# $A=left[a_{i j} ight]_{m imes n}$ is a square matrix, if

Question:

$A=\left[a_{i j}\right]_{m \times n}$ is a square matrix, if

(A) $m (B)$m>n$(C)$m=n$(D) None of these Solution: The correct answer is C. It is known that a given matrix is said to be a square matrix if the number of rows is equal to the number of columns. Therefore,$A=\left[a_{i j}\right]_{m \times n}$is a square matrix, if$m=n\$.