heres the problem:
converging absolutely or diverging?
I want to say that it diverges, but its said that it is absolutely convergent!
i was givin the hint of: http://img254.imageshack.us/img254/813/50083391wc0.png
however, what happened to the 3^n and also is the hint implying the divergence test?
i'm very new to the ratio test. this may be used here also.