Integrand size = 41, antiderivative size = 205 \[ \int \frac {A+B x^2}{\left (a+b x^2\right ) \sqrt {c-d x^2} \sqrt {e-f x^2}} \, dx=\frac {B \sqrt {c} \sqrt {1-\frac {d x^2}{c}} \sqrt {1-\frac {f x^2}{e}} \operatorname {EllipticF}\left (\arcsin \left (\frac {\sqrt {d} x}{\sqrt {c}}\right ),\frac {c f}{d e}\right )}{b \sqrt {d} \sqrt {c-d x^2} \sqrt {e-f x^2}}+\frac {(A b-a B) \sqrt {c} \sqrt {1-\frac {d x^2}{c}} \sqrt {1-\frac {f x^2}{e}} \operatorname {EllipticPi}\left (-\frac {b c}{a d},\arcsin \left (\frac {\sqrt {d} x}{\sqrt {c}}\right ),\frac {c f}{d e}\right )}{a b \sqrt {d} \sqrt {c-d x^2} \sqrt {e-f x^2}} \] Output:
B*c^(1/2)*(1-d*x^2/c)^(1/2)*(1-f*x^2/e)^(1/2)*EllipticF(d^(1/2)*x/c^(1/2), (c*f/d/e)^(1/2))/b/d^(1/2)/(-d*x^2+c)^(1/2)/(-f*x^2+e)^(1/2)+(A*b-B*a)*c^( 1/2)*(1-d*x^2/c)^(1/2)*(1-f*x^2/e)^(1/2)*EllipticPi(d^(1/2)*x/c^(1/2),-b*c /a/d,(c*f/d/e)^(1/2))/a/b/d^(1/2)/(-d*x^2+c)^(1/2)/(-f*x^2+e)^(1/2)
Result contains complex when optimal does not.
Time = 8.52 (sec) , antiderivative size = 151, normalized size of antiderivative = 0.74 \[ \int \frac {A+B x^2}{\left (a+b x^2\right ) \sqrt {c-d x^2} \sqrt {e-f x^2}} \, dx=-\frac {i \sqrt {1-\frac {d x^2}{c}} \sqrt {1-\frac {f x^2}{e}} \left (a B \operatorname {EllipticF}\left (i \text {arcsinh}\left (\sqrt {-\frac {d}{c}} x\right ),\frac {c f}{d e}\right )+(A b-a B) \operatorname {EllipticPi}\left (-\frac {b c}{a d},i \text {arcsinh}\left (\sqrt {-\frac {d}{c}} x\right ),\frac {c f}{d e}\right )\right )}{a b \sqrt {-\frac {d}{c}} \sqrt {c-d x^2} \sqrt {e-f x^2}} \] Input:
Integrate[(A + B*x^2)/((a + b*x^2)*Sqrt[c - d*x^2]*Sqrt[e - f*x^2]),x]
Output:
((-I)*Sqrt[1 - (d*x^2)/c]*Sqrt[1 - (f*x^2)/e]*(a*B*EllipticF[I*ArcSinh[Sqr t[-(d/c)]*x], (c*f)/(d*e)] + (A*b - a*B)*EllipticPi[-((b*c)/(a*d)), I*ArcS inh[Sqrt[-(d/c)]*x], (c*f)/(d*e)]))/(a*b*Sqrt[-(d/c)]*Sqrt[c - d*x^2]*Sqrt [e - f*x^2])
Time = 1.11 (sec) , antiderivative size = 205, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.049, Rules used = {7276, 2009}
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.
