The function `f` defined by `f(x)=(x+2)e^(-x)` is

The fucntion f defined by f(x)=(x+2)e^(-x) is

Is the function defined by f(x)=|x|

The function f(x) is defined by f(x) = (x+2)e^(-x) is

The function f:RtoR defined by f(x)=e^(x) is

The domain of the function f defined by f(x)= sqrt(x^(2)-9) is

The function f :R to R defined by f (x) = e ^(x) isd

The function f :R to R defined by f (x) = e ^(x) is

If the function f be defined by f(x) =(2x +1)/(1-3x) , then f ^(-1) (x) is-

If f:[0,oo]toR is the function defined by f(x)=(e^(x^2)-e^(-x^2))/(e^(x^2)+e^(-x^2)), then check whether f(x) is injective or not.