Which one of the following is a finite set?
{x : x Z, x < 5}
{x : x W, x ≥ 5}
{x ; x N, x > 10}
{x : x is an even prime number}
Which of the following statements are true?i) For any set A, A is a proper subset of Aii) For any set A, is a subset of Aiii) For any set A, A is a subset of A
(i) and (ii)
(ii) and (iii)
(i) and (iii)
(i), (ii) and (iii)
Which one of the following is incorrect?
Every subset of a finite set is finite
P ={x : x-8 = -8} is a singleton set
Every set has a proper subset
Every non-empty set has at least two subsets. and the set itself.
If A = {3,4,5,6} and B = {1,2,3,5,6}, then =
{1,2,3,4,5,6}
{1,2,3,4,6}
{1,2,5,6}
{3,4,5,6}
Given A = {5,6,7,8}. Which one of the following is incorrect?
Φ A
{7,8,9}
{5}
Which of the following is a correct statement?
Φ {a,b}
{a,b}
{a} {a,b}
a {a,b}
Given A and B are sets and A - B = A, then
A and B are disjoint sets
A and B are over lapping sets
B is a subset of A
A is the subset of B
The number of elements of the set{x : x Z, x2 = 1} is
3
2
1
0
If a finite set A has m elements, then the number of non-empty proper subsets of A is
2m
2m -1
2m-1
2(2m-1-1)
If A = {1,{5,6},4}. Which of the following is correct?
{5,6} A
{5} A
{7} A
{6} A
