\(\int \frac {1}{(3-7 x^2+2 x^4)^{3/2}} \, dx\) [261]

Optimal result

Integrand size = 16, antiderivative size = 151 \[ \int \frac {1}{\left (3-7 x^2+2 x^4\right )^{3/2}} \, dx=\frac {x \left (37-14 x^2\right )}{75 \sqrt {3-7 x^2+2 x^4}}-\frac {7 \sqrt {\frac {2}{3}} \sqrt {1-2 x^2} \sqrt {3-x^2} E\left (\arcsin \left (\sqrt {2} x\right )|\frac {1}{6}\right )}{25 \sqrt {3-7 x^2+2 x^4}}+\frac {\sqrt {\frac {2}{3}} \sqrt {1-2 x^2} \sqrt {3-x^2} \operatorname {EllipticF}\left (\arcsin \left (\sqrt {2} x\right ),\frac {1}{6}\right )}{5 \sqrt {3-7 x^2+2 x^4}} \] Output:

1/75*x*(-14*x^2+37)/(2*x^4-7*x^2+3)^(1/2)-7/75*6^(1/2)*(-2*x^2+1)^(1/2)*(- 
x^2+3)^(1/2)*EllipticE(x*2^(1/2),1/6*6^(1/2))/(2*x^4-7*x^2+3)^(1/2)+1/15*( 
-2*x^2+1)^(1/2)*(-x^2+3)^(1/2)*EllipticF(x*2^(1/2),1/6*6^(1/2))*6^(1/2)/(2 
*x^4-7*x^2+3)^(1/2)
 

Mathematica [A] (verified)

Time = 6.02 (sec) , antiderivative size = 101, normalized size of antiderivative = 0.67 \[ \int \frac {1}{\left (3-7 x^2+2 x^4\right )^{3/2}} \, dx=\frac {37 x-14 x^3-7 \sqrt {6-12 x^2} \sqrt {3-x^2} E\left (\arcsin \left (\sqrt {2} x\right )|\frac {1}{6}\right )+5 \sqrt {6-12 x^2} \sqrt {3-x^2} \operatorname {EllipticF}\left (\arcsin \left (\sqrt {2} x\right ),\frac {1}{6}\right )}{75 \sqrt {3-7 x^2+2 x^4}} \] Input:

Integrate[(3 - 7*x^2 + 2*x^4)^(-3/2),x]
 

Output:

(37*x - 14*x^3 - 7*Sqrt[6 - 12*x^2]*Sqrt[3 - x^2]*EllipticE[ArcSin[Sqrt[2] 
*x], 1/6] + 5*Sqrt[6 - 12*x^2]*Sqrt[3 - x^2]*EllipticF[ArcSin[Sqrt[2]*x], 
1/6])/(75*Sqrt[3 - 7*x^2 + 2*x^4])
 

Rubi [A] (warning: unable to verify)

Time = 0.64 (sec) , antiderivative size = 269, normalized size of antiderivative = 1.78, number of steps used = 6, number of rules used = 6, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.375, Rules used = {1405, 27, 1497, 27, 1409, 1496}

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.

\(\displaystyle \int \frac {1}{\left (2 x^4-7 x^2+3\right )^{3/2}} \, dx\)

\(\Big \downarrow \) 1405

\(\displaystyle \frac {x \left (37-14 x^2\right )}{75 \sqrt {2 x^4-7 x^2+3}}-\frac {1}{75} \int \frac {2 \left (6-7 x^2\right )}{\sqrt {2 x^4-7 x^2+3}}dx\)

\(\Big \downarrow \) 27

\(\displaystyle \frac {x \left (37-14 x^2\right )}{75 \sqrt {2 x^4-7 x^2+3}}-\frac {2}{75} \int \frac {6-7 x^2}{\sqrt {2 x^4-7 x^2+3}}dx\)

\(\Big \downarrow \) 1497

\(\displaystyle \frac {x \left (37-14 x^2\right )}{75 \sqrt {2 x^4-7 x^2+3}}-\frac {2}{75} \left (\frac {1}{2} \left (12-7 \sqrt {6}\right ) \int \frac {1}{\sqrt {2 x^4-7 x^2+3}}dx+7 \sqrt {\frac {3}{2}} \int \frac {3-\sqrt {6} x^2}{3 \sqrt {2 x^4-7 x^2+3}}dx\right )\)

\(\Big \downarrow \) 27

\(\displaystyle \frac {x \left (37-14 x^2\right )}{75 \sqrt {2 x^4-7 x^2+3}}-\frac {2}{75} \left (\frac {1}{2} \left (12-7 \sqrt {6}\right ) \int \frac {1}{\sqrt {2 x^4-7 x^2+3}}dx+\frac {7 \int \frac {3-\sqrt {6} x^2}{\sqrt {2 x^4-7 x^2+3}}dx}{\sqrt {6}}\right )\)

