Since
(-1)^n / n converges, so does this one.
n^3/(n^4+1) < 1/n
Series converges? or diverges? Which test? explain?
(-1)^n * (4n^3)
------------(fraction)
(n^4) + 1
1 answer
(-1)^n * (4n^3)
------------(fraction)
(n^4) + 1
1 answer