1. The problem is to find the value of \(b_{ii}\), which typically refers to the diagonal element in the second row and second column of a matrix \(B\). 2. To solve this, we need the matrix \(B\) or the context in which \(b_{ii}\) is defined. Since the problem only states \(b_{ii}\), we assume it means the element at position \((i,i)\) for \(i=2\). 3. If \(B = [b_{ij}]\) is a matrix, then \(b_{ii} = b_{22}\) is the element in the second row and second column. 4. Without the explicit matrix or values, we cannot compute a numeric answer. 5. Please provide the matrix or additional context to find \(b_{ii}\).