Question

Use characteristics to describe the following matrix

Answer 1

`A_(21) = 6`

Explanation:

We are given that

`A = \left [\begin{array}{cccc}10&4&11&12\\6&3&2&8\end{array}\right]` and we have to find the value of
`A_(21)`

Now, the general term
`A_(mn)` denotes the term in the matrix whose position is mth row and nth column.

So,
`A_(21)` denotes the term in matrix A whose position is 2nd row and 1st column.

Hence, the term is 6.

So,
`A_(21) = 6` (Answer)