What are the dimensions of matrix M

?
M= [8 -9 4]
[2 6 -1]
6
6

3 x 2
3 x 2

8 x -1
8 x -1

2 x 3
2 x 3

wrong

I apologize for that mistake. The correct dimensions of matrix M are:

2 x 3

Using the matrix above, what is the value of M2,1

?

To find the value of M2,1 in the given matrix M:

M = [8 -9 4]
[2 6 -1]

M2,1 refers to the element in the 2nd row and the 1st column, which is 2.

Therefore, M2,1 = 2

3 x 3