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AP and TS EAMCET Engineering Model Paper 2
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© examsnet.com
Question : 4
Total: 160
Number of onto functions from a set
A
=
(
x
∈
z
2
≤
x
<
8
)
to the set
B
=
{
a
,
b
}
is
52
30
126
14
Validate
Solution:
n
(
A
)
=
6
,
n
(
B
)
=
2
Number of onto functions
2
n
(
A
)
−
2
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