Chapter 2 - Set Theory - 2.3 Venn Diagrams and Set Operations - Exercise Set 2.3 - Page 81: 61

A ∪ U = {a,b,c,d,e,f,g,h}

U = {a,b,c,d,e,f,g,h} A = {a,g,h} The set A ∪ U represents all the elements of set A and elements of set U that are not present in 'A'. The elements of U that are not in A are b,c,d,e,f. The elements of A ∪ U are a,b,c,d,e,f,g,h. Therefore set A ∪ U = {a,b,c,d,e,f,g,h}