Let a = {x x is a positive integer less than 9}, B = {1,2,3}, C = {3,4,5,6}, then: 1, a intersection B = 2, a intersection C= 3. A-join (b-join C) = 4, a-join (b-join C)=

Let a = {x x is a positive integer less than 9}, B = {1,2,3}, C = {3,4,5,6}, then: 1, a intersection B = 2, a intersection C= 3. A-join (b-join C) = 4, a-join (b-join C)=

1. A intersection B = {1,2,3}
2. A intersection C = {3,4,5,6}
3. A intersection (B and C) = {1,2,3,4,5,6}
4. A-union (b-intersection C) = {1,2,3,4,5,6,7,8}