Bijective Functions Condition (Jee Mains) | ExamDuo
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Permutations
Hard
Bijective Functions Condition
SECTION-B
Let
A
=
{
0
,
1
,
2
,
3
,
4
,
5
,
6
,
7
}
.
Then the number of bijective functions
f
:
A
→
A
such that
f
(
1
)
+
f
(
2
)
=
3
−
f
(
3
)
is equal to
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