\(\Big \downarrow \) 1409

\(\displaystyle \frac {x \left (37-14 x^2\right )}{75 \sqrt {2 x^4-7 x^2+3}}-\frac {2}{75} \left (\frac {7 \int \frac {3-\sqrt {6} x^2}{\sqrt {2 x^4-7 x^2+3}}dx}{\sqrt {6}}+\frac {\left (12-7 \sqrt {6}\right ) \left (\sqrt {6} x^2+3\right ) \sqrt {\frac {2 x^4-7 x^2+3}{\left (\sqrt {6} x^2+3\right )^2}} \operatorname {EllipticF}\left (2 \arctan \left (\sqrt [4]{\frac {2}{3}} x\right ),\frac {1}{24} \left (12+7 \sqrt {6}\right )\right )}{4 \sqrt [4]{6} \sqrt {2 x^4-7 x^2+3}}\right )\)

\(\Big \downarrow \) 1496

\(\displaystyle \frac {x \left (37-14 x^2\right )}{75 \sqrt {2 x^4-7 x^2+3}}-\frac {2}{75} \left (\frac {\left (12-7 \sqrt {6}\right ) \left (\sqrt {6} x^2+3\right ) \sqrt {\frac {2 x^4-7 x^2+3}{\left (\sqrt {6} x^2+3\right )^2}} \operatorname {EllipticF}\left (2 \arctan \left (\sqrt [4]{\frac {2}{3}} x\right ),\frac {1}{24} \left (12+7 \sqrt {6}\right )\right )}{4 \sqrt [4]{6} \sqrt {2 x^4-7 x^2+3}}+\frac {7 \left (\frac {3^{3/4} \left (\sqrt {6} x^2+3\right ) \sqrt {\frac {2 x^4-7 x^2+3}{\left (\sqrt {6} x^2+3\right )^2}} E\left (2 \arctan \left (\sqrt [4]{\frac {2}{3}} x\right )|\frac {1}{24} \left (12+7 \sqrt {6}\right )\right )}{\sqrt [4]{2} \sqrt {2 x^4-7 x^2+3}}-\frac {3 x \sqrt {2 x^4-7 x^2+3}}{\sqrt {6} x^2+3}\right )}{\sqrt {6}}\right )\)

Input:

Int[(3 - 7*x^2 + 2*x^4)^(-3/2),x]
 

Output:

(x*(37 - 14*x^2))/(75*Sqrt[3 - 7*x^2 + 2*x^4]) - (2*((7*((-3*x*Sqrt[3 - 7* 
x^2 + 2*x^4])/(3 + Sqrt[6]*x^2) + (3^(3/4)*(3 + Sqrt[6]*x^2)*Sqrt[(3 - 7*x 
^2 + 2*x^4)/(3 + Sqrt[6]*x^2)^2]*EllipticE[2*ArcTan[(2/3)^(1/4)*x], (12 + 
7*Sqrt[6])/24])/(2^(1/4)*Sqrt[3 - 7*x^2 + 2*x^4])))/Sqrt[6] + ((12 - 7*Sqr 
t[6])*(3 + Sqrt[6]*x^2)*Sqrt[(3 - 7*x^2 + 2*x^4)/(3 + Sqrt[6]*x^2)^2]*Elli 
pticF[2*ArcTan[(2/3)^(1/4)*x], (12 + 7*Sqrt[6])/24])/(4*6^(1/4)*Sqrt[3 - 7 
*x^2 + 2*x^4])))/75
 

Defintions of rubi rules used

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 1405

Int[((a_) + (b_.)*(x_)^2 + (c_.)*(x_)^4)^(p_), x_Symbol] :> Simp[(-x)*(b^2 
- 2*a*c + b*c*x^2)*((a + b*x^2 + c*x^4)^(p + 1)/(2*a*(p + 1)*(b^2 - 4*a*c)) 
), x] + Simp[1/(2*a*(p + 1)*(b^2 - 4*a*c))   Int[(b^2 - 2*a*c + 2*(p + 1)*( 
b^2 - 4*a*c) + b*c*(4*p + 7)*x^2)*(a + b*x^2 + c*x^4)^(p + 1), x], x] /; Fr 
eeQ[{a, b, c}, x] && NeQ[b^2 - 4*a*c, 0] && LtQ[p, -1] && IntegerQ[2*p]
 

