HARD
JEE Main/Advance
IMPORTANT
Earn 100

For means that is a factor of then relationis
(a)Reflexive
(b)symmetric
(c)Transitive
(d)Equivalence

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Important Questions on Set Theory and Relations
MEDIUM
JEE Main/Advance
IMPORTANT
Let and be two sets. Then

HARD
JEE Main/Advance
IMPORTANT
Consider the following relations:
are real numbers and for some rational number
and are integers such that and
Then

HARD
JEE Main/Advance
IMPORTANT
Let be the set of real numbers.
Statement- is an integer} is an equivalence relation on
Statement- for some rational number is an equivalence relation on

HARD
JEE Main/Advance
IMPORTANT
Consider the following relation , on the set of real square matrices of order .
, for some invertible matrix .
Statement - , is equivalence relation.
Statement - For any two invertible matrices and

HARD
JEE Main/Advance
IMPORTANT
Two sets and , are as under and ; . Then.

HARD
JEE Main/Advance
IMPORTANT
Let be the set of integers. If and then the
number of subsets of the set , is

EASY
JEE Main/Advance
IMPORTANT
Let The number of non-empty subsets of such that the product of elements in is even, is

MEDIUM
JEE Main/Advance
IMPORTANT
Let and be two sets. Then,
