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Question Number 9790 by tawakalitu last updated on 04/Jan/17
prove by mathematical induction  n! ≤ n^n
provebymathematicalinductionn!nn
Commented by FilupSmith last updated on 04/Jan/17
n=1  1!≤1^1     n=2  2!≤2^2   2≤4    (n+1)!≤(n+1)^(n+1)   (n+1)∙n!≤(n+1)^(n+1)   n!≤(n+1)^n   1×2×...×n_(n times) ≤(n+1)×...×(n+1)_(n times)   ∀k∈(1,n), (n+1)>k
n=11!11n=22!2224(n+1)!(n+1)n+1(n+1)n!(n+1)n+1n!(n+1)n1×2××nntimes(n+1)××(n+1)ntimesk(1,n),(n+1)>k
Commented by tawakalitu last updated on 05/Jan/17
Thank you sir. God bless you.
Thankyousir.Godblessyou.
Commented by tawakalitu last updated on 05/Jan/17
Thank you sir. God bless you.
Thankyousir.Godblessyou.

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