Question

1. why is the sequence bounded at 3?
2+((-1)^n/n) help please

Answer 1

look for the limit

Answer 2

\[2+\frac{ -1^n }{ n }\le3\]

Answer 3

yes you would need to prove that! formally you need to show
that for any n \(A_n\le 3\)

Answer 4

with the limit as n goes to oo of A_n=3
this shows that all values of A_n do not exceed 3

Answer 5

the limit is 2 when n goes to infinity , okay I understand it now thank you =)

Answer 6

oh yeah right, i thought it was 3

Answer 7

ok so what have you thought about so far?

Answer 8

how do we prove that inequality

Answer 9

I think we prove a set and the set must be bounded

Answer 10

what set?