Integrand size = 19, antiderivative size = 56 \[ \int \frac {1}{(a+b x)^{2/3} (c+d x)^{2/3}} \, dx=\frac {3 \sqrt [3]{a+b x} \sqrt [3]{c+d x} \operatorname {Hypergeometric2F1}\left (\frac {2}{3},1,\frac {4}{3},-\frac {d (a+b x)}{b c-a d}\right )}{b c-a d} \] Output:
3*(b*x+a)^(1/3)*(d*x+c)^(1/3)*hypergeom([2/3, 1],[4/3],-d*(b*x+a)/(-a*d+b* c))/(-a*d+b*c)
Time = 0.02 (sec) , antiderivative size = 71, normalized size of antiderivative = 1.27 \[ \int \frac {1}{(a+b x)^{2/3} (c+d x)^{2/3}} \, dx=\frac {3 \sqrt [3]{a+b x} \left (\frac {b (c+d x)}{b c-a d}\right )^{2/3} \operatorname {Hypergeometric2F1}\left (\frac {1}{3},\frac {2}{3},\frac {4}{3},\frac {d (a+b x)}{-b c+a d}\right )}{b (c+d x)^{2/3}} \] Input:
Integrate[1/((a + b*x)^(2/3)*(c + d*x)^(2/3)),x]
Output:
(3*(a + b*x)^(1/3)*((b*(c + d*x))/(b*c - a*d))^(2/3)*Hypergeometric2F1[1/3 , 2/3, 4/3, (d*(a + b*x))/(-(b*c) + a*d)])/(b*(c + d*x)^(2/3))
Time = 0.16 (sec) , antiderivative size = 72, normalized size of antiderivative = 1.29, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.105, Rules used = {80, 79}
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.
\(\displaystyle \int \frac {1}{(a+b x)^{2/3} (c+d x)^{2/3}} \, dx\) |
\(\Big \downarrow \) 80 |
\(\displaystyle \frac {\left (\frac {b (c+d x)}{b c-a d}\right )^{2/3} \int \frac {1}{(a+b x)^{2/3} \left (\frac {b c}{b c-a d}+\frac {b d x}{b c-a d}\right )^{2/3}}dx}{(c+d x)^{2/3}}\) |
\(\Big \downarrow \) 79 |
\(\displaystyle \frac {3 \sqrt [3]{a+b x} \left (\frac {b (c+d x)}{b c-a d}\right )^{2/3} \operatorname {Hypergeometric2F1}\left (\frac {1}{3},\frac {2}{3},\frac {4}{3},-\frac {d (a+b x)}{b c-a d}\right )}{b (c+d x)^{2/3}}\) |
Input:
Int[1/((a + b*x)^(2/3)*(c + d*x)^(2/3)),x]
Output:
(3*(a + b*x)^(1/3)*((b*(c + d*x))/(b*c - a*d))^(2/3)*Hypergeometric2F1[1/3 , 2/3, 4/3, -((d*(a + b*x))/(b*c - a*d))])/(b*(c + d*x)^(2/3))
Int[((a_) + (b_.)*(x_))^(m_)*((c_) + (d_.)*(x_))^(n_), x_Symbol] :> Simp[(( a + b*x)^(m + 1)/(b*(m + 1)*(b/(b*c - a*d))^n))*Hypergeometric2F1[-n, m + 1 , m + 2, (-d)*((a + b*x)/(b*c - a*d))], x] /; FreeQ[{a, b, c, d, m, n}, x] && !IntegerQ[m] && !IntegerQ[n] && GtQ[b/(b*c - a*d), 0] && (RationalQ[m] || !(RationalQ[n] && GtQ[-d/(b*c - a*d), 0]))
Int[((a_) + (b_.)*(x_))^(m_)*((c_) + (d_.)*(x_))^(n_), x_Symbol] :> Simp[(c + d*x)^FracPart[n]/((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, x], x] /; FreeQ[{a, b, c, d, m, n}, x] && !IntegerQ[m] && !Integ erQ[n] && (RationalQ[m] || !SimplerQ[n + 1, m + 1])
\[\int \frac {1}{\left (b x +a \right )^{\frac {2}{3}} \left (x d +c \right )^{\frac {2}{3}}}d x\]
Input:
int(1/(b*x+a)^(2/3)/(d*x+c)^(2/3),x)
Output:
int(1/(b*x+a)^(2/3)/(d*x+c)^(2/3),x)
\[ \int \frac {1}{(a+b x)^{2/3} (c+d x)^{2/3}} \, dx=\int { \frac {1}{{\left (b x + a\right )}^{\frac {2}{3}} {\left (d x + c\right )}^{\frac {2}{3}}} \,d x } \] Input:
integrate(1/(b*x+a)^(2/3)/(d*x+c)^(2/3),x, algorithm="fricas")
Output:
integral((b*x + a)^(1/3)*(d*x + c)^(1/3)/(b*d*x^2 + a*c + (b*c + a*d)*x), x)
\[ \int \frac {1}{(a+b x)^{2/3} (c+d x)^{2/3}} \, dx=\int \frac {1}{\left (a + b x\right )^{\frac {2}{3}} \left (c + d x\right )^{\frac {2}{3}}}\, dx \] Input:
integrate(1/(b*x+a)**(2/3)/(d*x+c)**(2/3),x)
Output:
Integral(1/((a + b*x)**(2/3)*(c + d*x)**(2/3)), x)
\[ \int \frac {1}{(a+b x)^{2/3} (c+d x)^{2/3}} \, dx=\int { \frac {1}{{\left (b x + a\right )}^{\frac {2}{3}} {\left (d x + c\right )}^{\frac {2}{3}}} \,d x } \] Input:
integrate(1/(b*x+a)^(2/3)/(d*x+c)^(2/3),x, algorithm="maxima")
Output:
integrate(1/((b*x + a)^(2/3)*(d*x + c)^(2/3)), x)
\[ \int \frac {1}{(a+b x)^{2/3} (c+d x)^{2/3}} \, dx=\int { \frac {1}{{\left (b x + a\right )}^{\frac {2}{3}} {\left (d x + c\right )}^{\frac {2}{3}}} \,d x } \] Input:
integrate(1/(b*x+a)^(2/3)/(d*x+c)^(2/3),x, algorithm="giac")
Output:
integrate(1/((b*x + a)^(2/3)*(d*x + c)^(2/3)), x)
Timed out. \[ \int \frac {1}{(a+b x)^{2/3} (c+d x)^{2/3}} \, dx=\int \frac {1}{{\left (a+b\,x\right )}^{2/3}\,{\left (c+d\,x\right )}^{2/3}} \,d x \] Input:
int(1/((a + b*x)^(2/3)*(c + d*x)^(2/3)),x)
Output:
int(1/((a + b*x)^(2/3)*(c + d*x)^(2/3)), x)
\[ \int \frac {1}{(a+b x)^{2/3} (c+d x)^{2/3}} \, dx=\int \frac {1}{\left (d x +c \right )^{\frac {2}{3}} \left (b x +a \right )^{\frac {2}{3}}}d x \] Input:
int(1/(b*x+a)^(2/3)/(d*x+c)^(2/3),x)
Output:
int(1/((c + d*x)**(2/3)*(a + b*x)**(2/3)),x)