The range of the function `f(x)=x^2+1/(x^2+1)` is

Find the range of the function f(x) = x^2 + 1/(x^2 + 1) .

The range of the function f(x) = (x^2 -x+1)/(x^2 +x+1) where x in R , is

Find the range of the function f(x)=(1+x^2)/(x^2)

The range of the function f(x)=(x^(2)-x+1)/(x^(2)+x+1) where x in R, is

Range of the function f(x) = (1-x^2)/(1+x^2) is

The range of the function f(x)=(x^2-x+1)/(x^2+x+1) where x , in R is a) (-infty, 3] b) (-infty, infty) c) [3, infty) d) [1/3,3]

The range of the function f(x)=(x^(2)-1)/(x^(2)+4) is