\(\int \frac {\sqrt {d \sec (e+f x)}}{(a+b \tan (e+f x))^3} \, dx\) [628]

Optimal result

Integrand size = 25, antiderivative size = 515 \[ \int \frac {\sqrt {d \sec (e+f x)}}{(a+b \tan (e+f x))^3} \, dx=-\frac {3 \sqrt {b} \left (5 a^2-2 b^2\right ) \arctan \left (\frac {\sqrt {b} \sqrt [4]{\sec ^2(e+f x)}}{\sqrt [4]{a^2+b^2}}\right ) \sqrt {d \sec (e+f x)}}{8 \left (a^2+b^2\right )^{11/4} f \sqrt [4]{\sec ^2(e+f x)}}-\frac {3 \sqrt {b} \left (5 a^2-2 b^2\right ) \text {arctanh}\left (\frac {\sqrt {b} \sqrt [4]{\sec ^2(e+f x)}}{\sqrt [4]{a^2+b^2}}\right ) \sqrt {d \sec (e+f x)}}{8 \left (a^2+b^2\right )^{11/4} f \sqrt [4]{\sec ^2(e+f x)}}-\frac {7 a \operatorname {EllipticF}\left (\frac {1}{2} \arctan (\tan (e+f x)),2\right ) \sqrt {d \sec (e+f x)}}{4 \left (a^2+b^2\right )^2 f \sqrt [4]{\sec ^2(e+f x)}}+\frac {3 a \left (5 a^2-2 b^2\right ) \cot (e+f x) \operatorname {EllipticPi}\left (-\frac {b}{\sqrt {a^2+b^2}},\arcsin \left (\sqrt [4]{\sec ^2(e+f x)}\right ),-1\right ) \sqrt {d \sec (e+f x)} \sqrt {-\tan ^2(e+f x)}}{8 \left (a^2+b^2\right )^3 f \sqrt [4]{\sec ^2(e+f x)}}+\frac {3 a \left (5 a^2-2 b^2\right ) \cot (e+f x) \operatorname {EllipticPi}\left (\frac {b}{\sqrt {a^2+b^2}},\arcsin \left (\sqrt [4]{\sec ^2(e+f x)}\right ),-1\right ) \sqrt {d \sec (e+f x)} \sqrt {-\tan ^2(e+f x)}}{8 \left (a^2+b^2\right )^3 f \sqrt [4]{\sec ^2(e+f x)}}-\frac {b \sqrt {d \sec (e+f x)}}{2 \left (a^2+b^2\right ) f (a+b \tan (e+f x))^2}-\frac {7 a b \sqrt {d \sec (e+f x)}}{4 \left (a^2+b^2\right )^2 f (a+b \tan (e+f x))} \] Output:

-3/8*b^(1/2)*(5*a^2-2*b^2)*arctan(b^(1/2)*(sec(f*x+e)^2)^(1/4)/(a^2+b^2)^( 
1/4))*(d*sec(f*x+e))^(1/2)/(a^2+b^2)^(11/4)/f/(sec(f*x+e)^2)^(1/4)-3/8*b^( 
1/2)*(5*a^2-2*b^2)*arctanh(b^(1/2)*(sec(f*x+e)^2)^(1/4)/(a^2+b^2)^(1/4))*( 
d*sec(f*x+e))^(1/2)/(a^2+b^2)^(11/4)/f/(sec(f*x+e)^2)^(1/4)-7/4*a*InverseJ 
acobiAM(1/2*arctan(tan(f*x+e)),2^(1/2))*(d*sec(f*x+e))^(1/2)/(a^2+b^2)^2/f 
/(sec(f*x+e)^2)^(1/4)+3/8*a*(5*a^2-2*b^2)*cot(f*x+e)*EllipticPi((sec(f*x+e 
)^2)^(1/4),-b/(a^2+b^2)^(1/2),I)*(d*sec(f*x+e))^(1/2)*(-tan(f*x+e)^2)^(1/2 
)/(a^2+b^2)^3/f/(sec(f*x+e)^2)^(1/4)+3/8*a*(5*a^2-2*b^2)*cot(f*x+e)*Ellipt 
icPi((sec(f*x+e)^2)^(1/4),b/(a^2+b^2)^(1/2),I)*(d*sec(f*x+e))^(1/2)*(-tan( 
f*x+e)^2)^(1/2)/(a^2+b^2)^3/f/(sec(f*x+e)^2)^(1/4)-1/2*b*(d*sec(f*x+e))^(1 
/2)/(a^2+b^2)/f/(a+b*tan(f*x+e))^2-7/4*a*b*(d*sec(f*x+e))^(1/2)/(a^2+b^2)^ 
2/f/(a+b*tan(f*x+e))
 

Mathematica [C] (warning: unable to verify)

Result contains higher order function than in optimal. Order 5 vs. order 4 in optimal.

