9. `int(dx)/(x^(2)+2x+1)`

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

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

What is int(dx)/(2x^(2)-2x+1) equal to ?

Assertion (A) : int(dx)/(x^(2) + 2x + 3) = (1)/(sqrt(2)) tan^(-1)((x+1)/(sqrt(2))) + c Reason (R) : int(dx)/(x^(2) + a^(2)) = (1)/(a) tan^(-1)((x)/(a)) + c

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

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

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

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

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

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