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

The range of the function f(x)=(x^(2)-2)/(x^(2)-3) is

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

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

Range of the function f(x)=(x^(2)-2)/(2x-3) is

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

Range of the function f(x)=(cos^(-1)abs(1-x^(2))) is

The range of the function sin^(-1)((x^(2))/(1+x^(2))) is

Range of the function f(x)=((x-2)^2)/((x-1)(x-3)) is

If the range of the function f(x)= cot^(-1)((x^(2))/(x^(2)+1)) is (a, b), find the value of ((b)/(a)+2) .

Find the domain and range of the function f(x)=(x^2)/(1+x^2) . Is the function one-to-one?