Time = 5.32 (sec) , antiderivative size = 369, normalized size of antiderivative = 0.72 \[ \int \frac {\sqrt {d \sec (e+f x)}}{(a+b \tan (e+f x))^3} \, dx=\frac {(d \sec (e+f x))^{3/2} (a \cos (e+f x)+b \sin (e+f x))^3 \left (-\frac {2 b \sec ^2(e+f x) \left (9 a^2+2 b^2+7 a b \tan (e+f x)\right )}{(a-i b)^2 (a+i b)^2 (a+b \tan (e+f x))^2}+\frac {\sec ^2(e+f x)^{3/4} \left (-7 a \left (a^2+b^2\right ) \operatorname {Hypergeometric2F1}\left (\frac {1}{2},\frac {3}{4},\frac {3}{2},-\tan ^2(e+f x)\right ) \tan (e+f x)+3 \left (5 a^2-2 b^2\right ) \left (-\sqrt {b} \sqrt [4]{a^2+b^2} \left (\arctan \left (\frac {\sqrt {b} \sqrt [4]{\sec ^2(e+f x)}}{\sqrt [4]{a^2+b^2}}\right )+\text {arctanh}\left (\frac {\sqrt {b} \sqrt [4]{\sec ^2(e+f x)}}{\sqrt [4]{a^2+b^2}}\right )\right )+a \cot (e+f x) \operatorname {EllipticPi}\left (-\frac {b}{\sqrt {a^2+b^2}},\arcsin \left (\sqrt [4]{\sec ^2(e+f x)}\right ),-1\right ) \sqrt {-\tan ^2(e+f x)}+a \cot (e+f x) \operatorname {EllipticPi}\left (\frac {b}{\sqrt {a^2+b^2}},\arcsin \left (\sqrt [4]{\sec ^2(e+f x)}\right ),-1\right ) \sqrt {-\tan ^2(e+f x)}\right )\right )}{\left (a^2+b^2\right )^3}\right )}{8 d f (a+b \tan (e+f x))^3} \] Input:

Integrate[Sqrt[d*Sec[e + f*x]]/(a + b*Tan[e + f*x])^3,x]
 

Output:

((d*Sec[e + f*x])^(3/2)*(a*Cos[e + f*x] + b*Sin[e + f*x])^3*((-2*b*Sec[e + 
 f*x]^2*(9*a^2 + 2*b^2 + 7*a*b*Tan[e + f*x]))/((a - I*b)^2*(a + I*b)^2*(a 
+ b*Tan[e + f*x])^2) + ((Sec[e + f*x]^2)^(3/4)*(-7*a*(a^2 + b^2)*Hypergeom 
etric2F1[1/2, 3/4, 3/2, -Tan[e + f*x]^2]*Tan[e + f*x] + 3*(5*a^2 - 2*b^2)* 
(-(Sqrt[b]*(a^2 + b^2)^(1/4)*(ArcTan[(Sqrt[b]*(Sec[e + f*x]^2)^(1/4))/(a^2 
 + b^2)^(1/4)] + ArcTanh[(Sqrt[b]*(Sec[e + f*x]^2)^(1/4))/(a^2 + b^2)^(1/4 
)])) + a*Cot[e + f*x]*EllipticPi[-(b/Sqrt[a^2 + b^2]), ArcSin[(Sec[e + f*x 
]^2)^(1/4)], -1]*Sqrt[-Tan[e + f*x]^2] + a*Cot[e + f*x]*EllipticPi[b/Sqrt[ 
a^2 + b^2], ArcSin[(Sec[e + f*x]^2)^(1/4)], -1]*Sqrt[-Tan[e + f*x]^2])))/( 
a^2 + b^2)^3))/(8*d*f*(a + b*Tan[e + f*x])^3)
 

Rubi [A] (warning: unable to verify)

Time = 0.81 (sec) , antiderivative size = 392, normalized size of antiderivative = 0.76, number of steps used = 22, number of rules used = 21, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.840, Rules used = {3042, 3994, 498, 27, 688, 27, 25, 719, 229, 504, 312, 118, 25, 353, 73, 756, 218, 221, 925, 1537, 412}

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.

\(\displaystyle \int \frac {\sqrt {d \sec (e+f x)}}{(a+b \tan (e+f x))^3} \, dx\)

\(\Big \downarrow \) 3042

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

\(\Big \downarrow \) 3994

\(\displaystyle \frac {\sqrt {d \sec (e+f x)} \int \frac {1}{(a+b \tan (e+f x))^3 \left (\tan ^2(e+f x)+1\right )^{3/4}}d(b \tan (e+f x))}{b f \sqrt [4]{\sec ^2(e+f x)}}\)

\(\Big \downarrow \) 498

\(\displaystyle \frac {\sqrt {d \sec (e+f x)} \left (-\frac {\int -\frac {4 a-3 b \tan (e+f x)}{2 (a+b \tan (e+f x))^2 \left (\tan ^2(e+f x)+1\right )^{3/4}}d(b \tan (e+f x))}{2 \left (a^2+b^2\right )}-\frac {b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{2 \left (a^2+b^2\right ) (a+b \tan (e+f x))^2}\right )}{b f \sqrt [4]{\sec ^2(e+f x)}}\)

\(\Big \downarrow \) 27

\(\displaystyle \frac {\sqrt {d \sec (e+f x)} \left (\frac {\int \frac {4 a-3 b \tan (e+f x)}{(a+b \tan (e+f x))^2 \left (\tan ^2(e+f x)+1\right )^{3/4}}d(b \tan (e+f x))}{4 \left (a^2+b^2\right )}-\frac {b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{2 \left (a^2+b^2\right ) (a+b \tan (e+f x))^2}\right )}{b f \sqrt [4]{\sec ^2(e+f x)}}\)

\(\Big \downarrow \) 688

\(\displaystyle \frac {\sqrt {d \sec (e+f x)} \left (\frac {-\frac {b^2 \int \frac {\left (6-\frac {8 a^2}{b^2}\right ) b^2+7 a \tan (e+f x) b}{2 b^2 (a+b \tan (e+f x)) \left (\tan ^2(e+f x)+1\right )^{3/4}}d(b \tan (e+f x))}{a^2+b^2}-\frac {7 a b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{\left (a^2+b^2\right ) (a+b \tan (e+f x))}}{4 \left (a^2+b^2\right )}-\frac {b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{2 \left (a^2+b^2\right ) (a+b \tan (e+f x))^2}\right )}{b f \sqrt [4]{\sec ^2(e+f x)}}\)

