- #1
vande060
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Homework Statement
determine whether or not the sequence converges of diverges. If it converges, find the limit.
an = ((-1)n-1n)/(n2 + 1)
Homework Equations
I have a feeling this theorem is usedif lim n->∞ |an| = 0, then lim n->∞ an = 0
The Attempt at a Solution
I don't really know where to start on this one, I thought about using L'Hospital for this, but I don't know how to do exponential derivatives without taking a log, and I don't remember the teacher ever doing that in class when looking at this variety of problem