Let `f(x) = (x^(2))/((1+x^(2))` .Then range (f ) =?

Let f(x) =(1)/((1-x^(2)) . Then range (f )=?

Let R be the set of real numbers and let f:RtoR be a function such that f(x)=(x^(2))/(1+x^(2)) . What is the range of f?

If f (x) =(x^(2))/(1+x^(2)), then the range of f is -

let f(x)=cos^(-1)((x^(2))/(1+x^(2))) the range of f is

Let f(x)=cos^(-1)((x^2)/(1+x^2)) . The range of f is a) [0,pi/2] b) [-pi/2,pi/2] c) [-pi/2,0] d)None of these

Let f:RtoR be defined as f(x)=(x^(2)-x+4)/(x^(2)+x+4) . Then the range of the function f(x) is

If f(x)= x^2/(1+x^2) then the range of f is

Let f:R rarr R be defined as f(x)=(x^(2)-x+4)/(x^(2)+x+4). Then the range of the function f(x) is

Let f : R to R be defined as f(x) = (x^2-x+4)/(x^2+x+4) . Then the range of the function f(x) is

Let f(x)= cos^(-1)((x^(2))/(x^(2)+1)) . Then , the range of the f , is