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}
Let A = {1,2,3,4}, then total number of subsets of A =
4
8
12
16
If f = {(6,3), (8,4), (5,3), (-1, 6)} then the pre-image of 3 are.
S and -1
6 and 8
8 and -1
6 and 5
If A is any set, then.
A A' = φ
A A' = U
A∩A' = U
None f these
If A,B,C are three sets, then A∩ (BC) is equal to.
(AB) ∩ (AC)
(A∩B) (A∩C)
AB) (AC)
None of these
For any two sets P and Q, P∩Q is.
{x:x P or x Q}
{ x;xPand xQ}
{x:xP and x Q}
x:x P and x Q}
If A and B be any two sets, then (A∩B)' is equl to
A'∩B'
A' B'
A∩B
A B
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}
Two sets A and B are said to be _________ if n(A) = n(B).
Equal
Equivalent
Same
None
If a set A has n elements, then the total number of subsets of A is.
n
n2
2n
