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

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

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

int(x)/(9-4x^(2))dx

int(x)/(9-4x^(2))dx

int(dx)/((9+4x^(2)))dx=?

int(2-x)/(4x^2+4x-3)dx=

Evaluate the following integrals. (i) int 1/((x - 2)^2 + 1)dx " " (ii) int (x^2)/(x^2 + 5)dx " " (iii) int 1/(sqrt(1 + 4x)^2)dx

int(x^2)/(1-x^4)dx

int(x)/(9-4x^2)dx