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 $$ 1 \\ 0\\ -1 \\ 1/4 $$
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$\begingroup$ Please use MathJax. $\endgroup$– user546997Commented Apr 18, 2018 at 2:52
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$\begingroup$ try to include as much info you can especially your own working. It is hard to find out what is wrong with your working otherwise. $\endgroup$– Siong Thye GohCommented Apr 18, 2018 at 2:53
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1 Answer
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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.
answered Apr 18, 2018 at 2:53