Relation on Cartesian Product Elements (Jee Mains) | ExamDuo
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Permutations
Hard
Relation on Cartesian Product Elements
Let
A
=
{
1
,
2
,
3
,
4
}
and
R
be a relation on the set
A
×
A
defined by
R
=
{
(
(
a
,
b
,
(
c
,
d
)
:
2
a
+
3
b
=
4
c
+
5
d
}
. Then the number of elements in
R
is ________
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