Integrand size = 23, antiderivative size = 294 \[ \int \sec (e+f x) \left (a+b \sec ^2(e+f x)\right )^{3/2} \, dx=\frac {2 (2 a+b) \sin (e+f x) \sqrt {\sec ^2(e+f x) \left (a+b-a \sin ^2(e+f x)\right )}}{3 f}-\frac {2 (2 a+b) \sqrt {\cos ^2(e+f x)} E\left (\arcsin (\sin (e+f x))\left |\frac {a}{a+b}\right .\right ) \sqrt {\sec ^2(e+f x) \left (a+b-a \sin ^2(e+f x)\right )}}{3 f \sqrt {\frac {a+b-a \sin ^2(e+f x)}{a+b}}}+\frac {(a+b) (3 a+2 b) \sqrt {\cos ^2(e+f x)} \operatorname {EllipticF}\left (\arcsin (\sin (e+f x)),\frac {a}{a+b}\right ) \sqrt {\frac {a+b-a \sin ^2(e+f x)}{a+b}} \sqrt {\sec ^2(e+f x) \left (a+b-a \sin ^2(e+f x)\right )}}{3 f \left (a+b-a \sin ^2(e+f x)\right )}+\frac {b \sec (e+f x) \sqrt {\sec ^2(e+f x) \left (a+b-a \sin ^2(e+f x)\right )} \tan (e+f x)}{3 f} \] Output:
2/3*(2*a+b)*sin(f*x+e)*(sec(f*x+e)^2*(a+b-a*sin(f*x+e)^2))^(1/2)/f-2/3*(2* a+b)*(cos(f*x+e)^2)^(1/2)*EllipticE(sin(f*x+e),(a/(a+b))^(1/2))*(sec(f*x+e )^2*(a+b-a*sin(f*x+e)^2))^(1/2)/f/((a+b-a*sin(f*x+e)^2)/(a+b))^(1/2)+1/3*( a+b)*(3*a+2*b)*(cos(f*x+e)^2)^(1/2)*EllipticF(sin(f*x+e),(a/(a+b))^(1/2))* ((a+b-a*sin(f*x+e)^2)/(a+b))^(1/2)*(sec(f*x+e)^2*(a+b-a*sin(f*x+e)^2))^(1/ 2)/f/(a+b-a*sin(f*x+e)^2)+1/3*b*sec(f*x+e)*(sec(f*x+e)^2*(a+b-a*sin(f*x+e) ^2))^(1/2)*tan(f*x+e)/f
\[ \int \sec (e+f x) \left (a+b \sec ^2(e+f x)\right )^{3/2} \, dx=\int \sec (e+f x) \left (a+b \sec ^2(e+f x)\right )^{3/2} \, dx \] Input:
Integrate[Sec[e + f*x]*(a + b*Sec[e + f*x]^2)^(3/2),x]
Output:
Integrate[Sec[e + f*x]*(a + b*Sec[e + f*x]^2)^(3/2), x]
Time = 0.59 (sec) , antiderivative size = 308, normalized size of antiderivative = 1.05, number of steps used = 15, number of rules used = 14, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.609, Rules used = {3042, 4636, 2057, 2058, 315, 25, 402, 25, 27, 399, 323, 321, 330, 327}
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.
