Let Upper U equals StartSet 1 comma 2 comma 3 comma 4 comma 5 comma 6 comma 7 EndSet

U={1,2,3,4,5,6,7}, Upper A equals StartSet 2 comma 3 comma 5 comma 6 EndSet

A={2,3,5,6}, and Upper B equals StartSet 3 comma 4 comma 5 EndSet

B={3,4,5}. Find the set left parenthesis Upper A union Upper B right parenthesis '

(AB)'.