- #1
donald1403
- 16
- 0
Homework Statement
[tex]
\sum_{n = 2}^{\infty} \frac{1}{n*ln(n)}
[/tex]
I have to find whether the series absolute converge, conditionally converge or diverge?2. The attempt at a solution
I used the ratio test.
so, lim(n to infinity) [n*ln(n)]/[(n+1)*ln(n+1)]
since ln (n+1) will be greater than ln (n) and n+1 will be greater than n, the whole denominator will be greater than the numerator so when i take the limit, the value must be less than 1.
but i think i have cancel n or ln(n) to show that the whole limit is really less than 1 to converge.
help!
i m sorry . i dun know how to use the latex code..