\(\displaystyle \int \sec (e+f x) \left (a+b \sec ^2(e+f x)\right )^{3/2} \, dx\) |
\(\Big \downarrow \) 3042 |
\(\displaystyle \int \sec (e+f x) \left (a+b \sec (e+f x)^2\right )^{3/2}dx\) |
\(\Big \downarrow \) 4636 |
\(\displaystyle \frac {\int \frac {\left (a+\frac {b}{1-\sin ^2(e+f x)}\right )^{3/2}}{1-\sin ^2(e+f x)}d\sin (e+f x)}{f}\) |
\(\Big \downarrow \) 2057 |
\(\displaystyle \frac {\int \frac {\left (\frac {-a \sin ^2(e+f x)+a+b}{1-\sin ^2(e+f x)}\right )^{3/2}}{1-\sin ^2(e+f x)}d\sin (e+f x)}{f}\) |
\(\Big \downarrow \) 2058 |
\(\displaystyle \frac {\sqrt {1-\sin ^2(e+f x)} \sqrt {\frac {-a \sin ^2(e+f x)+a+b}{1-\sin ^2(e+f x)}} \int \frac {\left (-a \sin ^2(e+f x)+a+b\right )^{3/2}}{\left (1-\sin ^2(e+f x)\right )^{5/2}}d\sin (e+f x)}{f \sqrt {-a \sin ^2(e+f x)+a+b}}\) |
\(\Big \downarrow \) 315 |
\(\displaystyle \frac {\sqrt {1-\sin ^2(e+f x)} \sqrt {\frac {-a \sin ^2(e+f x)+a+b}{1-\sin ^2(e+f x)}} \left (\frac {b \sin (e+f x) \sqrt {-a \sin ^2(e+f x)+a+b}}{3 \left (1-\sin ^2(e+f x)\right )^{3/2}}-\frac {1}{3} \int -\frac {(a+b) (3 a+2 b)-a (3 a+b) \sin ^2(e+f x)}{\left (1-\sin ^2(e+f x)\right )^{3/2} \sqrt {-a \sin ^2(e+f x)+a+b}}d\sin (e+f x)\right )}{f \sqrt {-a \sin ^2(e+f x)+a+b}}\) |
\(\Big \downarrow \) 25 |
\(\displaystyle \frac {\sqrt {1-\sin ^2(e+f x)} \sqrt {\frac {-a \sin ^2(e+f x)+a+b}{1-\sin ^2(e+f x)}} \left (\frac {1}{3} \int \frac {(a+b) (3 a+2 b)-a (3 a+b) \sin ^2(e+f x)}{\left (1-\sin ^2(e+f x)\right )^{3/2} \sqrt {-a \sin ^2(e+f x)+a+b}}d\sin (e+f x)+\frac {b \sin (e+f x) \sqrt {-a \sin ^2(e+f x)+a+b}}{3 \left (1-\sin ^2(e+f x)\right )^{3/2}}\right )}{f \sqrt {-a \sin ^2(e+f x)+a+b}}\) |
\(\Big \downarrow \) 402 |
\(\displaystyle \frac {\sqrt {1-\sin ^2(e+f x)} \sqrt {\frac {-a \sin ^2(e+f x)+a+b}{1-\sin ^2(e+f x)}} \left (\frac {1}{3} \left (\frac {\int -\frac {a b \left (-2 (2 a+b) \sin ^2(e+f x)+a+b\right )}{\sqrt {1-\sin ^2(e+f x)} \sqrt {-a \sin ^2(e+f x)+a+b}}d\sin (e+f x)}{b}+\frac {2 (2 a+b) \sin (e+f x) \sqrt {-a \sin ^2(e+f x)+a+b}}{\sqrt {1-\sin ^2(e+f x)}}\right )+\frac {b \sin (e+f x) \sqrt {-a \sin ^2(e+f x)+a+b}}{3 \left (1-\sin ^2(e+f x)\right )^{3/2}}\right )}{f \sqrt {-a \sin ^2(e+f x)+a+b}}\) |
\(\Big \downarrow \) 25 |
