Maths-
General
Easy
Question
If
is a non-empty set, then which of the following is false?
There is at least one reflexive relation on 
There is at least one symmetric relation on 
alone
alone - Both
and
- Neither
nor
The correct answer is: Neither
nor 
The identity relation on a set
is reflexive and symmetric both. So, there is always a reflexive and symmetric relation on a set
Related Questions to study
Maths-
If a set
contains
elements, then which of the following cannot be the number of reflexive relations on the set 
If a set
contains
elements, then which of the following cannot be the number of reflexive relations on the set 
Maths-General
Maths-
If relation
is defined as :
if
is the father of
Then,
is
If relation
is defined as :
if
is the father of
Then,
is
Maths-General
Maths-
If
then how many subsets of
contain the elements
and 
If
then how many subsets of
contain the elements
and 
Maths-General
Maths-
If
and
then the minimum possible value of
is
If
and
then the minimum possible value of
is
Maths-General
Maths-
Let
be a relation on the set
of natural numbers defined by
is a factor of
Then,
is
Let
be a relation on the set
of natural numbers defined by
is a factor of
Then,
is
Maths-General
Maths-
If
then the maximum number of elements in any relation on
is
If
then the maximum number of elements in any relation on
is
Maths-General
Maths-
If
and
then
is equal to
If
and
then
is equal to
Maths-General
Maths-
Let
be the set of all engineering colleges in a state of Indian Republic and
be a relation on
defined as two colleges are related iff they are affiliated to the same university, then
is
Let
be the set of all engineering colleges in a state of Indian Republic and
be a relation on
defined as two colleges are related iff they are affiliated to the same university, then
is
Maths-General
Maths-
Let
and
be the sets of all positive divisors of 400 and 1000 respectively (including 1 and the number). Then,
is equal to
Let
and
be the sets of all positive divisors of 400 and 1000 respectively (including 1 and the number). Then,
is equal to
Maths-General
Maths-
Let
. The total number of unordered pairs of disjoint subsets of
is equal to
Let
. The total number of unordered pairs of disjoint subsets of
is equal to
Maths-General
Maths-
If
then the number of elements in the set
is
If
then the number of elements in the set
is
Maths-General
Maths-
For any three sets
let
and
then which one of the following statement is always true
For any three sets
let
and
then which one of the following statement is always true
Maths-General
Maths-
If
and
then the greatest possible value of
is
If
and
then the greatest possible value of
is
Maths-General
Maths-
Let
be a relation from a set
to a set
then
Let
be a relation from a set
to a set
then
Maths-General
Maths-
In a town of
families
it was found that 40% families buy newspaper
families buy newspaper
and 10% families buy newspaper
families buy
and
3% buy
and
and 4% buy
and
If 2% families buy all the three newspapers, then the number of families which buy
only is
In a town of
families
it was found that 40% families buy newspaper
families buy newspaper
and 10% families buy newspaper
families buy
and
3% buy
and
and 4% buy
and
If 2% families buy all the three newspapers, then the number of families which buy
only is
Maths-General