\(\displaystyle \int \frac {A+B x^2}{\left (a+b x^2\right ) \sqrt {c-d x^2} \sqrt {e-f x^2}} \, dx\) |
\(\Big \downarrow \) 7276 |
\(\displaystyle \int \left (\frac {A b-a B}{b \left (a+b x^2\right ) \sqrt {c-d x^2} \sqrt {e-f x^2}}+\frac {B}{b \sqrt {c-d x^2} \sqrt {e-f x^2}}\right )dx\) |
\(\Big \downarrow \) 2009 |
\(\displaystyle \frac {\sqrt {c} \sqrt {1-\frac {d x^2}{c}} \sqrt {1-\frac {f x^2}{e}} (A b-a B) \operatorname {EllipticPi}\left (-\frac {b c}{a d},\arcsin \left (\frac {\sqrt {d} x}{\sqrt {c}}\right ),\frac {c f}{d e}\right )}{a b \sqrt {d} \sqrt {c-d x^2} \sqrt {e-f x^2}}+\frac {B \sqrt {e} \sqrt {1-\frac {d x^2}{c}} \sqrt {1-\frac {f x^2}{e}} \operatorname {EllipticF}\left (\arcsin \left (\frac {\sqrt {f} x}{\sqrt {e}}\right ),\frac {d e}{c f}\right )}{b \sqrt {f} \sqrt {c-d x^2} \sqrt {e-f x^2}}\) |
Input:
Int[(A + B*x^2)/((a + b*x^2)*Sqrt[c - d*x^2]*Sqrt[e - f*x^2]),x]
Output:
(B*Sqrt[e]*Sqrt[1 - (d*x^2)/c]*Sqrt[1 - (f*x^2)/e]*EllipticF[ArcSin[(Sqrt[ f]*x)/Sqrt[e]], (d*e)/(c*f)])/(b*Sqrt[f]*Sqrt[c - d*x^2]*Sqrt[e - f*x^2]) + ((A*b - a*B)*Sqrt[c]*Sqrt[1 - (d*x^2)/c]*Sqrt[1 - (f*x^2)/e]*EllipticPi[ -((b*c)/(a*d)), ArcSin[(Sqrt[d]*x)/Sqrt[c]], (c*f)/(d*e)])/(a*b*Sqrt[d]*Sq rt[c - d*x^2]*Sqrt[e - f*x^2])
Int[(u_)/((a_) + (b_.)*(x_)^(n_)), x_Symbol] :> With[{v = RationalFunctionE xpand[u/(a + b*x^n), x]}, Int[v, x] /; SumQ[v]] /; FreeQ[{a, b}, x] && IGtQ [n, 0]
Time = 5.94 (sec) , antiderivative size = 191, normalized size of antiderivative = 0.93
method | result | size |
default | \(\frac {\left (A \operatorname {EllipticPi}\left (x \sqrt {\frac {f}{e}}, -\frac {b e}{a f}, \frac {\sqrt {\frac {d}{c}}}{\sqrt {\frac {f}{e}}}\right ) b +B \operatorname {EllipticF}\left (x \sqrt {\frac {f}{e}}, \sqrt {\frac {d e}{c f}}\right ) a -B \operatorname {EllipticPi}\left (x \sqrt {\frac {f}{e}}, -\frac {b e}{a f}, \frac {\sqrt {\frac {d}{c}}}{\sqrt {\frac {f}{e}}}\right ) a \right ) \sqrt {\frac {-x^{2} d +c}{c}}\, \sqrt {\frac {-f \,x^{2}+e}{e}}\, \sqrt {-x^{2} d +c}\, \sqrt {-f \,x^{2}+e}}{b a \sqrt {\frac {f}{e}}\, \left (d f \,x^{4}-c f \,x^{2}-d e \,x^{2}+c e \right )}\) | \(191\) |
elliptic | \(\frac {\sqrt {\left (-x^{2} d +c \right ) \left (-f \,x^{2}+e \right )}\, \left (\frac {B \sqrt {1-\frac {f \,x^{2}}{e}}\, \sqrt {1-\frac {d \,x^{2}}{c}}\, \operatorname {EllipticF}\left (x \sqrt {\frac {f}{e}}, \sqrt {-1-\frac {-c f -d e}{c f}}\right )}{b \sqrt {\frac {f}{e}}\, \sqrt {d f \,x^{4}-c f \,x^{2}-d e \,x^{2}+c e}}+\frac {\sqrt {1-\frac {f \,x^{2}}{e}}\, \sqrt {1-\frac {d \,x^{2}}{c}}\, \operatorname {EllipticPi}\left (x \sqrt {\frac {f}{e}}, -\frac {b e}{a f}, \frac {\sqrt {\frac {d}{c}}}{\sqrt {\frac {f}{e}}}\right ) A}{a \sqrt {\frac {f}{e}}\, \sqrt {d f \,x^{4}-c f \,x^{2}-d e \,x^{2}+c e}}-\frac {\sqrt {1-\frac {f \,x^{2}}{e}}\, \sqrt {1-\frac {d \,x^{2}}{c}}\, \operatorname {EllipticPi}\left (x \sqrt {\frac {f}{e}}, -\frac {b e}{a f}, \frac {\sqrt {\frac {d}{c}}}{\sqrt {\frac {f}{e}}}\right ) B}{b \sqrt {\frac {f}{e}}\, \sqrt {d f \,x^{4}-c f \,x^{2}-d e \,x^{2}+c e}}\right )}{\sqrt {-x^{2} d +c}\, \sqrt {-f \,x^{2}+e}}\) | \(336\) |