rule 1409

Int[1/Sqrt[(a_) + (b_.)*(x_)^2 + (c_.)*(x_)^4], x_Symbol] :> With[{q = Rt[c 
/a, 4]}, Simp[(1 + q^2*x^2)*(Sqrt[(a + b*x^2 + c*x^4)/(a*(1 + q^2*x^2)^2)]/ 
(2*q*Sqrt[a + b*x^2 + c*x^4]))*EllipticF[2*ArcTan[q*x], 1/2 - b*(q^2/(4*c)) 
], x]] /; FreeQ[{a, b, c}, x] && GtQ[b^2 - 4*a*c, 0] && GtQ[c/a, 0] && LtQ[ 
b/a, 0]
 

rule 1496

Int[((d_) + (e_.)*(x_)^2)/Sqrt[(a_) + (b_.)*(x_)^2 + (c_.)*(x_)^4], x_Symbo 
l] :> With[{q = Rt[c/a, 4]}, Simp[(-d)*x*(Sqrt[a + b*x^2 + c*x^4]/(a*(1 + q 
^2*x^2))), x] + Simp[d*(1 + q^2*x^2)*(Sqrt[(a + b*x^2 + c*x^4)/(a*(1 + q^2* 
x^2)^2)]/(q*Sqrt[a + b*x^2 + c*x^4]))*EllipticE[2*ArcTan[q*x], 1/2 - b*(q^2 
/(4*c))], x] /; EqQ[e + d*q^2, 0]] /; FreeQ[{a, b, c, d, e}, x] && GtQ[b^2 
- 4*a*c, 0] && GtQ[c/a, 0] && LtQ[b/a, 0]
 

rule 1497

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

Maple [A] (verified)

Time = 2.16 (sec) , antiderivative size = 136, normalized size of antiderivative = 0.90

method	result	size
risch	\(-\frac {x \left (14 x^{2}-37\right )}{75 \sqrt {2 x^{4}-7 x^{2}+3}}-\frac {2 \sqrt {2}\, \sqrt {-2 x^{2}+1}\, \sqrt {-3 x^{2}+9}\, \operatorname {EllipticF}\left (x \sqrt {2}, \frac {\sqrt {6}}{6}\right )}{75 \sqrt {2 x^{4}-7 x^{2}+3}}+\frac {7 \sqrt {2}\, \sqrt {-2 x^{2}+1}\, \sqrt {-3 x^{2}+9}\, \left (\operatorname {EllipticF}\left (x \sqrt {2}, \frac {\sqrt {6}}{6}\right )-\operatorname {EllipticE}\left (x \sqrt {2}, \frac {\sqrt {6}}{6}\right )\right )}{75 \sqrt {2 x^{4}-7 x^{2}+3}}\)	\(136\)
default	\(-\frac {4 \left (-\frac {37}{300} x +\frac {7}{150} x^{3}\right )}{\sqrt {2 x^{4}-7 x^{2}+3}}-\frac {2 \sqrt {2}\, \sqrt {-2 x^{2}+1}\, \sqrt {-3 x^{2}+9}\, \operatorname {EllipticF}\left (x \sqrt {2}, \frac {\sqrt {6}}{6}\right )}{75 \sqrt {2 x^{4}-7 x^{2}+3}}+\frac {7 \sqrt {2}\, \sqrt {-2 x^{2}+1}\, \sqrt {-3 x^{2}+9}\, \left (\operatorname {EllipticF}\left (x \sqrt {2}, \frac {\sqrt {6}}{6}\right )-\operatorname {EllipticE}\left (x \sqrt {2}, \frac {\sqrt {6}}{6}\right )\right )}{75 \sqrt {2 x^{4}-7 x^{2}+3}}\)	\(137\)
elliptic	\(-\frac {4 \left (-\frac {37}{300} x +\frac {7}{150} x^{3}\right )}{\sqrt {2 x^{4}-7 x^{2}+3}}-\frac {2 \sqrt {2}\, \sqrt {-2 x^{2}+1}\, \sqrt {-3 x^{2}+9}\, \operatorname {EllipticF}\left (x \sqrt {2}, \frac {\sqrt {6}}{6}\right )}{75 \sqrt {2 x^{4}-7 x^{2}+3}}+\frac {7 \sqrt {2}\, \sqrt {-2 x^{2}+1}\, \sqrt {-3 x^{2}+9}\, \left (\operatorname {EllipticF}\left (x \sqrt {2}, \frac {\sqrt {6}}{6}\right )-\operatorname {EllipticE}\left (x \sqrt {2}, \frac {\sqrt {6}}{6}\right )\right )}{75 \sqrt {2 x^{4}-7 x^{2}+3}}\)	\(137\)

Input:

int(1/(2*x^4-7*x^2+3)^(3/2),x,method=_RETURNVERBOSE)
 

Output:

