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

int_1^2 (dx)/(x(1+x^2))

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

Find int(2*dx)/((1-x)(1+x^(2)))

Find int(2*dx)/((1-x)(1+x^(2)))

int_(1)^(2) (dx)/(x(1+log x)^(2))

int_(1)^(2) (dx)/(x(1+log x)^(2))

(i) int((x^(2) - 1)/(x^(2) + 1))dx , (ii) int ((x^(6)- 1)/(x^(2) + 1))dx (iii) int ((x^(4))/(1+x^(2)))dx , (iv) int((x^(2))/(1+x^(2)))dx

Evaluate int_(1)^(2)(dx)/(x(1+x^(2)))

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

Evaluate : int (dx)/((2x+1)(x^(2)+4))