of s. The powerset of set s is a set containing all subsets 11.1 (10 points) Write a recursive function powerset that returns a set containing all subsets of a given set. Use direct recursion and list comprehension. powerset :: Set a -> Set (Set a) 11.2 (15 points) Write your answer for this question in a block comment following the definition of function powerset. Explain carefully step-by-step the workings of your powerset function invoked with the two inputs: (1) [3,2,4] and (2) "how"