`int x^2/((1+x^3)(2+x^3))`dx

If I_1=int_0^1(e^x)/(1+x) dx aand I_2=int_0^1 x^2/(e^(x^3)(2-x^3)) dx then I_1/I_2 is

int ((1+x)^3)/(x^2) dx

Evaluate: int(x^2)/((x-1)^3(x+1))dx

int( x^3)/(x^2-3)dx

Evaluate: int(x^2)/((x-1)^3(x+1))\ dx

int(1+x)^2/(x^3+x)dx

Let l_(1)=int_(0)^(1)(e^(x))/(1+x)dx and l_(2)=int_(0)^(1)(x^(2))/(e^(x^(3))(2-x^(3)))dx. "Then"(l_(1))/(l_(2)) is equal to

int(x^2+x+3)/((x-2)(x+1))dx

int((1+x)^3)/(3sqrt(x^2))dx

int( x^3)/(x^2-2)dx