The set of intelligent students in a class is .
A null set
A singleton set
A finite set
Not a well defiend collection
Two sets A and B are said to be _________ if n(A) = n(B).
Equal
Equivalent
Same
None
If A = {1,2,3} and B = z{1,3,5,7} then A B.
{1,3,5,7}
{1,2,3,5,7}
{1,2,3,7}
None of these
If A, B and C are any three sets, then A× (BUC) is equal to
(A×B) U (A × C)
(AUB) × (AUC)
(A × B) ∩ (A × C)
Given A = {1,2,3}, B = {3,4}, C = {4,5,6}, then A U (B∩C) is.
{3}
(1,2,3,4}
{1,2,4,5}
{1,2,3,4,5,6}
If A is any set, then.
A A' = φ
A A' = U
A∩A' = U
None f these
Let A and B be two sets such that n(A)= 70, n(B) = 60 and n(AυB) = 110. Then n(A∩B) is equal to.
240
20
100
120
Let A = {1,2,3,4}, then total number of subsets of A =
4
8
12
16
If A = {2,4,5}, B = {7,8,9}, then n(A × B) is equal to.
6
9
3
0
If A = {1,2,3,4}, B = {4,5,6,7}, then A∩B is
{1,2,3,4}
{6,7}
{1,2}
{4}