[" Let "f(x)=(x-1)/(x^(2))" .Then which of the "],[" following is correct? "]

Let f(x)=(x-1)/(x^(2)), then which of the following is incorrect?

If f(x)=(x)/(x^(2)-1), then which of the following is/are correct-

Let x_(1) 0 then which of the following are correct

Let f(x)=tan^(-1)((sqrt(1+x^(2))-1)/(x)) then which of the following is correct :

Let f(x)=tan^(-1)((sqrt(1+x^(2))-1)/(x)) then which of the following is correct :

Let f(x)=tan^(-1)((sqrt(1+x^(2))-1)/(x)) then which of the following is correct :

Let f(x)=x+(1)/(x) when x in (0,1) Then which one of the following is correct ?

if f(x)=|1-x|,1<=x<=2, and g(x)=f(x)+b sin((pi x)/(2)) then which of the following is correct

Let A = IR- {3}, B = IR - {1} and let f: A to B be defined by f(x) = ( x- 2)/(x - 3) .Then which of the following is not true?