Integrand size = 26, antiderivative size = 94 \[ \int \frac {1}{x^3 \sqrt [4]{a+b x^2} \sqrt [4]{c+d x^2}} \, dx=\frac {2 b \left (a+b x^2\right )^{3/4} \sqrt [4]{\frac {b \left (c+d x^2\right )}{b c-a d}} \operatorname {AppellF1}\left (\frac {3}{4},2,\frac {1}{4},\frac {7}{4},1+\frac {b x^2}{a},-\frac {d \left (a+b x^2\right )}{b c-a d}\right )}{3 a^2 \sqrt [4]{c+d x^2}} \] Output:
2/3*b*(b*x^2+a)^(3/4)*(b*(d*x^2+c)/(-a*d+b*c))^(1/4)*AppellF1(3/4,1/4,2,7/ 4,-d*(b*x^2+a)/(-a*d+b*c),1+b*x^2/a)/a^2/(d*x^2+c)^(1/4)
Time = 2.06 (sec) , antiderivative size = 183, normalized size of antiderivative = 1.95 \[ \int \frac {1}{x^3 \sqrt [4]{a+b x^2} \sqrt [4]{c+d x^2}} \, dx=\frac {-2 \left (a+b x^2\right ) \left (c+d x^2\right )+(b c+a d) \sqrt [4]{1+\frac {a}{b x^2}} \sqrt [4]{1+\frac {c}{d x^2}} x^2 \operatorname {AppellF1}\left (\frac {1}{2},\frac {1}{4},\frac {1}{4},\frac {3}{2},-\frac {a}{b x^2},-\frac {c}{d x^2}\right )+b d x^4 \sqrt [4]{1+\frac {b x^2}{a}} \sqrt [4]{1+\frac {d x^2}{c}} \operatorname {AppellF1}\left (1,\frac {1}{4},\frac {1}{4},2,-\frac {b x^2}{a},-\frac {d x^2}{c}\right )}{4 a c x^2 \sqrt [4]{a+b x^2} \sqrt [4]{c+d x^2}} \] Input:
Integrate[1/(x^3*(a + b*x^2)^(1/4)*(c + d*x^2)^(1/4)),x]
Output:
(-2*(a + b*x^2)*(c + d*x^2) + (b*c + a*d)*(1 + a/(b*x^2))^(1/4)*(1 + c/(d* x^2))^(1/4)*x^2*AppellF1[1/2, 1/4, 1/4, 3/2, -(a/(b*x^2)), -(c/(d*x^2))] + b*d*x^4*(1 + (b*x^2)/a)^(1/4)*(1 + (d*x^2)/c)^(1/4)*AppellF1[1, 1/4, 1/4, 2, -((b*x^2)/a), -((d*x^2)/c)])/(4*a*c*x^2*(a + b*x^2)^(1/4)*(c + d*x^2)^ (1/4))
Time = 0.23 (sec) , antiderivative size = 95, normalized size of antiderivative = 1.01, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.115, Rules used = {354, 154, 153}
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.
\(\displaystyle \int \frac {1}{x^3 \sqrt [4]{a+b x^2} \sqrt [4]{c+d x^2}} \, dx\) |
\(\Big \downarrow \) 354 |
\(\displaystyle \frac {1}{2} \int \frac {1}{x^4 \sqrt [4]{b x^2+a} \sqrt [4]{d x^2+c}}dx^2\) |
\(\Big \downarrow \) 154 |
\(\displaystyle \frac {\sqrt [4]{\frac {b \left (c+d x^2\right )}{b c-a d}} \int \frac {1}{x^4 \sqrt [4]{b x^2+a} \sqrt [4]{\frac {b d x^2}{b c-a d}+\frac {b c}{b c-a d}}}dx^2}{2 \sqrt [4]{c+d x^2}}\) |
\(\Big \downarrow \) 153 |
\(\displaystyle \frac {2 b \left (a+b x^2\right )^{3/4} \sqrt [4]{\frac {b \left (c+d x^2\right )}{b c-a d}} \operatorname {AppellF1}\left (\frac {3}{4},\frac {1}{4},2,\frac {7}{4},-\frac {d \left (b x^2+a\right )}{b c-a d},\frac {b x^2+a}{a}\right )}{3 a^2 \sqrt [4]{c+d x^2}}\) |
Input:
Int[1/(x^3*(a + b*x^2)^(1/4)*(c + d*x^2)^(1/4)),x]
Output:
(2*b*(a + b*x^2)^(3/4)*((b*(c + d*x^2))/(b*c - a*d))^(1/4)*AppellF1[3/4, 1 /4, 2, 7/4, -((d*(a + b*x^2))/(b*c - a*d)), (a + b*x^2)/a])/(3*a^2*(c + d* x^2)^(1/4))
