Question

what is element a23 in matrix a? A= (-2,1,7) (5,2,8) (0,-6,-3)

Answer 1

So \[A=\left[\begin{matrix}-2 & 1 & 7 \\ 5 & 2 & 8\\ 0 & -6 & -3\end{matrix}\right]\]
\[A _{23}\]simple means the element on the second row and third column.

Answer 2

thank you I got it

Answer 3

You're welcome