Integrand size = 19, antiderivative size = 58 \[ \int \frac {1}{\sqrt [3]{a+b x} \sqrt [3]{c+d x}} \, dx=\frac {3 (a+b x)^{2/3} (c+d x)^{2/3} \operatorname {Hypergeometric2F1}\left (1,\frac {4}{3},\frac {5}{3},-\frac {d (a+b x)}{b c-a d}\right )}{2 (b c-a d)} \] Output:
3*(b*x+a)^(2/3)*(d*x+c)^(2/3)*hypergeom([1, 4/3],[5/3],-d*(b*x+a)/(-a*d+b* c))/(-2*a*d+2*b*c)
Time = 0.02 (sec) , antiderivative size = 73, normalized size of antiderivative = 1.26 \[ \int \frac {1}{\sqrt [3]{a+b x} \sqrt [3]{c+d x}} \, dx=\frac {3 (a+b x)^{2/3} \sqrt [3]{\frac {b (c+d x)}{b c-a d}} \operatorname {Hypergeometric2F1}\left (\frac {1}{3},\frac {2}{3},\frac {5}{3},\frac {d (a+b x)}{-b c+a d}\right )}{2 b \sqrt [3]{c+d x}} \] Input:
Integrate[1/((a + b*x)^(1/3)*(c + d*x)^(1/3)),x]
Output:
(3*(a + b*x)^(2/3)*((b*(c + d*x))/(b*c - a*d))^(1/3)*Hypergeometric2F1[1/3 , 2/3, 5/3, (d*(a + b*x))/(-(b*c) + a*d)])/(2*b*(c + d*x)^(1/3))
Time = 0.16 (sec) , antiderivative size = 74, normalized size of antiderivative = 1.28, 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.
\(\displaystyle \int \frac {1}{\sqrt [3]{a+b x} \sqrt [3]{c+d x}} \, dx\) |
\(\Big \downarrow \) 80 |
\(\displaystyle \frac {\sqrt [3]{\frac {b (c+d x)}{b c-a d}} \int \frac {1}{\sqrt [3]{a+b x} \sqrt [3]{\frac {b c}{b c-a d}+\frac {b d x}{b c-a d}}}dx}{\sqrt [3]{c+d x}}\) |
\(\Big \downarrow \) 79 |
\(\displaystyle \frac {3 (a+b x)^{2/3} \sqrt [3]{\frac {b (c+d x)}{b c-a d}} \operatorname {Hypergeometric2F1}\left (\frac {1}{3},\frac {2}{3},\frac {5}{3},-\frac {d (a+b x)}{b c-a d}\right )}{2 b \sqrt [3]{c+d x}}\) |
Input:
Int[1/((a + b*x)^(1/3)*(c + d*x)^(1/3)),x]
Output:
(3*(a + b*x)^(2/3)*((b*(c + d*x))/(b*c - a*d))^(1/3)*Hypergeometric2F1[1/3 , 2/3, 5/3, -((d*(a + b*x))/(b*c - a*d))])/(2*b*(c + d*x)^(1/3))
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])
\[\int \frac {1}{\left (b x +a \right )^{\frac {1}{3}} \left (x d +c \right )^{\frac {1}{3}}}d x\]
Input:
int(1/(b*x+a)^(1/3)/(d*x+c)^(1/3),x)
Output:
int(1/(b*x+a)^(1/3)/(d*x+c)^(1/3),x)
\[ \int \frac {1}{\sqrt [3]{a+b x} \sqrt [3]{c+d x}} \, dx=\int { \frac {1}{{\left (b x + a\right )}^{\frac {1}{3}} {\left (d x + c\right )}^{\frac {1}{3}}} \,d x } \] Input:
integrate(1/(b*x+a)^(1/3)/(d*x+c)^(1/3),x, algorithm="fricas")
Output:
integral((b*x + a)^(2/3)*(d*x + c)^(2/3)/(b*d*x^2 + a*c + (b*c + a*d)*x), x)
\[ \int \frac {1}{\sqrt [3]{a+b x} \sqrt [3]{c+d x}} \, dx=\int \frac {1}{\sqrt [3]{a + b x} \sqrt [3]{c + d x}}\, dx \] Input:
integrate(1/(b*x+a)**(1/3)/(d*x+c)**(1/3),x)
Output:
Integral(1/((a + b*x)**(1/3)*(c + d*x)**(1/3)), x)
\[ \int \frac {1}{\sqrt [3]{a+b x} \sqrt [3]{c+d x}} \, dx=\int { \frac {1}{{\left (b x + a\right )}^{\frac {1}{3}} {\left (d x + c\right )}^{\frac {1}{3}}} \,d x } \] Input:
integrate(1/(b*x+a)^(1/3)/(d*x+c)^(1/3),x, algorithm="maxima")
Output:
integrate(1/((b*x + a)^(1/3)*(d*x + c)^(1/3)), x)
\[ \int \frac {1}{\sqrt [3]{a+b x} \sqrt [3]{c+d x}} \, dx=\int { \frac {1}{{\left (b x + a\right )}^{\frac {1}{3}} {\left (d x + c\right )}^{\frac {1}{3}}} \,d x } \] Input:
integrate(1/(b*x+a)^(1/3)/(d*x+c)^(1/3),x, algorithm="giac")
Output:
integrate(1/((b*x + a)^(1/3)*(d*x + c)^(1/3)), x)
Timed out. \[ \int \frac {1}{\sqrt [3]{a+b x} \sqrt [3]{c+d x}} \, dx=\int \frac {1}{{\left (a+b\,x\right )}^{1/3}\,{\left (c+d\,x\right )}^{1/3}} \,d x \] Input:
int(1/((a + b*x)^(1/3)*(c + d*x)^(1/3)),x)
Output:
int(1/((a + b*x)^(1/3)*(c + d*x)^(1/3)), x)
\[ \int \frac {1}{\sqrt [3]{a+b x} \sqrt [3]{c+d x}} \, dx=\int \frac {1}{\left (d x +c \right )^{\frac {1}{3}} \left (b x +a \right )^{\frac {1}{3}}}d x \] Input:
int(1/(b*x+a)^(1/3)/(d*x+c)^(1/3),x)
Output:
int(1/((c + d*x)**(1/3)*(a + b*x)**(1/3)),x)