\(\displaystyle \frac {\sqrt {1-\sin ^2(e+f x)} \sqrt {\frac {-a \sin ^2(e+f x)+a+b}{1-\sin ^2(e+f x)}} \left (\frac {1}{3} \left (\frac {2 (2 a+b) \sin (e+f x) \sqrt {-a \sin ^2(e+f x)+a+b}}{\sqrt {1-\sin ^2(e+f x)}}-\frac {\int \frac {a b \left (-2 (2 a+b) \sin ^2(e+f x)+a+b\right )}{\sqrt {1-\sin ^2(e+f x)} \sqrt {-a \sin ^2(e+f x)+a+b}}d\sin (e+f x)}{b}\right )+\frac {b \sin (e+f x) \sqrt {-a \sin ^2(e+f x)+a+b}}{3 \left (1-\sin ^2(e+f x)\right )^{3/2}}\right )}{f \sqrt {-a \sin ^2(e+f x)+a+b}}\) |
\(\Big \downarrow \) 27 |
\(\displaystyle \frac {\sqrt {1-\sin ^2(e+f x)} \sqrt {\frac {-a \sin ^2(e+f x)+a+b}{1-\sin ^2(e+f x)}} \left (\frac {1}{3} \left (\frac {2 (2 a+b) \sin (e+f x) \sqrt {-a \sin ^2(e+f x)+a+b}}{\sqrt {1-\sin ^2(e+f x)}}-a \int \frac {-2 (2 a+b) \sin ^2(e+f x)+a+b}{\sqrt {1-\sin ^2(e+f x)} \sqrt {-a \sin ^2(e+f x)+a+b}}d\sin (e+f x)\right )+\frac {b \sin (e+f x) \sqrt {-a \sin ^2(e+f x)+a+b}}{3 \left (1-\sin ^2(e+f x)\right )^{3/2}}\right )}{f \sqrt {-a \sin ^2(e+f x)+a+b}}\) |
\(\Big \downarrow \) 399 |
\(\displaystyle \frac {\sqrt {1-\sin ^2(e+f x)} \sqrt {\frac {-a \sin ^2(e+f x)+a+b}{1-\sin ^2(e+f x)}} \left (\frac {1}{3} \left (\frac {2 (2 a+b) \sin (e+f x) \sqrt {-a \sin ^2(e+f x)+a+b}}{\sqrt {1-\sin ^2(e+f x)}}-a \left (\frac {2 (2 a+b) \int \frac {\sqrt {-a \sin ^2(e+f x)+a+b}}{\sqrt {1-\sin ^2(e+f x)}}d\sin (e+f x)}{a}-\frac {(a+b) (3 a+2 b) \int \frac {1}{\sqrt {1-\sin ^2(e+f x)} \sqrt {-a \sin ^2(e+f x)+a+b}}d\sin (e+f x)}{a}\right )\right )+\frac {b \sin (e+f x) \sqrt {-a \sin ^2(e+f x)+a+b}}{3 \left (1-\sin ^2(e+f x)\right )^{3/2}}\right )}{f \sqrt {-a \sin ^2(e+f x)+a+b}}\) |
\(\Big \downarrow \) 323 |
\(\displaystyle \frac {\sqrt {1-\sin ^2(e+f x)} \sqrt {\frac {-a \sin ^2(e+f x)+a+b}{1-\sin ^2(e+f x)}} \left (\frac {1}{3} \left (\frac {2 (2 a+b) \sin (e+f x) \sqrt {-a \sin ^2(e+f x)+a+b}}{\sqrt {1-\sin ^2(e+f x)}}-a \left (\frac {2 (2 a+b) \int \frac {\sqrt {-a \sin ^2(e+f x)+a+b}}{\sqrt {1-\sin ^2(e+f x)}}d\sin (e+f x)}{a}-\frac {(a+b) (3 a+2 b) \sqrt {1-\frac {a \sin ^2(e+f x)}{a+b}} \int \frac {1}{\sqrt {1-\sin ^2(e+f x)} \sqrt {1-\frac {a \sin ^2(e+f x)}{a+b}}}d\sin (e+f x)}{a \sqrt {-a \sin ^2(e+f x)+a+b}}\right )\right )+\frac {b \sin (e+f x) \sqrt {-a \sin ^2(e+f x)+a+b}}{3 \left (1-\sin ^2(e+f x)\right )^{3/2}}\right )}{f \sqrt {-a \sin ^2(e+f x)+a+b}}\) |