Input:
int((B*x^2+A)/(b*x^2+a)/(-d*x^2+c)^(1/2)/(-f*x^2+e)^(1/2),x,method=_RETURN VERBOSE)
Output:
(A*EllipticPi(x*(f/e)^(1/2),-b*e/a/f,(1/c*d)^(1/2)/(f/e)^(1/2))*b+B*Ellipt icF(x*(f/e)^(1/2),(d*e/c/f)^(1/2))*a-B*EllipticPi(x*(f/e)^(1/2),-b*e/a/f,( 1/c*d)^(1/2)/(f/e)^(1/2))*a)*((-d*x^2+c)/c)^(1/2)*((-f*x^2+e)/e)^(1/2)/b*( -d*x^2+c)^(1/2)*(-f*x^2+e)^(1/2)/a/(f/e)^(1/2)/(d*f*x^4-c*f*x^2-d*e*x^2+c* e)
Timed out. \[ \int \frac {A+B x^2}{\left (a+b x^2\right ) \sqrt {c-d x^2} \sqrt {e-f x^2}} \, dx=\text {Timed out} \] Input:
integrate((B*x^2+A)/(b*x^2+a)/(-d*x^2+c)^(1/2)/(-f*x^2+e)^(1/2),x, algorit hm="fricas")
Output:
Timed out
\[ \int \frac {A+B x^2}{\left (a+b x^2\right ) \sqrt {c-d x^2} \sqrt {e-f x^2}} \, dx=\int \frac {A + B x^{2}}{\left (a + b x^{2}\right ) \sqrt {c - d x^{2}} \sqrt {e - f x^{2}}}\, dx \] Input:
integrate((B*x**2+A)/(b*x**2+a)/(-d*x**2+c)**(1/2)/(-f*x**2+e)**(1/2),x)
Output:
Integral((A + B*x**2)/((a + b*x**2)*sqrt(c - d*x**2)*sqrt(e - f*x**2)), x)
\[ \int \frac {A+B x^2}{\left (a+b x^2\right ) \sqrt {c-d x^2} \sqrt {e-f x^2}} \, dx=\int { \frac {B x^{2} + A}{{\left (b x^{2} + a\right )} \sqrt {-d x^{2} + c} \sqrt {-f x^{2} + e}} \,d x } \] Input:
integrate((B*x^2+A)/(b*x^2+a)/(-d*x^2+c)^(1/2)/(-f*x^2+e)^(1/2),x, algorit hm="maxima")
Output:
integrate((B*x^2 + A)/((b*x^2 + a)*sqrt(-d*x^2 + c)*sqrt(-f*x^2 + e)), x)
\[ \int \frac {A+B x^2}{\left (a+b x^2\right ) \sqrt {c-d x^2} \sqrt {e-f x^2}} \, dx=\int { \frac {B x^{2} + A}{{\left (b x^{2} + a\right )} \sqrt {-d x^{2} + c} \sqrt {-f x^{2} + e}} \,d x } \] Input:
integrate((B*x^2+A)/(b*x^2+a)/(-d*x^2+c)^(1/2)/(-f*x^2+e)^(1/2),x, algorit hm="giac")
Output:
integrate((B*x^2 + A)/((b*x^2 + a)*sqrt(-d*x^2 + c)*sqrt(-f*x^2 + e)), x)
Timed out. \[ \int \frac {A+B x^2}{\left (a+b x^2\right ) \sqrt {c-d x^2} \sqrt {e-f x^2}} \, dx=\int \frac {B\,x^2+A}{\left (b\,x^2+a\right )\,\sqrt {c-d\,x^2}\,\sqrt {e-f\,x^2}} \,d x \] Input:
int((A + B*x^2)/((a + b*x^2)*(c - d*x^2)^(1/2)*(e - f*x^2)^(1/2)),x)
Output:
int((A + B*x^2)/((a + b*x^2)*(c - d*x^2)^(1/2)*(e - f*x^2)^(1/2)), x)
\[ \int \frac {A+B x^2}{\left (a+b x^2\right ) \sqrt {c-d x^2} \sqrt {e-f x^2}} \, dx=\int \frac {\sqrt {-f \,x^{2}+e}\, \sqrt {-d \,x^{2}+c}}{d f \,x^{4}-c f \,x^{2}-d e \,x^{2}+c e}d x \] Input:
int((B*x^2+A)/(b*x^2+a)/(-d*x^2+c)^(1/2)/(-f*x^2+e)^(1/2),x)
Output:
int((sqrt(e - f*x**2)*sqrt(c - d*x**2))/(c*e - c*f*x**2 - d*e*x**2 + d*f*x **4),x)