Question

if A is a sequence \[ (2^{n+1}+n^2)_{n\geq1} \] and B is a sequence \[ (2^{n})_{n\geq1} \], do we have \[ A \in O(B )\] or \[ B \in O(A) \] or are both same (O(A)=O(B))?

Answer 1

to make them work use \ before not after the [
\[(2^{n+1}+n^2)_{n\geq1}\]

\[(2^{n})_{n\geq1}\]