\(\Big \downarrow \) 321 |
\(\displaystyle \frac {\sqrt {1-\sin ^2(e+f x)} \sqrt {\frac {-a \sin ^2(e+f x)+a+b}{1-\sin ^2(e+f x)}} \left (\frac {1}{3} \left (\frac {2 (2 a+b) \sin (e+f x) \sqrt {-a \sin ^2(e+f x)+a+b}}{\sqrt {1-\sin ^2(e+f x)}}-a \left (\frac {2 (2 a+b) \int \frac {\sqrt {-a \sin ^2(e+f x)+a+b}}{\sqrt {1-\sin ^2(e+f x)}}d\sin (e+f x)}{a}-\frac {(a+b) (3 a+2 b) \sqrt {1-\frac {a \sin ^2(e+f x)}{a+b}} \operatorname {EllipticF}\left (\arcsin (\sin (e+f x)),\frac {a}{a+b}\right )}{a \sqrt {-a \sin ^2(e+f x)+a+b}}\right )\right )+\frac {b \sin (e+f x) \sqrt {-a \sin ^2(e+f x)+a+b}}{3 \left (1-\sin ^2(e+f x)\right )^{3/2}}\right )}{f \sqrt {-a \sin ^2(e+f x)+a+b}}\) |
\(\Big \downarrow \) 330 |
\(\displaystyle \frac {\sqrt {1-\sin ^2(e+f x)} \sqrt {\frac {-a \sin ^2(e+f x)+a+b}{1-\sin ^2(e+f x)}} \left (\frac {1}{3} \left (\frac {2 (2 a+b) \sin (e+f x) \sqrt {-a \sin ^2(e+f x)+a+b}}{\sqrt {1-\sin ^2(e+f x)}}-a \left (\frac {2 (2 a+b) \sqrt {-a \sin ^2(e+f x)+a+b} \int \frac {\sqrt {1-\frac {a \sin ^2(e+f x)}{a+b}}}{\sqrt {1-\sin ^2(e+f x)}}d\sin (e+f x)}{a \sqrt {1-\frac {a \sin ^2(e+f x)}{a+b}}}-\frac {(a+b) (3 a+2 b) \sqrt {1-\frac {a \sin ^2(e+f x)}{a+b}} \operatorname {EllipticF}\left (\arcsin (\sin (e+f x)),\frac {a}{a+b}\right )}{a \sqrt {-a \sin ^2(e+f x)+a+b}}\right )\right )+\frac {b \sin (e+f x) \sqrt {-a \sin ^2(e+f x)+a+b}}{3 \left (1-\sin ^2(e+f x)\right )^{3/2}}\right )}{f \sqrt {-a \sin ^2(e+f x)+a+b}}\) |
\(\Big \downarrow \) 327 |
\(\displaystyle \frac {\sqrt {1-\sin ^2(e+f x)} \sqrt {\frac {-a \sin ^2(e+f x)+a+b}{1-\sin ^2(e+f x)}} \left (\frac {1}{3} \left (\frac {2 (2 a+b) \sin (e+f x) \sqrt {-a \sin ^2(e+f x)+a+b}}{\sqrt {1-\sin ^2(e+f x)}}-a \left (\frac {2 (2 a+b) \sqrt {-a \sin ^2(e+f x)+a+b} E\left (\arcsin (\sin (e+f x))\left |\frac {a}{a+b}\right .\right )}{a \sqrt {1-\frac {a \sin ^2(e+f x)}{a+b}}}-\frac {(a+b) (3 a+2 b) \sqrt {1-\frac {a \sin ^2(e+f x)}{a+b}} \operatorname {EllipticF}\left (\arcsin (\sin (e+f x)),\frac {a}{a+b}\right )}{a \sqrt {-a \sin ^2(e+f x)+a+b}}\right )\right )+\frac {b \sin (e+f x) \sqrt {-a \sin ^2(e+f x)+a+b}}{3 \left (1-\sin ^2(e+f x)\right )^{3/2}}\right )}{f \sqrt {-a \sin ^2(e+f x)+a+b}}\) |
