Question

does the series converge or diverge:
summation from n= 2 to infinity of (-1)/ ln(n)

Answer 1

Are you sure it's not (-1)^n ?

Answer 2

yeah, that's my problem :)

Answer 3

I've got it! Thanks :)

Answer 4

That was fast :)

Answer 5

What did you get?

Answer 6

convergent

Answer 7

by alternating series test

Answer 8

Okay. Nicely done :) (assuming it was a (-1)^n )
If it was just -1, it would be divergent, okay? :)

Answer 9

yes!