Which of the following statement is true?
Which of the following is a subset of every set?
empty set
set of natural numbers
set of rational numbers
set of whole numbers
If A = {1, 2, 3} and B = {1, 3, 5, 7}, then A U B =
{1, 3, 5, 7}
{1, 2, 3, 5, 7}
{1, 2, 3, 7}
None of these
Two sets A and B are disjoint if
A U B = Ø
A U B = B
A ∩ B = A
A ∩ B = Ø
Find the odd one.
The collection of good cricket players of India is a set
The collection of difficult topics in mathematics is a set
The collection of most talented writers of India is a set
A collection of vowels in English alphabets is a set.
Set of all factors of 1200
Set of all multiplies of 3 which is less than 99.
Set of perfect square number which is less than 121.
Set of all natural numbers greater than 1000.
If P = { 1, 2, 3, 4, 5} and Q = {4, 5, 6, 7} then P - Q is
{1, 2, 3, 4, 6, 7}
{1, 2, 3, -6, -7}
{1, 2, 3}
{4, 5}
If A = { 1,3, 5, 7, 9, 11}, the cardinal number of A = ------
6^{2}
6
3
5
(A U B) U C = A U (B U C ) , the property used here is
Commutative
Associative
Law of identity
Idempotent law