Q5 of 162 Page 1

Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9}, A = {1, 2, 3, 4}, B = {2, 4, 6, 8} and C = {3, 4, 5, 6}. Find:

(A∪B)’

A ∪ B = {x: x ϵ A or x ϵ B}


= {1, 2, 3, 4, 6, 8}


(A∪B)’ means Complement of (A∪B) with respect to universal set U.


So, (A∪B)’ = U – (A∪B)’


U – ( A∪B)’ is defined as {x ϵ U : x ∉ (A∪B)’}


U = {1, 2, 3, 4, 5, 6, 7, 8, 9}


(A∪B)’ = {1, 2, 3, 4, 6, 8}


U – ( A∪B)’ = {5, 9}


More from this chapter

All 162 →
5

Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9}, A = {1, 2, 3, 4}, B = {2, 4, 6, 8} and C = {3, 4, 5, 6}. Find:

B’

 5

Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9}, A = {1, 2, 3, 4}, B = {2, 4, 6, 8} and C = {3, 4, 5, 6}. Find:

(A ∩ C)’

 5

Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9}, A = {1, 2, 3, 4}, B = {2, 4, 6, 8} and C = {3, 4, 5, 6}. Find:

(A’)’

 5

Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9}, A = {1, 2, 3, 4}, B = {2, 4, 6, 8} and C = {3, 4, 5, 6}. Find:

(B – C)’