Let f:NrarrN in such that f(n+1)gtf(f(n...

Let `f:NrarrN ` in such that `f(n+1)gtf(f(n))` for all `n in N` then

A

`f(x)=n^(2)-n+1`

B

f(x)=n-1

C

`f(x)=n^(2)+1`

D

none of the above

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The correct Answer is:

D

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