Let `f:R rarr R` be defined by `f(x)=(x)/(x^(2)+1)` Then `(fof(1)` equals

5.Let f:R rarr R be defined by f(x)=x^(2)-1 .Then find fof (2)

f:R rarr R defined by f(x)=(x)/(x^(2)+1),AA x in R is

If f:R rarr R is defined by f(x)=x/(x^2+1) find f(f(2))

f:R rarr R defined by f(x)=(x^(2)+x-2)/(x^(2)+x+1) is

f:R rarr R defined by f(x)=(x^(2)+x-2)/(x^(2)+x+1) is:

Let f:R rarr R be defined by f(x)=In(x+sqrt(x^(2)+1)), then number of solutions of |f^(-1)(x)|=e^(-|x|) is :

Let f:R rarr R be defined by f(x) = x^(2) +1 Then, find pre-images of 17 and - 3.

Let f: R rarr R be defined as f(X) = 3x. Then

Let f:R rarr R, be defined as f(x)=e^(x^(2))+cos x, then f is a