Question

U= (1,2,3,4,5,6,7,8,9)

A=(1,2,5,6)
B=(2,3,4,6,7)
C=(5,6,7,8
Find (B’ n A) u c

Answer 1

`(B'\cap A)\cup C=\{1,5,6,7,8\}`

Explanation:

`B'=\{1,5,8,9\}`

`(B'\cap A)=\{1,5\}`

`(B'\cap A)\cup C=\{1,5,6,7,8\}`

The complement of a set, notated with a prime symbol ('), are all other elements that are not in that set.

The intersection of two sets, notated by
`\cap`, are just the elements that are contained in both sets.

The union of two sets, notated by
`\cup`, are all the elements that are contained in both sets (any duplicates are not included).