The function f f\,f is defined by
f(x)=x2+2x+1,x∈R,x≥−1 f(x) = x^2 + 2x + 1, \quad x \in \mathbb{R}, x \geq -1 f(x)=x2+2x+1,x∈R,x≥−1State the range of fff
Sketch the graphs of f(x)f(x)f(x) and f−1(x)f^{-1}(x)f−1(x) on the same diagram
Find an expression for f−1(x)f^{-1}(x)f−1(x) and state its domain