Question

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

• A. $m<n$
• B. $m>n$
• C. $m=1$
• D. $m=2n$
• E. None of these

Answer 1

The correct option is E None of these

Matrix$A={\left[a_{ij}\right]}_{m\times n}$ square matrix

Number of columns $=$ number of rows

$n=m$

$\therefore$ Option E is correct