How to compute
limn→+∞n−12(1+1n)(11⋅22⋅33⋯nn)1n2
I'm interested in more ways of computing limit for this expression
My proof:
Let unbe that sequence we've:
lnun=−n+12nlnn+1n2n∑k=1klnk=−n+12nlnn+1n2n∑k=1klnkn+1n2n∑k=1klnn=1n2n∑k=1klnkn=1nn∑k=1knlnkn→∫10xlnxdx=−1/4
Therefore the limit is e−14
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