Add A=[[11,6],[-16,-9]]

Problem

A=[[11,6],[−16,−9]]

Solution

1. Identify the task as finding the sum of the elements within the given matrix A

2. Sum the elements of the first row: 11 + 6 = 17$.

3. Sum the elements of the second row: −16+(−9)=−25

4. Combine the row sums to find the total sum of all entries: 17 + (-25) = -8$.

Final Answer

(∑_^)(A)=−8

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