SOLUTION: Prove that (n+1)! >2 n for all n>1.

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Question 1052627: Prove that (n+1)2 n for all n>1.
Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
if n = k+1 (k > 1), we have that
:
(k+1) 2(k+1)
:
we have to prove that
:
(k+2) 2(k+2)
:
(k+2)! = (k+2)(k+1) (k+2)2(k+1) (since (k+1) 2(k+1))
:
this implies that
:
(k+2) 2(k+2)