How to calculate the no of the following from a set (1,2,3,......n) to itself?
1.one-one function
2.onto function
3.binary operation

Asked by Ajnu C S | 1st May, 2014, 01:47: PM

Expert Answer:

1. The number of one-one functions possible are n!.
 
For first element has n choices and second has n-1 and so on.
 
2. The number of onto functions possible are nn.
 
every element in the co-domain has n choices.
 
3. The number of binary operations possible are (n)^n2

Answered by Avinash Soni | 4th May, 2014, 09:52: AM

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