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Let A={1,2,3,4,5} and f:A rarr A be an i...

Let `A={1,2,3,4,5}` and `f:A rarr A` be an into function such that `f(x) nex forall x in A`. Then number of such functions `f` is:

A

(a) `1024`

B

(b) `904`

C

(c) `980`

D

(d) None of these

Text Solution

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The correct Answer is:
C
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