\(\Big \downarrow \) 27

\(\displaystyle \frac {\sqrt {d \sec (e+f x)} \left (\frac {-\frac {\int -\frac {2 \left (4 a^2-3 b^2\right )-7 a b \tan (e+f x)}{(a+b \tan (e+f x)) \left (\tan ^2(e+f x)+1\right )^{3/4}}d(b \tan (e+f x))}{2 \left (a^2+b^2\right )}-\frac {7 a b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{\left (a^2+b^2\right ) (a+b \tan (e+f x))}}{4 \left (a^2+b^2\right )}-\frac {b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{2 \left (a^2+b^2\right ) (a+b \tan (e+f x))^2}\right )}{b f \sqrt [4]{\sec ^2(e+f x)}}\)

\(\Big \downarrow \) 25

\(\displaystyle \frac {\sqrt {d \sec (e+f x)} \left (\frac {\frac {\int \frac {2 \left (4 a^2-3 b^2\right )-7 a b \tan (e+f x)}{(a+b \tan (e+f x)) \left (\tan ^2(e+f x)+1\right )^{3/4}}d(b \tan (e+f x))}{2 \left (a^2+b^2\right )}-\frac {7 a b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{\left (a^2+b^2\right ) (a+b \tan (e+f x))}}{4 \left (a^2+b^2\right )}-\frac {b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{2 \left (a^2+b^2\right ) (a+b \tan (e+f x))^2}\right )}{b f \sqrt [4]{\sec ^2(e+f x)}}\)

\(\Big \downarrow \) 719

\(\displaystyle \frac {\sqrt {d \sec (e+f x)} \left (\frac {\frac {3 \left (5 a^2-2 b^2\right ) \int \frac {1}{(a+b \tan (e+f x)) \left (\tan ^2(e+f x)+1\right )^{3/4}}d(b \tan (e+f x))-7 a \int \frac {1}{\left (\tan ^2(e+f x)+1\right )^{3/4}}d(b \tan (e+f x))}{2 \left (a^2+b^2\right )}-\frac {7 a b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{\left (a^2+b^2\right ) (a+b \tan (e+f x))}}{4 \left (a^2+b^2\right )}-\frac {b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{2 \left (a^2+b^2\right ) (a+b \tan (e+f x))^2}\right )}{b f \sqrt [4]{\sec ^2(e+f x)}}\)

\(\Big \downarrow \) 229

\(\displaystyle \frac {\sqrt {d \sec (e+f x)} \left (\frac {\frac {3 \left (5 a^2-2 b^2\right ) \int \frac {1}{(a+b \tan (e+f x)) \left (\tan ^2(e+f x)+1\right )^{3/4}}d(b \tan (e+f x))-14 a b \operatorname {EllipticF}\left (\frac {1}{2} \arctan (\tan (e+f x)),2\right )}{2 \left (a^2+b^2\right )}-\frac {7 a b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{\left (a^2+b^2\right ) (a+b \tan (e+f x))}}{4 \left (a^2+b^2\right )}-\frac {b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{2 \left (a^2+b^2\right ) (a+b \tan (e+f x))^2}\right )}{b f \sqrt [4]{\sec ^2(e+f x)}}\)

\(\Big \downarrow \) 504

\(\displaystyle \frac {\sqrt {d \sec (e+f x)} \left (\frac {\frac {3 \left (5 a^2-2 b^2\right ) \left (a \int \frac {1}{\left (\tan ^2(e+f x)+1\right )^{3/4} \left (a^2-b^2 \tan ^2(e+f x)\right )}d(b \tan (e+f x))-\int \frac {b \tan (e+f x)}{\left (\tan ^2(e+f x)+1\right )^{3/4} \left (a^2-b^2 \tan ^2(e+f x)\right )}d(b \tan (e+f x))\right )-14 a b \operatorname {EllipticF}\left (\frac {1}{2} \arctan (\tan (e+f x)),2\right )}{2 \left (a^2+b^2\right )}-\frac {7 a b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{\left (a^2+b^2\right ) (a+b \tan (e+f x))}}{4 \left (a^2+b^2\right )}-\frac {b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{2 \left (a^2+b^2\right ) (a+b \tan (e+f x))^2}\right )}{b f \sqrt [4]{\sec ^2(e+f x)}}\)

\(\Big \downarrow \) 312

\(\displaystyle \frac {\sqrt {d \sec (e+f x)} \left (\frac {\frac {3 \left (5 a^2-2 b^2\right ) \left (\frac {a \sqrt {-\tan ^2(e+f x)} \cot (e+f x) \int \frac {1}{\sqrt {-\frac {\tan (e+f x)}{b}} \left (\frac {\tan (e+f x)}{b}+1\right )^{3/4} \left (a^2-b^2 \tan ^2(e+f x)\right )}d\left (b^2 \tan ^2(e+f x)\right )}{2 b}-\int \frac {b \tan (e+f x)}{\left (\tan ^2(e+f x)+1\right )^{3/4} \left (a^2-b^2 \tan ^2(e+f x)\right )}d(b \tan (e+f x))\right )-14 a b \operatorname {EllipticF}\left (\frac {1}{2} \arctan (\tan (e+f x)),2\right )}{2 \left (a^2+b^2\right )}-\frac {7 a b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{\left (a^2+b^2\right ) (a+b \tan (e+f x))}}{4 \left (a^2+b^2\right )}-\frac {b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{2 \left (a^2+b^2\right ) (a+b \tan (e+f x))^2}\right )}{b f \sqrt [4]{\sec ^2(e+f x)}}\)

