# A={1,2,3,4,5,6};How many bijective functions #f:A->A#have the property that #f(1)!=2#?

##### 1 Answer

Mar 26, 2017

#### Explanation:

A bijective function from a finite set to itself is a permutation.

There are a total of

So the answer is:

#6!*(5/6) = 5!*5 = 120*5 = 600#