If `f(x)=1/(x^2+x+1)`, then the function `f :R rarr R ` is

The function f:R rarr R, f(x)=x^(2) is

The function f:R rarr R, f(x)=x^(2) is

Function f:R rarr R,f(x)=x|x| is

Range of the function f: R rarr R, f(x)= x^(2) is………

If the function f:R rarr R be such that f(x)=sin(tan^(- 1) x), then inverse of the function f(x) is

If the function f:R rarr R be such that f(x)=sin(tan^(-1)x) then inverse of the function f(x) is

If the function f:R rarr R be such that f(x)=sin(tan^(-1)x) then inverse of the function f(x) is

If the function f:R rarr R be such that f(x)=sin(tan^(-1)x) then inverse of the function f(x) is

If the function f:R rarr R be such that f(x)=sin(tan^(-1)x) then inverse of the function f(x) is

If f:R rarr R is a function f(x)=x^(2)+2 and g:R rarr R is a function defined as g(x)=(x)/(x-1), then (i) fog (ii) go f