Do problems 7 and 11

7. Over the carrier set S two fuzzy sets are defined with their fuzzy membership functions A=(0.1,0.5.0.9,0.2) and B =(0.2, 0.4, 1.0, 0.3). Define the sets obtained after the operations complement, union, and intersection A = B AB= AUB= DD bol 11. Given the concept of "old" by the fuzzy membership function old(s) in a fuzzy reasoning system. How you would define the fuzzy membership function for the concept "not so old