-1/75*x*(14*x^2-37)/(2*x^4-7*x^2+3)^(1/2)-2/75*2^(1/2)*(-2*x^2+1)^(1/2)*(- 
3*x^2+9)^(1/2)/(2*x^4-7*x^2+3)^(1/2)*EllipticF(x*2^(1/2),1/6*6^(1/2))+7/75 
*2^(1/2)*(-2*x^2+1)^(1/2)*(-3*x^2+9)^(1/2)/(2*x^4-7*x^2+3)^(1/2)*(Elliptic 
F(x*2^(1/2),1/6*6^(1/2))-EllipticE(x*2^(1/2),1/6*6^(1/2)))
 

Fricas [A] (verification not implemented)

Time = 0.07 (sec) , antiderivative size = 97, normalized size of antiderivative = 0.64 \[ \int \frac {1}{\left (3-7 x^2+2 x^4\right )^{3/2}} \, dx=-\frac {14 \, \sqrt {3} \sqrt {2} {\left (2 \, x^{4} - 7 \, x^{2} + 3\right )} E(\arcsin \left (\sqrt {2} x\right )\,|\,\frac {1}{6}) - 12 \, \sqrt {3} \sqrt {2} {\left (2 \, x^{4} - 7 \, x^{2} + 3\right )} F(\arcsin \left (\sqrt {2} x\right )\,|\,\frac {1}{6}) + \sqrt {2 \, x^{4} - 7 \, x^{2} + 3} {\left (14 \, x^{3} - 37 \, x\right )}}{75 \, {\left (2 \, x^{4} - 7 \, x^{2} + 3\right )}} \] Input:

integrate(1/(2*x^4-7*x^2+3)^(3/2),x, algorithm="fricas")
 

Output:

-1/75*(14*sqrt(3)*sqrt(2)*(2*x^4 - 7*x^2 + 3)*elliptic_e(arcsin(sqrt(2)*x) 
, 1/6) - 12*sqrt(3)*sqrt(2)*(2*x^4 - 7*x^2 + 3)*elliptic_f(arcsin(sqrt(2)* 
x), 1/6) + sqrt(2*x^4 - 7*x^2 + 3)*(14*x^3 - 37*x))/(2*x^4 - 7*x^2 + 3)
                                                                                    
                                                                                    
 

Sympy [F]

\[ \int \frac {1}{\left (3-7 x^2+2 x^4\right )^{3/2}} \, dx=\int \frac {1}{\left (2 x^{4} - 7 x^{2} + 3\right )^{\frac {3}{2}}}\, dx \] Input:

integrate(1/(2*x**4-7*x**2+3)**(3/2),x)
 

Output:

Integral((2*x**4 - 7*x**2 + 3)**(-3/2), x)
 

Maxima [F]

\[ \int \frac {1}{\left (3-7 x^2+2 x^4\right )^{3/2}} \, dx=\int { \frac {1}{{\left (2 \, x^{4} - 7 \, x^{2} + 3\right )}^{\frac {3}{2}}} \,d x } \] Input:

integrate(1/(2*x^4-7*x^2+3)^(3/2),x, algorithm="maxima")
 

Output:

integrate((2*x^4 - 7*x^2 + 3)^(-3/2), x)
 

Giac [F]

\[ \int \frac {1}{\left (3-7 x^2+2 x^4\right )^{3/2}} \, dx=\int { \frac {1}{{\left (2 \, x^{4} - 7 \, x^{2} + 3\right )}^{\frac {3}{2}}} \,d x } \] Input:

integrate(1/(2*x^4-7*x^2+3)^(3/2),x, algorithm="giac")
 

Output:

integrate((2*x^4 - 7*x^2 + 3)^(-3/2), x)
 

Mupad [F(-1)]

Timed out. \[ \int \frac {1}{\left (3-7 x^2+2 x^4\right )^{3/2}} \, dx=\int \frac {1}{{\left (2\,x^4-7\,x^2+3\right )}^{3/2}} \,d x \] Input:

int(1/(2*x^4 - 7*x^2 + 3)^(3/2),x)
 

Output:

int(1/(2*x^4 - 7*x^2 + 3)^(3/2), x)
 

Reduce [F]

\[ \int \frac {1}{\left (3-7 x^2+2 x^4\right )^{3/2}} \, dx=\int \frac {\sqrt {2 x^{4}-7 x^{2}+3}}{4 x^{8}-28 x^{6}+61 x^{4}-42 x^{2}+9}d x \] Input:

int(1/(2*x^4-7*x^2+3)^(3/2),x)
 

Output:

int(sqrt(2*x**4 - 7*x**2 + 3)/(4*x**8 - 28*x**6 + 61*x**4 - 42*x**2 + 9),x 
)