{6n cos (n*pi)}

Question

{6n cos (n*pi)}

anonymous · Answer

Determine whether the sequence converges or diverges. If it converges, find the limit

anonymous · Answer

$$a_n= 6n \cos(n*\pi)$$

anonymous · Answer

freckles!

freckles · Answer

Isn't this the same sequence from the other day?

anonymous · Answer

im always happy to see your on! anyway, I know that cos oscillates between -1 and 1. just like we discussed the other day. what I dont get is how multiplication changes the answer here

anonymous · Answer

i dont think so, cuz this is a new assignment.. unless he is tripping me up

freckles · Answer

it doesn't 
it still oscillates except it ocsillates between -inf and inf

freckles · Answer

http://openstudy.com/users/jlockwo3#/updates/54e14dfae4b07f4a24c03fdc

anonymous · Answer

OMG! He is tripping me up! .... wow.  I guess something about this question gets me

anonymous · Answer

did we go over one with ln in it too?

freckles · Answer

I don't recall that but I definitely recall this one :p

anonymous · Answer

ok. Im gonna post the ln one then, because i can just look back at what we talked about with this one later