DFAs Exercise 1. Let 2- (a, b}. Show the following sets are regular (draw a DFA). 2. aa m>n0) 3. ww begins with a and ends in by 4. (w the third symbol of w is a 5. w w starts with a and has odd length or starts with b and has even length 6. w every odd position of w is an a) 7. ww contains an even number of a or exactly two b 8. w w is any string except aa and aaa) 9. {w w contains neither the substrings ab nor ba) 10. w does not end in aab 11. {xyl r,y and contains more a's than y)