f : N --> N defined by f(x) = x^3 - 1
Hi all, I need answers and EXPLANATION to the following problems: (Please Help!)
(i) f : N --> N defined by f(x) = x^3 - 1
(ii) g : Z --> Z defined by g(x) = 2x + 1
(iii) h : R --> R defined by h(x) = x(x + 3)(x - 3)
(***note that N,Z,R stands for...