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October 24th, 2016, 10:11 AM   #1
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help me find a limit of seq

Hey,
maybe someone could help me find a limit of:
$\displaystyle \lim \sum _{k=1}^n\:\frac{\left(k-1\right)}{k!}$

I have been trying to solve this for hours and due date is creeping on me!
I will appreciate any help. I am desperate
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August 7th, 2017, 09:07 PM   #2
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The sum is 1 - 1/n!, which tends to 1.
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