Int[((a_) + (b_.)*(x_))^(m_)*((c_.) + (d_.)*(x_))^(n_)*((e_.) + (f_.)*(x_)) ^(p_), x_] :> Simp[(b*e - a*f)^p*((a + b*x)^(m + 1)/(b^(p + 1)*(m + 1)*Simp lify[b/(b*c - a*d)]^n))*AppellF1[m + 1, -n, -p, m + 2, (-d)*((a + b*x)/(b*c - a*d)), (-f)*((a + b*x)/(b*e - a*f))], x] /; FreeQ[{a, b, c, d, e, f, m, n}, x] && !IntegerQ[m] && !IntegerQ[n] && IntegerQ[p] && GtQ[Simplify[b/( b*c - a*d)], 0] && !(GtQ[Simplify[d/(d*a - c*b)], 0] && SimplerQ[c + d*x, a + b*x])
Int[((a_) + (b_.)*(x_))^(m_)*((c_.) + (d_.)*(x_))^(n_)*((e_.) + (f_.)*(x_)) ^(p_), x_] :> Simp[(c + d*x)^FracPart[n]/(Simplify[b/(b*c - a*d)]^IntPart[n ]*(b*((c + d*x)/(b*c - a*d)))^FracPart[n]) Int[(a + b*x)^m*Simp[b*(c/(b*c - a*d)) + b*d*(x/(b*c - a*d)), x]^n*(e + f*x)^p, x], x] /; FreeQ[{a, b, c, d, e, f, m, n}, x] && !IntegerQ[m] && !IntegerQ[n] && IntegerQ[p] && !G tQ[Simplify[b/(b*c - a*d)], 0] && !SimplerQ[c + d*x, a + b*x]
Int[(x_)^(m_.)*((a_) + (b_.)*(x_)^2)^(p_.)*((c_) + (d_.)*(x_)^2)^(q_.), x_S ymbol] :> Simp[1/2 Subst[Int[x^((m - 1)/2)*(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] && IntegerQ [(m - 1)/2]
\[\int \frac {1}{x^{3} \left (b \,x^{2}+a \right )^{\frac {1}{4}} \left (x^{2} d +c \right )^{\frac {1}{4}}}d x\]
Input:
int(1/x^3/(b*x^2+a)^(1/4)/(d*x^2+c)^(1/4),x)
Output:
int(1/x^3/(b*x^2+a)^(1/4)/(d*x^2+c)^(1/4),x)
Timed out. \[ \int \frac {1}{x^3 \sqrt [4]{a+b x^2} \sqrt [4]{c+d x^2}} \, dx=\text {Timed out} \] Input:
integrate(1/x^3/(b*x^2+a)^(1/4)/(d*x^2+c)^(1/4),x, algorithm="fricas")
Output:
Timed out
\[ \int \frac {1}{x^3 \sqrt [4]{a+b x^2} \sqrt [4]{c+d x^2}} \, dx=\int \frac {1}{x^{3} \sqrt [4]{a + b x^{2}} \sqrt [4]{c + d x^{2}}}\, dx \] Input:
integrate(1/x**3/(b*x**2+a)**(1/4)/(d*x**2+c)**(1/4),x)
Output:
Integral(1/(x**3*(a + b*x**2)**(1/4)*(c + d*x**2)**(1/4)), x)
\[ \int \frac {1}{x^3 \sqrt [4]{a+b x^2} \sqrt [4]{c+d x^2}} \, dx=\int { \frac {1}{{\left (b x^{2} + a\right )}^{\frac {1}{4}} {\left (d x^{2} + c\right )}^{\frac {1}{4}} x^{3}} \,d x } \] Input:
integrate(1/x^3/(b*x^2+a)^(1/4)/(d*x^2+c)^(1/4),x, algorithm="maxima")
Output:
integrate(1/((b*x^2 + a)^(1/4)*(d*x^2 + c)^(1/4)*x^3), x)
\[ \int \frac {1}{x^3 \sqrt [4]{a+b x^2} \sqrt [4]{c+d x^2}} \, dx=\int { \frac {1}{{\left (b x^{2} + a\right )}^{\frac {1}{4}} {\left (d x^{2} + c\right )}^{\frac {1}{4}} x^{3}} \,d x } \] Input:
integrate(1/x^3/(b*x^2+a)^(1/4)/(d*x^2+c)^(1/4),x, algorithm="giac")
Output:
integrate(1/((b*x^2 + a)^(1/4)*(d*x^2 + c)^(1/4)*x^3), x)
Timed out. \[ \int \frac {1}{x^3 \sqrt [4]{a+b x^2} \sqrt [4]{c+d x^2}} \, dx=\int \frac {1}{x^3\,{\left (b\,x^2+a\right )}^{1/4}\,{\left (d\,x^2+c\right )}^{1/4}} \,d x \] Input:
int(1/(x^3*(a + b*x^2)^(1/4)*(c + d*x^2)^(1/4)),x)
Output:
int(1/(x^3*(a + b*x^2)^(1/4)*(c + d*x^2)^(1/4)), x)
\[ \int \frac {1}{x^3 \sqrt [4]{a+b x^2} \sqrt [4]{c+d x^2}} \, dx=\int \frac {1}{\left (d \,x^{2}+c \right )^{\frac {1}{4}} \left (b \,x^{2}+a \right )^{\frac {1}{4}} x^{3}}d x \] Input:
int(1/x^3/(b*x^2+a)^(1/4)/(d*x^2+c)^(1/4),x)
Output:
int(1/((c + d*x**2)**(1/4)*(a + b*x**2)**(1/4)*x**3),x)