Question

Am I right that this series cannot be tested by alternative series

Answer 1

this?

Answer 2

the series doesn't exist

Answer 3

I'm having trouble with my internet and the equation button so i'm going to have to write it out. The sum of n=1 to ininity of (-1)^n (n)/n^3+16

Answer 4

if you plug one in for An+1 and An you dont get An+1<An

Answer 5

if you put n=1 into n+1 you get 2/24 and An=1/17

Answer 6

therefore An>An+1

Answer 7

yet my teachers key says otherwise..