Given n(U) = 20, n(A) = 12, n(B) = 9 , n(A∩B) = 4 , where U is the universal set, A and B are subsets of U then
n(A∪B) =
17
9
11
3
Let A = { 1, 3, 5, 7, 9} and ß = { 3, 4, 5, 6} and
u = { 1, 3, 5, 7, 9}. find ( A-B)
{1,3,5}
{7,9}
{3,5}
{1,7,9}
If n(A) = 3 and n(B) = 6 and A ⊆ B, then the number of elements in A∪B is equal to
6
none of these
Sets A and B have 3 and 6 elements respectively. What can be the minimum number of elements in A∪B ?
18
For any two sets A and B, A ∩ ( AUB) =
A
B
A∩B
AUB
The domain of the function f = {(1,2)(2,3)(3,4)(4,5)} is
{1,2,3,4}
{2,3,4,5}
{1,2,3,5}
The number of subsets of a set containing n elements is
2n - 2
n2
2n
n
(A∪B)' =
A'∪B'
A'∩B'
(A∩B)'
A'∪B
If A∩B = B then
BA
A = Ø
AB
B = Ø
Let U = { 1, 2, 3,4, 5, 6, 7, 8, 9, 10}.
A = {2, 4, 6, 8} and B = { 3, 4, 5, 6}
Find ( AUB)'.
{ 1, 3, 5, 7, 9, 10}
{1, 2, 9, 10}
{7, 9, 10}
{1, 7, 9, 10}
