Chapter 2 - Set Theory - 2.4 Set Operations and Venn Diagrams with Three Sets - Exercise Set 2.4 - Page 92: 38

(BUC)'= {1,2,3,13}

The set (BUC)', represents the all the elements of the universal set U which are not present in BUC From the given Venn diagram we can conclude that the regions I and VIII are not represent the set (BUC). So the regions I and VIII belongs to (BUC)'. The element of these regions are 1,2,3,13 So, (BUC)'= {1,2,3,13}