- #1
Monte_Cristo
- 3
- 0
Homework Statement
Determine whether the infinite series converge or diverge?
∞
∑ 1/{1+n[(ln n)^2]}
n=0
Homework Equations
Direct Comparison test
Limit Comparison test
Root test
Ratio test
integral test
The Attempt at a Solution
Personally, I think that only two methods can work:
1) Manual method - meaning writing down the series and then look at if its converging or diverging.
2) Direct Comparison test - If I compare it directly with the limit of n approaching infinity for 1/n, then my answer comes out to be that the "series diverges
If I use 1/n[(ln n)^2] or else 1/[(ln n)^2] for direct comparison test, I get the same result.
BUT, when I do it the manual way, my answer turns out to be CONVERGENT.
Its so confusing, please help!
Thanks
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