Using Haskell

(6= 3 * 2 points) Let's re-implement the foldl function in multiple ways. Your foldl only needs to work on lists. a. b. Write a definition for foldl using conditional expressions: foldlifax= if x== [ ] then etc. Rewrite the definition using function definition by cases: foldl2 ... Rewrite the definition using a case expression: foldl3 fax = case x .... C. (6= 3 * 2 points) Let's re-implement the foldl function in multiple ways. Your foldl only needs to work on lists. a. b. Write a definition for foldl using conditional expressions: foldlifax= if x== [ ] then etc. Rewrite the definition using function definition by cases: foldl2 ... Rewrite the definition using a case expression: foldl3 fax = case x .... C