\(\Big \downarrow \) 118

\(\displaystyle \frac {\sqrt {d \sec (e+f x)} \left (\frac {\frac {3 \left (5 a^2-2 b^2\right ) \left (-\int \frac {b \tan (e+f x)}{\left (\tan ^2(e+f x)+1\right )^{3/4} \left (a^2-b^2 \tan ^2(e+f x)\right )}d(b \tan (e+f x))-\frac {2 a \sqrt {-\tan ^2(e+f x)} \cot (e+f x) \int -\frac {1}{\sqrt {1-b^4 \tan ^4(e+f x)} \left (-b^4 \tan ^4(e+f x)+\frac {a^2}{b^2}+1\right )}d\sqrt [4]{\frac {\tan (e+f x)}{b}+1}}{b}\right )-14 a b \operatorname {EllipticF}\left (\frac {1}{2} \arctan (\tan (e+f x)),2\right )}{2 \left (a^2+b^2\right )}-\frac {7 a b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{\left (a^2+b^2\right ) (a+b \tan (e+f x))}}{4 \left (a^2+b^2\right )}-\frac {b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{2 \left (a^2+b^2\right ) (a+b \tan (e+f x))^2}\right )}{b f \sqrt [4]{\sec ^2(e+f x)}}\)

\(\Big \downarrow \) 25

\(\displaystyle \frac {\sqrt {d \sec (e+f x)} \left (\frac {\frac {3 \left (5 a^2-2 b^2\right ) \left (\frac {2 a \sqrt {-\tan ^2(e+f x)} \cot (e+f x) \int \frac {1}{\sqrt {1-b^4 \tan ^4(e+f x)} \left (-b^4 \tan ^4(e+f x)+\frac {a^2}{b^2}+1\right )}d\sqrt [4]{\frac {\tan (e+f x)}{b}+1}}{b}-\int \frac {b \tan (e+f x)}{\left (\tan ^2(e+f x)+1\right )^{3/4} \left (a^2-b^2 \tan ^2(e+f x)\right )}d(b \tan (e+f x))\right )-14 a b \operatorname {EllipticF}\left (\frac {1}{2} \arctan (\tan (e+f x)),2\right )}{2 \left (a^2+b^2\right )}-\frac {7 a b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{\left (a^2+b^2\right ) (a+b \tan (e+f x))}}{4 \left (a^2+b^2\right )}-\frac {b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{2 \left (a^2+b^2\right ) (a+b \tan (e+f x))^2}\right )}{b f \sqrt [4]{\sec ^2(e+f x)}}\)

\(\Big \downarrow \) 353

\(\displaystyle \frac {\sqrt {d \sec (e+f x)} \left (\frac {\frac {3 \left (5 a^2-2 b^2\right ) \left (\frac {2 a \sqrt {-\tan ^2(e+f x)} \cot (e+f x) \int \frac {1}{\sqrt {1-b^4 \tan ^4(e+f x)} \left (-b^4 \tan ^4(e+f x)+\frac {a^2}{b^2}+1\right )}d\sqrt [4]{\frac {\tan (e+f x)}{b}+1}}{b}-\frac {1}{2} \int \frac {1}{\left (\frac {\tan (e+f x)}{b}+1\right )^{3/4} \left (a^2-b^2 \tan ^2(e+f x)\right )}d\left (b^2 \tan ^2(e+f x)\right )\right )-14 a b \operatorname {EllipticF}\left (\frac {1}{2} \arctan (\tan (e+f x)),2\right )}{2 \left (a^2+b^2\right )}-\frac {7 a b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{\left (a^2+b^2\right ) (a+b \tan (e+f x))}}{4 \left (a^2+b^2\right )}-\frac {b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{2 \left (a^2+b^2\right ) (a+b \tan (e+f x))^2}\right )}{b f \sqrt [4]{\sec ^2(e+f x)}}\)

\(\Big \downarrow \) 73

\(\displaystyle \frac {\sqrt {d \sec (e+f x)} \left (\frac {\frac {3 \left (5 a^2-2 b^2\right ) \left (\frac {2 a \sqrt {-\tan ^2(e+f x)} \cot (e+f x) \int \frac {1}{\sqrt {1-b^4 \tan ^4(e+f x)} \left (-b^4 \tan ^4(e+f x)+\frac {a^2}{b^2}+1\right )}d\sqrt [4]{\frac {\tan (e+f x)}{b}+1}}{b}-2 b^2 \int \frac {1}{-\tan ^4(e+f x) b^6+b^2+a^2}d\sqrt [4]{\frac {\tan (e+f x)}{b}+1}\right )-14 a b \operatorname {EllipticF}\left (\frac {1}{2} \arctan (\tan (e+f x)),2\right )}{2 \left (a^2+b^2\right )}-\frac {7 a b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{\left (a^2+b^2\right ) (a+b \tan (e+f x))}}{4 \left (a^2+b^2\right )}-\frac {b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{2 \left (a^2+b^2\right ) (a+b \tan (e+f x))^2}\right )}{b f \sqrt [4]{\sec ^2(e+f x)}}\)