Input:
Int[Sec[e + f*x]*(a + b*Sec[e + f*x]^2)^(3/2),x]
Output:
(Sqrt[1 - Sin[e + f*x]^2]*Sqrt[(a + b - a*Sin[e + f*x]^2)/(1 - Sin[e + f*x ]^2)]*((b*Sin[e + f*x]*Sqrt[a + b - a*Sin[e + f*x]^2])/(3*(1 - Sin[e + f*x ]^2)^(3/2)) + ((2*(2*a + b)*Sin[e + f*x]*Sqrt[a + b - a*Sin[e + f*x]^2])/S qrt[1 - Sin[e + f*x]^2] - a*((2*(2*a + b)*EllipticE[ArcSin[Sin[e + f*x]], a/(a + b)]*Sqrt[a + b - a*Sin[e + f*x]^2])/(a*Sqrt[1 - (a*Sin[e + f*x]^2)/ (a + b)]) - ((a + b)*(3*a + 2*b)*EllipticF[ArcSin[Sin[e + f*x]], a/(a + b) ]*Sqrt[1 - (a*Sin[e + f*x]^2)/(a + b)])/(a*Sqrt[a + b - a*Sin[e + f*x]^2]) ))/3))/(f*Sqrt[a + b - a*Sin[e + f*x]^2])
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)^(p_)*((c_) + (d_.)*(x_)^2)^(q_), x_Symbol] :> Sim p[(a*d - c*b)*x*(a + b*x^2)^(p + 1)*((c + d*x^2)^(q - 1)/(2*a*b*(p + 1))), x] - Simp[1/(2*a*b*(p + 1)) Int[(a + b*x^2)^(p + 1)*(c + d*x^2)^(q - 2)*S imp[c*(a*d - c*b*(2*p + 3)) + d*(a*d*(2*(q - 1) + 1) - b*c*(2*(p + q) + 1)) *x^2, x], x], x] /; FreeQ[{a, b, c, d}, x] && NeQ[b*c - a*d, 0] && LtQ[p, - 1] && GtQ[q, 1] && IntBinomialQ[a, b, c, d, 2, p, q, x]
Int[1/(Sqrt[(a_) + (b_.)*(x_)^2]*Sqrt[(c_) + (d_.)*(x_)^2]), x_Symbol] :> S imp[(1/(Sqrt[a]*Sqrt[c]*Rt[-d/c, 2]))*EllipticF[ArcSin[Rt[-d/c, 2]*x], b*(c /(a*d))], x] /; FreeQ[{a, b, c, d}, x] && NegQ[d/c] && GtQ[c, 0] && GtQ[a, 0] && !(NegQ[b/a] && SimplerSqrtQ[-b/a, -d/c])
Int[1/(Sqrt[(a_) + (b_.)*(x_)^2]*Sqrt[(c_) + (d_.)*(x_)^2]), x_Symbol] :> S imp[Sqrt[1 + (d/c)*x^2]/Sqrt[c + d*x^2] Int[1/(Sqrt[a + b*x^2]*Sqrt[1 + ( d/c)*x^2]), x], x] /; FreeQ[{a, b, c, d}, x] && !GtQ[c, 0]
Int[Sqrt[(a_) + (b_.)*(x_)^2]/Sqrt[(c_) + (d_.)*(x_)^2], x_Symbol] :> Simp[ (Sqrt[a]/(Sqrt[c]*Rt[-d/c, 2]))*EllipticE[ArcSin[Rt[-d/c, 2]*x], b*(c/(a*d) )], x] /; FreeQ[{a, b, c, d}, x] && NegQ[d/c] && GtQ[c, 0] && GtQ[a, 0]
Int[Sqrt[(a_) + (b_.)*(x_)^2]/Sqrt[(c_) + (d_.)*(x_)^2], x_Symbol] :> Simp[ Sqrt[a + b*x^2]/Sqrt[1 + (b/a)*x^2] Int[Sqrt[1 + (b/a)*x^2]/Sqrt[c + d*x^ 2], x], x] /; FreeQ[{a, b, c, d}, x] && NegQ[d/c] && GtQ[c, 0] && !GtQ[a, 0]
