[e + f*x])^(m + 2)*((b*Tan[e + f*x])^(n - 1) 
/(a^2*f*(m + n + 1))), x] + Simp[(m + 2)/(a^2*(m + n + 1))   Int[(a*Sin[e + 
 f*x])^(m + 2)*(b*Tan[e + f*x])^n, x], x] /; FreeQ[{a, b, e, f, n}, x] && L 
tQ[m, -1] && NeQ[m + n + 1, 0] && IntegersQ[2*m, 2*n]
 

rule 3081

Int[((a_.)*sin[(e_.) + (f_.)*(x_)])^(m_.)*((b_.)*tan[(e_.) + (f_.)*(x_)])^( 
n_), x_Symbol] :> Simp[Cos[e + f*x]^n*((b*Tan[e + f*x])^n/(a*Sin[e + f*x])^ 
n)   Int[(a*Sin[e + f*x])^(m + n)/Cos[e + f*x]^n, x], x] /; FreeQ[{a, b, e, 
 f, m, n}, x] &&  !IntegerQ[n] && (ILtQ[m, 0] || (EqQ[m, 1] && EqQ[n, -2^(- 
1)]) || IntegersQ[m - 1/2, n - 1/2])
 

rule 3120

Int[1/Sqrt[sin[(c_.) + (d_.)*(x_)]], x_Symbol] :> Simp[(2/d)*EllipticF[(1/2 
)*(c - Pi/2 + d*x), 2], x] /; FreeQ[{c, d}, x]
 

Maple [A] (verified)

Time = 0.78 (sec) , antiderivative size = 124, normalized size of antiderivative = 1.61

method	result	size
default	\(\frac {2 \sqrt {d \tan \left (b x +a \right )}\, \left (\sqrt {\csc \left (b x +a \right )-\cot \left (b x +a \right )+1}\, \sqrt {-2 \csc \left (b x +a \right )+2 \cot \left (b x +a \right )+2}\, \sqrt {-\csc \left (b x +a \right )+\cot \left (b x +a \right )}\, \operatorname {EllipticF}\left (\sqrt {\csc \left (b x +a \right )-\cot \left (b x +a \right )+1}, \frac {\sqrt {2}}{2}\right ) \left (\cot \left (b x +a \right )+\csc \left (b x +a \right )\right )-\cot \left (b x +a \right ) \csc \left (b x +a \right )\right )}{3 b}\)	\(124\)

Input:

int(csc(b*x+a)^3*(d*tan(b*x+a))^(1/2),x,method=_RETURNVERBOSE)
 

Output:

2/3/b*(d*tan(b*x+a))^(1/2)*((csc(b*x+a)-cot(b*x+a)+1)^(1/2)*(-2*csc(b*x+a) 
+2*cot(b*x+a)+2)^(1/2)*(-csc(b*x+a)+cot(b*x+a))^(1/2)*EllipticF((csc(b*x+a 
)-cot(b*x+a)+1)^(1/2),1/2*2^(1/2))*(cot(b*x+a)+csc(b*x+a))-cot(b*x+a)*csc( 
b*x+a))
 

Fricas [C] (verification not implemented)

Result contains complex when optimal does not.

Time = 0.14 (sec) , antiderivative size = 113, normalized size of antiderivative = 1.47 \[ \int \csc ^3(a+b x) \sqrt {d \tan (a+b x)} \, dx=-\frac {2 \, {\left ({\left (\cos \left (b x + a\right )^{2} - 1\right )} \sqrt {i \, d} F(\arcsin \left (\cos \left (b x + a\right ) + i \, \sin \left (b x + a\right )\right )\,|\,-1) + {\left (\cos \left (b x + a\right )^{2} - 1\right )} \sqrt {-i \, d} F(\arcsin \left (\cos \left (b x + a\right ) - i \, \sin \left (b x + a\right )\right )\,|\,-1) - \sqrt {\frac {d \sin \left (b x + a\right )}{\cos \left (b x + a\right )}} \cos \left (b x + a\right )\right )}}{3 \, {\left (b \cos \left (b x + a\right )^{2} - b\right )}} \] Input:

integrate(csc(b*x+a)^3*(d*tan(b*x+a))^(1/2),x, algorithm="fricas")
 

Output:

-2/3*((cos(b*x + a)^2 - 1)*sqrt(I*d)*elliptic_f(arcsin(cos(b*x + a) + I*si 
n(b*x + a)), -1) + (cos(b*x + a)^2 - 1)*sqrt(-I*d)*elliptic_f(arcsin(cos(b 
*x + a) - I*sin(b*x + a)), -1) - sqrt(d*sin(b*x + a)/cos(b*x + a))*cos(b*x 
 + a))/(b*cos(b*x + a)^2 - b)
                                                                                    
                                                                                    
 

Sympy [F]

\[ \int \csc ^3(a+b x) \sqrt {d \tan (a+b x)} \, dx=\int \sqrt {d \tan {\left (a + b x \right )}} \csc ^{3}{\left (a + b x \right )}\, dx \] Input:

integrate(csc(b*x+a)**3*(d*tan(b*x+a))**(1/2),x)
 

Output:

Integral(sqrt(d*tan(a + b*x))*csc(a + b*x)**3, x)
 

Maxima [F]

\[ \int \csc ^3(a+b x) \sqrt {d \tan (a+b x)} \, dx=\int { \sqrt {d \tan \left (b x + a\right )} \csc \left (b x + a\right )^{3} \,d x } \] Input:

integrate(csc(b*x+a)^3*(d*tan(b*x+a))^(1/2),x, algorithm="maxima")
 

Output:

integrate(sqrt(d*tan(b*x + a))*csc(b*x + a)^3, x)
 

Giac [F]

\[ \int \csc ^3(a+b x) \sqrt {d \tan (a+b x)} \, dx=\int { \sqrt {d \tan \left (b x + a\right )} \csc \left (b x + a\right )^{3} \,d x } \] Input:

integrate(csc(b*x+a)^3*(d*tan(b*x+a))^(1/2),x, algorithm="giac")
 

Output:

integrate(sqrt(d*tan(b*x + a))*csc(b*x + a)^3, x)
 

Mupad [F(-1)]

Timed out. \[ \int \csc ^3(a+b x) \sqrt {d \tan (a+b x)} \, dx=\int \frac {\sqrt {d\,\mathrm {tan}\left (a+b\,x\right )}}{{\sin \left (a+b\,x\right )}^3} \,d x \] Input:

int((d*tan(a + b*x))^(1/2)/sin(a + b*x)^3,x)
 

Output:

int((d*tan(a + b*x))^(1/2)/sin(a + b*x)^3, x)
 

Reduce [F]

\[ \int \csc ^3(a+b x) \sqrt {d \tan (a+b x)} \, dx=\sqrt {d}\, \left (\int \sqrt {\tan \left (b x +a \right )}\, \csc \left (b x +a \right )^{3}d x \right ) \] Input:

int(csc(b*x+a)^3*(d*tan(b*x+a))^(1/2),x)
 

Output:

sqrt(d)*int(sqrt(tan(a + b*x))*csc(a + b*x)**3,x)