`int x^2/(p+qx)^2`dx

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

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

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

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

int x sin^2(x/2) dx

int(x^2dx)/(4+x^2)

To find the numberical value of overset(2)underset(-2)int (px^(3)+qx+s)dx it is necessary to know the values of teh constants:

int 2/x dx

int (x^(2))/(x^(2) +4) dx=?

Evaluate: ("lim")_(xvecoo)((int0xe^x^2dx)^2)/(int0x e^(2x)^2dx)