Hey people, first post here?

I am stuck on a homework problem regarding sequences. Basically: Determine if the sequence {an} converges, and if it does, find its limit when the integral is 1/6x+8 from (n to 8n).

To start off with, I used u-substitution to get 1/6 x ln(u), but the limits of n to 8n are really throwing me off. Also our professor kind of rushed through the section on sequences without much examples. Any feed back is appreciated.

Thanks