_Functions in mathematics and Haskell._

Suppose \\(f : Int \to Int \\) sends an integer to its square, \\(f(x) := x^2 \\) and that \\(g : Int \to Int \\) sends an integer to its successor, \\(g(x) := x+ 1\\).

(a) Write \\(f \\) and \\(g \\) in Haskell, including their type signature and their implementation.

(b) Let \\(h := f◦g \\). What is \\(h(2) \\)?

(c) Let \\(i := f ; g \\). What is \\(i(2) \\)?