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NIMCET 2015 Question Paper with solutions
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© examsnet.com
Question : 28
Total: 120
The number of one-to-one functions from {1, 2, 3} to {1, 2, 3, 4, 5} is;
125
243
10
60
Validate
Solution:
Let A ={12.3} and B ={1,2,3 4,5}
∴ Number of one-to-one function is
5
P
3
=
5
!
2
!
=
60
© examsnet.com
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