Limits yet again

limit n-n2{(n+1)(n+1/2)(n+1/22)...(n+1/2n)}
n→∞

2 Answers

1
injun joe ·

e2. I did this some time before

1
Unicorn--- Extinct!! ·

This can be written as
[{(n+1)(n+1/2)...(n+1/2n-1)}/nn]n

=[(1+1/n)(1+1/2n).....(1+1/2n-1n)]n (1∞ form)

=e1.e1/2e1/4.....e1/2n-1....∞
=e2

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