do questions 12 and 13 in sml language

e cube Exercise 12 Write a function pow of type real + int -> real that raises a real number to an integer power. Your function need not behave well if the integer power is negative. the than Exercise 13 Write a function max of type int list -> int that returns the largest element of a list of integers. Your function need not behave well if the list is empty. Hint: Write a helper function maxhelper that takes as a second parameter the largest element seen so far. Then you can complete the exercise by defining fun max x - maxhelper (tl x, hd x)