Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Which of the following are examples of the null set?
MATHEMATICS · Multi correct · CBSE · Mathematics · Sets · Sets
Problem
Which of the following are examples of the null set? (i) Set of odd natural numbers divisible by
2
2
2
(ii) Set of even prime numbers (iii)
{
x
:
x
is a natural number
,
x
<
5
and
x
>
7
}
\{x:x\text{ is a natural number},\ x<5\text{ and }x>7\}
{
x
:
x
is a natural number
,
x
<
5
and
x
>
7
}
(iv)
{
y
:
y
is a point common to any two parallel lines
}
\{y:y\text{ is a point common to any two parallel lines}\}
{
y
:
y
is a point common to any two parallel lines
}
Related theory
Sets
Disjoint sets
Empty set
Browse the problem library