\(\Big \downarrow \) 756

\(\displaystyle \frac {\sqrt {d \sec (e+f x)} \left (\frac {\frac {3 \left (5 a^2-2 b^2\right ) \left (\frac {2 a \sqrt {-\tan ^2(e+f x)} \cot (e+f x) \int \frac {1}{\sqrt {1-b^4 \tan ^4(e+f x)} \left (-b^4 \tan ^4(e+f x)+\frac {a^2}{b^2}+1\right )}d\sqrt [4]{\frac {\tan (e+f x)}{b}+1}}{b}-2 b^2 \left (\frac {\int \frac {1}{\sqrt {a^2+b^2}-b^3 \tan ^2(e+f x)}d\sqrt [4]{\frac {\tan (e+f x)}{b}+1}}{2 \sqrt {a^2+b^2}}+\frac {\int \frac {1}{\tan ^2(e+f x) b^3+\sqrt {a^2+b^2}}d\sqrt [4]{\frac {\tan (e+f x)}{b}+1}}{2 \sqrt {a^2+b^2}}\right )\right )-14 a b \operatorname {EllipticF}\left (\frac {1}{2} \arctan (\tan (e+f x)),2\right )}{2 \left (a^2+b^2\right )}-\frac {7 a b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{\left (a^2+b^2\right ) (a+b \tan (e+f x))}}{4 \left (a^2+b^2\right )}-\frac {b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{2 \left (a^2+b^2\right ) (a+b \tan (e+f x))^2}\right )}{b f \sqrt [4]{\sec ^2(e+f x)}}\)

\(\Big \downarrow \) 218

\(\displaystyle \frac {\sqrt {d \sec (e+f x)} \left (\frac {\frac {3 \left (5 a^2-2 b^2\right ) \left (\frac {2 a \sqrt {-\tan ^2(e+f x)} \cot (e+f x) \int \frac {1}{\sqrt {1-b^4 \tan ^4(e+f x)} \left (-b^4 \tan ^4(e+f x)+\frac {a^2}{b^2}+1\right )}d\sqrt [4]{\frac {\tan (e+f x)}{b}+1}}{b}-2 b^2 \left (\frac {\int \frac {1}{\sqrt {a^2+b^2}-b^3 \tan ^2(e+f x)}d\sqrt [4]{\frac {\tan (e+f x)}{b}+1}}{2 \sqrt {a^2+b^2}}+\frac {\arctan \left (\frac {b^{3/2} \tan (e+f x)}{\sqrt [4]{a^2+b^2}}\right )}{2 \sqrt {b} \left (a^2+b^2\right )^{3/4}}\right )\right )-14 a b \operatorname {EllipticF}\left (\frac {1}{2} \arctan (\tan (e+f x)),2\right )}{2 \left (a^2+b^2\right )}-\frac {7 a b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{\left (a^2+b^2\right ) (a+b \tan (e+f x))}}{4 \left (a^2+b^2\right )}-\frac {b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{2 \left (a^2+b^2\right ) (a+b \tan (e+f x))^2}\right )}{b f \sqrt [4]{\sec ^2(e+f x)}}\)

\(\Big \downarrow \) 221

\(\displaystyle \frac {\sqrt {d \sec (e+f x)} \left (\frac {\frac {3 \left (5 a^2-2 b^2\right ) \left (\frac {2 a \sqrt {-\tan ^2(e+f x)} \cot (e+f x) \int \frac {1}{\sqrt {1-b^4 \tan ^4(e+f x)} \left (-b^4 \tan ^4(e+f x)+\frac {a^2}{b^2}+1\right )}d\sqrt [4]{\frac {\tan (e+f x)}{b}+1}}{b}-2 b^2 \left (\frac {\arctan \left (\frac {b^{3/2} \tan (e+f x)}{\sqrt [4]{a^2+b^2}}\right )}{2 \sqrt {b} \left (a^2+b^2\right )^{3/4}}+\frac {\text {arctanh}\left (\frac {b^{3/2} \tan (e+f x)}{\sqrt [4]{a^2+b^2}}\right )}{2 \sqrt {b} \left (a^2+b^2\right )^{3/4}}\right )\right )-14 a b \operatorname {EllipticF}\left (\frac {1}{2} \arctan (\tan (e+f x)),2\right )}{2 \left (a^2+b^2\right )}-\frac {7 a b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{\left (a^2+b^2\right ) (a+b \tan (e+f x))}}{4 \left (a^2+b^2\right )}-\frac {b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{2 \left (a^2+b^2\right ) (a+b \tan (e+f x))^2}\right )}{b f \sqrt [4]{\sec ^2(e+f x)}}\)

\(\Big \downarrow \) 925

\(\displaystyle \frac {\sqrt {d \sec (e+f x)} \left (\frac {\frac {3 \left (5 a^2-2 b^2\right ) \left (-\frac {2 a \sqrt {-\tan ^2(e+f x)} \cot (e+f x) \left (-\frac {b^2 \int \frac {1}{\left (1-\frac {b^3 \tan ^2(e+f x)}{\sqrt {a^2+b^2}}\right ) \sqrt {1-b^4 \tan ^4(e+f x)}}d\sqrt [4]{\frac {\tan (e+f x)}{b}+1}}{2 \left (a^2+b^2\right )}-\frac {b^2 \int \frac {1}{\left (\frac {\tan ^2(e+f x) b^3}{\sqrt {a^2+b^2}}+1\right ) \sqrt {1-b^4 \tan ^4(e+f x)}}d\sqrt [4]{\frac {\tan (e+f x)}{b}+1}}{2 \left (a^2+b^2\right )}\right )}{b}-2 b^2 \left (\frac {\arctan \left (\frac {b^{3/2} \tan (e+f x)}{\sqrt [4]{a^2+b^2}}\right )}{2 \sqrt {b} \left (a^2+b^2\right )^{3/4}}+\frac {\text {arctanh}\left (\frac {b^{3/2} \tan (e+f x)}{\sqrt [4]{a^2+b^2}}\right )}{2 \sqrt {b} \left (a^2+b^2\right )^{3/4}}\right )\right )-14 a b \operatorname {EllipticF}\left (\frac {1}{2} \arctan (\tan (e+f x)),2\right )}{2 \left (a^2+b^2\right )}-\frac {7 a b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{\left (a^2+b^2\right ) (a+b \tan (e+f x))}}{4 \left (a^2+b^2\right )}-\frac {b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{2 \left (a^2+b^2\right ) (a+b \tan (e+f x))^2}\right )}{b f \sqrt [4]{\sec ^2(e+f x)}}\)

