2. Given: c = [4] d = [2, 3, 4] Implement an append function which returns the result of the operation as follows: [4,2,3,4]

Hint: One argument of the append function on one of its lines may be a call to the append function itself.

This is a Haskell question. The function should be written in Haskell programming language and should print [4,2,3,4].