Question

$A=[a_{ij}{]}_{m\times n}$ is a square matrix, if

• A. $m=n$
• B. None of these
• C. $m<n$
• D. $m>n$

Answer 1

The correct option is A $m=n$

Given: $A=[a_{ij}{]}_{m\times n}$ is a square matrix
So, $A$ has $m$ rows and $n$ columns.
For a square matrix, number of rows and number of columns are equal.
Since $A$ is a square matrix,
$\therefore m=n$
Hence, $C$ is correct answer.