what is element a23 (23 is a subscript) in matrix a?
A =
8 -4 -3
3 -9 -5
-8 8 8
Element a23 refers to the value in the second row and the third column of matrix A. In this case, a23 = -5.
To find the element A23 in matrix A, you count down to the second row (row index 2) and move to the third column (column index 3).
Based on the given matrix A:
8 -4 -3
3 -9 -5
-8 8 8
Element A23 is the element in the second row and third column, which is -5.
To find the element a23 in matrix A, we need to locate the element that is in the second row and third column.
In matrix A, the second row is:
3 -9 -5
The third column is:
-3
-5
8
Therefore, the element a23 is -5.