- #1
banshee43
- 15
- 0
Homework Statement
Can you if given a sigma notation for an infinite series
Ʃ 2^n/(4^n+1)
rewrite as,
Ʃ 2^n/(4^n+1^n)
then doing the root test can you
lim n→∞ n^√abs((2/(4+1))^n)
which equals 2/5, and
2/5<1, therefore can i conclude that the series above converges?
Sorry if this is in the wrong section, i guess its more of an algebra question.