\(\Big \downarrow \) 1537

\(\displaystyle \frac {\sqrt {d \sec (e+f x)} \left (\frac {\frac {3 \left (5 a^2-2 b^2\right ) \left (-\frac {2 a \sqrt {-\tan ^2(e+f x)} \cot (e+f x) \left (-\frac {b^2 \int \frac {1}{\left (1-\frac {b^3 \tan ^2(e+f x)}{\sqrt {a^2+b^2}}\right ) \sqrt {1-\sqrt [4]{\frac {\tan (e+f x)}{b}+1}} \sqrt {\sqrt [4]{\frac {\tan (e+f x)}{b}+1}+1}}d\sqrt [4]{\frac {\tan (e+f x)}{b}+1}}{2 \left (a^2+b^2\right )}-\frac {b^2 \int \frac {1}{\left (\frac {\tan ^2(e+f x) b^3}{\sqrt {a^2+b^2}}+1\right ) \sqrt {1-\sqrt [4]{\frac {\tan (e+f x)}{b}+1}} \sqrt {\sqrt [4]{\frac {\tan (e+f x)}{b}+1}+1}}d\sqrt [4]{\frac {\tan (e+f x)}{b}+1}}{2 \left (a^2+b^2\right )}\right )}{b}-2 b^2 \left (\frac {\arctan \left (\frac {b^{3/2} \tan (e+f x)}{\sqrt [4]{a^2+b^2}}\right )}{2 \sqrt {b} \left (a^2+b^2\right )^{3/4}}+\frac {\text {arctanh}\left (\frac {b^{3/2} \tan (e+f x)}{\sqrt [4]{a^2+b^2}}\right )}{2 \sqrt {b} \left (a^2+b^2\right )^{3/4}}\right )\right )-14 a b \operatorname {EllipticF}\left (\frac {1}{2} \arctan (\tan (e+f x)),2\right )}{2 \left (a^2+b^2\right )}-\frac {7 a b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{\left (a^2+b^2\right ) (a+b \tan (e+f x))}}{4 \left (a^2+b^2\right )}-\frac {b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{2 \left (a^2+b^2\right ) (a+b \tan (e+f x))^2}\right )}{b f \sqrt [4]{\sec ^2(e+f x)}}\)

\(\Big \downarrow \) 412

\(\displaystyle \frac {\sqrt {d \sec (e+f x)} \left (\frac {\frac {3 \left (5 a^2-2 b^2\right ) \left (-\frac {2 a \sqrt {-\tan ^2(e+f x)} \cot (e+f x) \left (-\frac {b^2 \operatorname {EllipticPi}\left (-\frac {b}{\sqrt {a^2+b^2}},\arcsin \left (\sqrt [4]{\frac {\tan (e+f x)}{b}+1}\right ),-1\right )}{2 \left (a^2+b^2\right )}-\frac {b^2 \operatorname {EllipticPi}\left (\frac {b}{\sqrt {a^2+b^2}},\arcsin \left (\sqrt [4]{\frac {\tan (e+f x)}{b}+1}\right ),-1\right )}{2 \left (a^2+b^2\right )}\right )}{b}-2 b^2 \left (\frac {\arctan \left (\frac {b^{3/2} \tan (e+f x)}{\sqrt [4]{a^2+b^2}}\right )}{2 \sqrt {b} \left (a^2+b^2\right )^{3/4}}+\frac {\text {arctanh}\left (\frac {b^{3/2} \tan (e+f x)}{\sqrt [4]{a^2+b^2}}\right )}{2 \sqrt {b} \left (a^2+b^2\right )^{3/4}}\right )\right )-14 a b \operatorname {EllipticF}\left (\frac {1}{2} \arctan (\tan (e+f x)),2\right )}{2 \left (a^2+b^2\right )}-\frac {7 a b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{\left (a^2+b^2\right ) (a+b \tan (e+f x))}}{4 \left (a^2+b^2\right )}-\frac {b^2 \sqrt [4]{\tan ^2(e+f x)+1}}{2 \left (a^2+b^2\right ) (a+b \tan (e+f x))^2}\right )}{b f \sqrt [4]{\sec ^2(e+f x)}}\)

Input:

Int[Sqrt[d*Sec[e + f*x]]/(a + b*Tan[e + f*x])^3,x]
 

Output:

(Sqrt[d*Sec[e + f*x]]*(-1/2*(b^2*(1 + Tan[e + f*x]^2)^(1/4))/((a^2 + b^2)* 
(a + b*Tan[e + f*x])^2) + ((-7*a*b^2*(1 + Tan[e + f*x]^2)^(1/4))/((a^2 + b 
^2)*(a + b*Tan[e + f*x])) + (-14*a*b*EllipticF[ArcTan[Tan[e + f*x]]/2, 2] 
+ 3*(5*a^2 - 2*b^2)*(-2*b^2*(ArcTan[(b^(3/2)*Tan[e + f*x])/(a^2 + b^2)^(1/ 
4)]/(2*Sqrt[b]*(a^2 + b^2)^(3/4)) + ArcTanh[(b^(3/2)*Tan[e + f*x])/(a^2 + 
b^2)^(1/4)]/(2*Sqrt[b]*(a^2 + b^2)^(3/4))) - (2*a*Cot[e + f*x]*(-1/2*(b^2* 
EllipticPi[-(b/Sqrt[a^2 + b^2]), ArcSin[(1 + Tan[e + f*x]/b)^(1/4)], -1])/ 
(a^2 + b^2) - (b^2*EllipticPi[b/Sqrt[a^2 + b^2], ArcSin[(1 + Tan[e + f*x]/ 
b)^(1/4)], -1])/(2*(a^2 + b^2)))*Sqrt[-Tan[e + f*x]^2])/b))/(2*(a^2 + b^2) 
))/(4*(a^2 + b^2))))/(b*f*(Sec[e + f*x]^2)^(1/4))
 

