In the context of the given figure, which one of the following options correctly represents the entries in the blocks labelled (i), (ii), (iii), and (iv), respectively?
Given an array \( A[n] \) such that:
Find the time complexity to find \( A[i] \).
Given the matrix \( A = \begin{bmatrix} 1 & 2 \\ 2 & -1 \end{bmatrix} \), find \( A^8 \).