- #1
duffman
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Homework Statement
Here is the problem as deployed in the exercise book:
The point is to say if the sequence converges or diverges
an= { (-1)^n*(n+1/n) }
Homework Equations
Bluntly enough: what's the key to finding the result?
The Attempt at a Solution
I tried applying l'Hopital's rule but got lost into oblivion. I tried finding a smaller and bigger sequences (sandwich propriety), couldn't achieve it...
The answer guide says the sequence diverges. Why, and how do you get there?
Thanks,
Pierre-ALexandre.