Defintions of rubi rules used

rule 25

Int[-(Fx_), x_Symbol] :> Simp[Identity[-1]   Int[Fx, x], x]
 

rule 27

Int[(a_)*(Fx_), x_Symbol] :> Simp[a   Int[Fx, x], x] /; FreeQ[a, x] &&  !Ma 
tchQ[Fx, (b_)*(Gx_) /; FreeQ[b, x]]
 

rule 73

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]
 

rule 118

Int[1/(((a_.) + (b_.)*(x_))*Sqrt[(c_.) + (d_.)*(x_)]*((e_.) + (f_.)*(x_))^( 
3/4)), x_] :> Simp[-4   Subst[Int[1/((b*e - a*f - b*x^4)*Sqrt[c - d*(e/f) + 
 d*(x^4/f)]), x], x, (e + f*x)^(1/4)], x] /; FreeQ[{a, b, c, d, e, f}, x] & 
& GtQ[-f/(d*e - c*f), 0]
 

rule 218

Int[((a_) + (b_.)*(x_)^2)^(-1), x_Symbol] :> Simp[(Rt[a/b, 2]/a)*ArcTan[x/R 
t[a/b, 2]], x] /; FreeQ[{a, b}, x] && PosQ[a/b]
 

rule 221

Int[((a_) + (b_.)*(x_)^2)^(-1), x_Symbol] :> Simp[(Rt[-a/b, 2]/a)*ArcTanh[x 
/Rt[-a/b, 2]], x] /; FreeQ[{a, b}, x] && NegQ[a/b]
 

rule 229

Int[((a_) + (b_.)*(x_)^2)^(-3/4), x_Symbol] :> Simp[(2/(a^(3/4)*Rt[b/a, 2]) 
)*EllipticF[(1/2)*ArcTan[Rt[b/a, 2]*x], 2], x] /; FreeQ[{a, b}, x] && GtQ[a 
, 0] && PosQ[b/a]
 

rule 312

Int[1/(((a_) + (b_.)*(x_)^2)^(3/4)*((c_) + (d_.)*(x_)^2)), x_Symbol] :> Sim 
p[Sqrt[(-b)*(x^2/a)]/(2*x)   Subst[Int[1/(Sqrt[(-b)*(x/a)]*(a + b*x)^(3/4)* 
(c + d*x)), x], x, x^2], x] /; FreeQ[{a, b, c, d}, x] && NeQ[b*c - a*d, 0]
 

rule 353

Int[(x_)*((a_) + (b_.)*(x_)^2)^(p_.)*((c_) + (d_.)*(x_)^2)^(q_.), x_Symbol] 
 :> Simp[1/2   Subst[Int[(a + b*x)^p*(c + d*x)^q, x], x, x^2], x] /; FreeQ[ 
{a, b, c, d, p, q}, x] && NeQ[b*c - a*d, 0]
 

rule 412

Int[1/(((a_) + (b_.)*(x_)^2)*Sqrt[(c_) + (d_.)*(x_)^2]*Sqrt[(e_) + (f_.)*(x 
_)^2]), x_Symbol] :> Simp[(1/(a*Sqrt[c]*Sqrt[e]*Rt[-d/c, 2]))*EllipticPi[b* 
(c/(a*d)), ArcSin[Rt[-d/c, 2]*x], c*(f/(d*e))], x] /; FreeQ[{a, b, c, d, e, 
 f}, x] &&  !GtQ[d/c, 0] && GtQ[c, 0] && GtQ[e, 0] &&  !( !GtQ[f/e, 0] && S 
implerSqrtQ[-f/e, -d/c])
 

rule 498

Int[((c_) + (d_.)*(x_))^(n_)*((a_) + (b_.)*(x_)^2)^(p_), x_Symbol] :> Simp[ 
d*(c + d*x)^(n + 1)*((a + b*x^2)^(p + 1)/((n + 1)*(b*c^2 + a*d^2))), x] + S 
imp[b/((n + 1)*(b*c^2 + a*d^2))   Int[(c + d*x)^(n + 1)*(a + b*x^2)^p*(c*(n 
 + 1) - d*(n + 2*p + 3)*x), x], x] /; FreeQ[{a, b, c, d, n, p}, x] && NeQ[n 
, -1] && ((LtQ[n, -1] && IntQuadraticQ[a, 0, b, c, d, n, p, x]) || (SumSimp 
lerQ[n, 1] && IntegerQ[p]) || ILtQ[Simplify[n + 2*p + 3], 0])
 

rule 504

Int[((a_) + (b_.)*(x_)^2)^(p_)/((c_) + (d_.)*(x_)), x_Symbol] :> Simp[c   I 
nt[(a + b*x^2)^p/(c^2 - d^2*x^2), x], x] - Simp[d   Int[x*((a + b*x^2)^p/(c 
^2 - d^2*x^2)), x], x] /; FreeQ[{a, b, c, d, p}, x]
 

