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Mathematics
Mathematics
Problem
If
n
(
A
)
=
4
n(A) = 4
n
(
A
)
=
4
,
n
(
B
)
=
5
n(B) = 5
n
(
B
)
=
5
and number of functions from
A
A
A
to
B
B
B
such that range contains exactly 3 elements is
k
k
k
,
k
60
\frac{k}{60}
60
k
is .....
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