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# How to prove (n!)^(-1/n) is null sequence?

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1. .....
2. Note that n/2, n/2+1,..., n are all >= n/2.
3. (Original post by DFranklin)
Note that n/2, n/2+1,..., n are all >= n/2.
I tried this with sandwich rule. But it only lead me between 0 and 1
4. Try harder.
5. (Original post by DFranklin)
Try harder.
Thank u. I did it wrong at the beginning.

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