Int[((e_) + (f_.)*(x_)^2)/(Sqrt[(a_) + (b_.)*(x_)^2]*Sqrt[(c_) + (d_.)*(x_) ^2]), x_Symbol] :> Simp[f/b Int[Sqrt[a + b*x^2]/Sqrt[c + d*x^2], x], x] + Simp[(b*e - a*f)/b Int[1/(Sqrt[a + b*x^2]*Sqrt[c + d*x^2]), x], x] /; Fr eeQ[{a, b, c, d, e, f}, x] && !((PosQ[b/a] && PosQ[d/c]) || (NegQ[b/a] && (PosQ[d/c] || (GtQ[a, 0] && ( !GtQ[c, 0] || SimplerSqrtQ[-b/a, -d/c])))))
Int[((a_) + (b_.)*(x_)^2)^(p_)*((c_) + (d_.)*(x_)^2)^(q_.)*((e_) + (f_.)*(x _)^2), x_Symbol] :> Simp[(-(b*e - a*f))*x*(a + b*x^2)^(p + 1)*((c + d*x^2)^ (q + 1)/(a*2*(b*c - a*d)*(p + 1))), x] + Simp[1/(a*2*(b*c - a*d)*(p + 1)) Int[(a + b*x^2)^(p + 1)*(c + d*x^2)^q*Simp[c*(b*e - a*f) + e*2*(b*c - a*d) *(p + 1) + d*(b*e - a*f)*(2*(p + q + 2) + 1)*x^2, x], x], x] /; FreeQ[{a, b , c, d, e, f, q}, x] && LtQ[p, -1]
Int[(u_.)*((a_) + (b_.)/((c_) + (d_.)*(x_)^(n_)))^(p_), x_Symbol] :> Int[u* ((b + a*c + a*d*x^n)/(c + d*x^n))^p, x] /; FreeQ[{a, b, c, d, n, p}, x]
Int[(u_.)*((e_.)*((a_.) + (b_.)*(x_)^(n_.))^(q_.)*((c_) + (d_.)*(x_)^(n_))^ (r_.))^(p_), x_Symbol] :> Simp[Simp[(e*(a + b*x^n)^q*(c + d*x^n)^r)^p/((a + b*x^n)^(p*q)*(c + d*x^n)^(p*r))] Int[u*(a + b*x^n)^(p*q)*(c + d*x^n)^(p* r), x], x] /; FreeQ[{a, b, c, d, e, n, p, q, r}, x]
Int[sec[(e_.) + (f_.)*(x_)]^(m_.)*((a_) + (b_.)*sec[(e_.) + (f_.)*(x_)]^(n_ ))^(p_), x_Symbol] :> With[{ff = FreeFactors[Sin[e + f*x], x]}, Simp[ff/f Subst[Int[(a + b/(1 - ff^2*x^2)^(n/2))^p/(1 - ff^2*x^2)^((m + 1)/2), x], x , Sin[e + f*x]/ff], x]] /; FreeQ[{a, b, e, f, p}, x] && IntegerQ[(m - 1)/2] && IntegerQ[n/2] && !IntegerQ[p]
Result contains complex when optimal does not.
Time = 22.91 (sec) , antiderivative size = 2743, normalized size of antiderivative = 9.33
Input:
int(sec(f*x+e)*(a+b*sec(f*x+e)^2)^(3/2),x,method=_RETURNVERBOSE)
Output:
1/3/f/(2*I*a^(1/2)*b^(1/2)-a+b)/((2*I*a^(1/2)*b^(1/2)+a-b)/(a+b))^(1/2)*(( 1/(a+b)*(I*a^(1/2)*b^(1/2)*cos(f*x+e)-I*a^(1/2)*b^(1/2)+cos(f*x+e)*a+b)/(1 +cos(f*x+e)))^(1/2)*(-1/(a+b)*(I*a^(1/2)*b^(1/2)*cos(f*x+e)-I*a^(1/2)*b^(1 /2)-cos(f*x+e)*a-b)/(1+cos(f*x+e)))^(1/2)*a^3*EllipticE(((2*I*a^(1/2)*b^(1 /2)+a-b)/(a+b))^(1/2)*(csc(f*x+e)-cot(f*x+e)),(-(4*I*a^(3/2)*b^(1/2)-4*I*a ^(1/2)*b^(3/2)-a^2+6*a*b-b^2)/(a+b)^2)^(1/2))*(4*cos(f*x+e)^5+8*cos(f*x+e) ^4+4*cos(f*x+e)^3)+(1/(a+b)*(I*a^(1/2)*b^(1/2)*cos(f*x+e)-I*a^(1/2)*b^(1/2 )+cos(f*x+e)*a+b)/(1+cos(f*x+e)))^(1/2)*(-1/(a+b)*(I*a^(1/2)*b^(1/2)*cos(f *x+e)-I*a^(1/2)*b^(1/2)-cos(f*x+e)*a-b)/(1+cos(f*x+e)))^(1/2)*a^2*b*Ellipt icE(((2*I*a^(1/2)*b^(1/2)+a-b)/(a+b))^(1/2)*(csc(f*x+e)-cot(f*x+e)),(-(4*I *a^(3/2)*b^(1/2)-4*I*a^(1/2)*b^(3/2)-a^2+6*a*b-b^2)/(a+b)^2)^(1/2))*(10*co s(f*x+e)^5+20*cos(f*x+e)^4+10*cos(f*x+e)^3)+(1/(a+b)*(I*a^(1/2)*b^(1/2)*co s(f*x+e)-I*a^(1/2)*b^(1/2)+cos(f*x+e)*a+b)/(1+cos(f*x+e)))^(1/2)*(-1/(a+b) *(I*a^(1/2)*b^(1/2)*cos(f*x+e)-I*a^(1/2)*b^(1/2)-cos(f*x+e)*a-b)/(1+cos(f* x+e)))^(1/2)*a*b^2*EllipticE(((2*I*a^(1/2)*b^(1/2)+a-b)/(a+b))^(1/2)*(csc( f*x+e)-cot(f*x+e)),(-(4*I*a^(3/2)*b^(1/2)-4*I*a^(1/2)*b^(3/2)-a^2+6*a*b-b^ 2)/(a+b)^2)^(1/2))*(8*cos(f*x+e)^5+16*cos(f*x+e)^4+8*cos(f*x+e)^3)+(1/(a+b )*(I*a^(1/2)*b^(1/2)*cos(f*x+e)-I*a^(1/2)*b^(1/2)+cos(f*x+e)*a+b)/(1+cos(f *x+e)))^(1/2)*(-1/(a+b)*(I*a^(1/2)*b^(1/2)*cos(f*x+e)-I*a^(1/2)*b^(1/2)-co s(f*x+e)*a-b)/(1+cos(f*x+e)))^(1/2)*b^3*EllipticE(((2*I*a^(1/2)*b^(1/2)...
Result contains complex when optimal does not.
Time = 0.14 (sec) , antiderivative size = 798, normalized size of antiderivative = 2.71 \[ \int \sec (e+f x) \left (a+b \sec ^2(e+f x)\right )^{3/2} \, dx =\text {Too large to display} \] Input:
integrate(sec(f*x+e)*(a+b*sec(f*x+e)^2)^(3/2),x, algorithm="fricas")
Output:
1/3*((2*(2*I*a^2 + I*a*b)*sqrt(a)*sqrt((a*b + b^2)/a^2)*cos(f*x + e)^2 - ( 2*I*a^2 + 5*I*a*b + 2*I*b^2)*sqrt(a)*cos(f*x + e)^2)*sqrt((2*a*sqrt((a*b + b^2)/a^2) - a - 2*b)/a)*elliptic_e(arcsin(sqrt((2*a*sqrt((a*b + b^2)/a^2) - a - 2*b)/a)*(cos(f*x + e) + I*sin(f*x + e))), (a^2 + 8*a*b + 8*b^2 + 4* (a^2 + 2*a*b)*sqrt((a*b + b^2)/a^2))/a^2) + (2*(-2*I*a^2 - I*a*b)*sqrt(a)* sqrt((a*b + b^2)/a^2)*cos(f*x + e)^2 - (-2*I*a^2 - 5*I*a*b - 2*I*b^2)*sqrt (a)*cos(f*x + e)^2)*sqrt((2*a*sqrt((a*b + b^2)/a^2) - a - 2*b)/a)*elliptic _e(arcsin(sqrt((2*a*sqrt((a*b + b^2)/a^2) - a - 2*b)/a)*(cos(f*x + e) - I* sin(f*x + e))), (a^2 + 8*a*b + 8*b^2 + 4*(a^2 + 2*a*b)*sqrt((a*b + b^2)/a^ 2))/a^2) + (2*(-3*I*a^2 - I*a*b)*sqrt(a)*sqrt((a*b + b^2)/a^2)*cos(f*x + e )^2 - (-I*a^2 - 3*I*a*b - 2*I*b^2)*sqrt(a)*cos(f*x + e)^2)*sqrt((2*a*sqrt( (a*b + b^2)/a^2) - a - 2*b)/a)*elliptic_f(arcsin(sqrt((2*a*sqrt((a*b + b^2 )/a^2) - a - 2*b)/a)*(cos(f*x + e) + I*sin(f*x + e))), (a^2 + 8*a*b + 8*b^ 2 + 4*(a^2 + 2*a*b)*sqrt((a*b + b^2)/a^2))/a^2) + (2*(3*I*a^2 + I*a*b)*sqr t(a)*sqrt((a*b + b^2)/a^2)*cos(f*x + e)^2 - (I*a^2 + 3*I*a*b + 2*I*b^2)*sq rt(a)*cos(f*x + e)^2)*sqrt((2*a*sqrt((a*b + b^2)/a^2) - a - 2*b)/a)*ellipt ic_f(arcsin(sqrt((2*a*sqrt((a*b + b^2)/a^2) - a - 2*b)/a)*(cos(f*x + e) - I*sin(f*x + e))), (a^2 + 8*a*b + 8*b^2 + 4*(a^2 + 2*a*b)*sqrt((a*b + b^2)/ a^2))/a^2) + (2*(2*a^2 + a*b)*cos(f*x + e)^2 + a*b)*sqrt((a*cos(f*x + e)^2 + b)/cos(f*x + e)^2)*sin(f*x + e))/(a*f*cos(f*x + e)^2)
\[ \int \sec (e+f x) \left (a+b \sec ^2(e+f x)\right )^{3/2} \, dx=\int \left (a + b \sec ^{2}{\left (e + f x \right )}\right )^{\frac {3}{2}} \sec {\left (e + f x \right )}\, dx \] Input:
integrate(sec(f*x+e)*(a+b*sec(f*x+e)**2)**(3/2),x)
Output:
Integral((a + b*sec(e + f*x)**2)**(3/2)*sec(e + f*x), x)
\[ \int \sec (e+f x) \left (a+b \sec ^2(e+f x)\right )^{3/2} \, dx=\int { {\left (b \sec \left (f x + e\right )^{2} + a\right )}^{\frac {3}{2}} \sec \left (f x + e\right ) \,d x } \] Input:
integrate(sec(f*x+e)*(a+b*sec(f*x+e)^2)^(3/2),x, algorithm="maxima")
Output:
integrate((b*sec(f*x + e)^2 + a)^(3/2)*sec(f*x + e), x)
\[ \int \sec (e+f x) \left (a+b \sec ^2(e+f x)\right )^{3/2} \, dx=\int { {\left (b \sec \left (f x + e\right )^{2} + a\right )}^{\frac {3}{2}} \sec \left (f x + e\right ) \,d x } \] Input:
integrate(sec(f*x+e)*(a+b*sec(f*x+e)^2)^(3/2),x, algorithm="giac")
Output:
integrate((b*sec(f*x + e)^2 + a)^(3/2)*sec(f*x + e), x)
Timed out. \[ \int \sec (e+f x) \left (a+b \sec ^2(e+f x)\right )^{3/2} \, dx=\int \frac {{\left (a+\frac {b}{{\cos \left (e+f\,x\right )}^2}\right )}^{3/2}}{\cos \left (e+f\,x\right )} \,d x \] Input:
int((a + b/cos(e + f*x)^2)^(3/2)/cos(e + f*x),x)
Output:
int((a + b/cos(e + f*x)^2)^(3/2)/cos(e + f*x), x)
\[ \int \sec (e+f x) \left (a+b \sec ^2(e+f x)\right )^{3/2} \, dx=\left (\int \sqrt {\sec \left (f x +e \right )^{2} b +a}\, \sec \left (f x +e \right )^{3}d x \right ) b +\left (\int \sqrt {\sec \left (f x +e \right )^{2} b +a}\, \sec \left (f x +e \right )d x \right ) a \] Input:
int(sec(f*x+e)*(a+b*sec(f*x+e)^2)^(3/2),x)
Output:
int(sqrt(sec(e + f*x)**2*b + a)*sec(e + f*x)**3,x)*b + int(sqrt(sec(e + f* x)**2*b + a)*sec(e + f*x),x)*a