Can anyone tell me how to find limit superior of $\{(-1)^n/2^n : n = 1, 2, ... \}$
I separated the sequences and my answer is coming out to be 1/3. But options are $$ 1 \\ 0\\ -1 \\ 1/4 $$
2026-04-28 19:20:40.1777404040
Limit superior, sequence and series
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Guide:
The sequence converges, when a sequence converges, you just have to find its limit and it is equal to the limit superior.