rule 688

Int[((d_.) + (e_.)*(x_))^(m_)*((f_.) + (g_.)*(x_))*((a_) + (c_.)*(x_)^2)^(p 
_.), x_Symbol] :> Simp[(e*f - d*g)*(d + e*x)^(m + 1)*((a + c*x^2)^(p + 1)/( 
(m + 1)*(c*d^2 + a*e^2))), x] + Simp[1/((m + 1)*(c*d^2 + a*e^2))   Int[(d + 
 e*x)^(m + 1)*(a + c*x^2)^p*Simp[(c*d*f + a*e*g)*(m + 1) - c*(e*f - d*g)*(m 
 + 2*p + 3)*x, x], x], x] /; FreeQ[{a, c, d, e, f, g, p}, x] && LtQ[m, -1] 
&& (IntegerQ[m] || IntegerQ[p] || IntegersQ[2*m, 2*p])
 

rule 719

Int[((d_.) + (e_.)*(x_))^(m_)*((f_.) + (g_.)*(x_))*((a_) + (c_.)*(x_)^2)^(p 
_.), x_Symbol] :> Simp[g/e   Int[(d + e*x)^(m + 1)*(a + c*x^2)^p, x], x] + 
Simp[(e*f - d*g)/e   Int[(d + e*x)^m*(a + c*x^2)^p, x], x] /; FreeQ[{a, c, 
d, e, f, g, m, p}, x] &&  !IGtQ[m, 0]
 

rule 756

Int[((a_) + (b_.)*(x_)^4)^(-1), x_Symbol] :> With[{r = Numerator[Rt[-a/b, 2 
]], s = Denominator[Rt[-a/b, 2]]}, Simp[r/(2*a)   Int[1/(r - s*x^2), x], x] 
 + Simp[r/(2*a)   Int[1/(r + s*x^2), x], x]] /; FreeQ[{a, b}, x] &&  !GtQ[a 
/b, 0]
 

rule 925

Int[1/(Sqrt[(a_) + (b_.)*(x_)^4]*((c_) + (d_.)*(x_)^4)), x_Symbol] :> Simp[ 
1/(2*c)   Int[1/(Sqrt[a + b*x^4]*(1 - Rt[-d/c, 2]*x^2)), x], x] + Simp[1/(2 
*c)   Int[1/(Sqrt[a + b*x^4]*(1 + Rt[-d/c, 2]*x^2)), x], x] /; FreeQ[{a, b, 
 c, d}, x] && NeQ[b*c - a*d, 0]
 

rule 1537

Int[1/(((d_) + (e_.)*(x_)^2)*Sqrt[(a_) + (c_.)*(x_)^4]), x_Symbol] :> With[ 
{q = Rt[(-a)*c, 2]}, Simp[Sqrt[-c]   Int[1/((d + e*x^2)*Sqrt[q + c*x^2]*Sqr 
t[q - c*x^2]), x], x]] /; FreeQ[{a, c, d, e}, x] && NeQ[c*d^2 + a*e^2, 0] & 
& GtQ[a, 0] && LtQ[c, 0]
 

rule 3042

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

rule 3994

Int[((d_.)*sec[(e_.) + (f_.)*(x_)])^(m_.)*((a_) + (b_.)*tan[(e_.) + (f_.)*( 
x_)])^(n_), x_Symbol] :> Simp[d^(2*IntPart[m/2])*((d*Sec[e + f*x])^(2*FracP 
art[m/2])/(b*f*(Sec[e + f*x]^2)^FracPart[m/2]))   Subst[Int[(a + x)^n*(1 + 
x^2/b^2)^(m/2 - 1), x], x, b*Tan[e + f*x]], x] /; FreeQ[{a, b, d, e, f, m, 
n}, x] && NeQ[a^2 + b^2, 0] &&  !IntegerQ[m] && IntegerQ[n]
 

Maple [B] (warning: unable to verify)

Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 31117 vs. \(2 (445 ) = 890\).

Time = 14.84 (sec) , antiderivative size = 31118, normalized size of antiderivative = 60.42

method	result	size
default	\(\text {Expression too large to display}\)	\(31118\)

Input:

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

Output:

result too large to display
 

Fricas [F(-1)]

Timed out. \[ \int \frac {\sqrt {d \sec (e+f x)}}{(a+b \tan (e+f x))^3} \, dx=\text {Timed out} \] Input:

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

Output:

Timed out
 

Sympy [F]

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

integrate((d*sec(f*x+e))**(1/2)/(a+b*tan(f*x+e))**3,x)
 

Output:

Integral(sqrt(d*sec(e + f*x))/(a + b*tan(e + f*x))**3, x)
 

Maxima [F(-1)]

Timed out. \[ \int \frac {\sqrt {d \sec (e+f x)}}{(a+b \tan (e+f x))^3} \, dx=\text {Timed out} \] Input:

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

Output:

Timed out
 

Giac [F]

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

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

Output:

integrate(sqrt(d*sec(f*x + e))/(b*tan(f*x + e) + a)^3, x)
 

Mupad [F(-1)]

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

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

Output:

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

Reduce [F]

\[ \int \frac {\sqrt {d \sec (e+f x)}}{(a+b \tan (e+f x))^3} \, dx=\sqrt {d}\, \left (\int \frac {\sqrt {\sec \left (f x +e \right )}}{\tan \left (f x +e \right )^{3} b^{3}+3 \tan \left (f x +e \right )^{2} a \,b^{2}+3 \tan \left (f x +e \right ) a^{2} b +a^{3}}d x \right ) \] Input:

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

Output:

sqrt(d)*int(sqrt(sec(e + f*x))/(tan(e + f*x)**3*b**3 + 3*tan(e + f*x)**2*a 
*b**2 + 3*tan(e + f*x)*a**2*b + a**3),x)