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STD 12 - 3 and 4 . determinant and metrices — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 12 - 3 and 4 . determinant and metrices4 Marks
MCQ
$A=\left[\begin{array}{l}a_{i j}\end{array}\right]_{m\times n}$ is a square matrix, if
  • A
    $m < n$
  • B
    $m > n$
  • ✓
    $m=n$
  • D
    None of these
✓

Answer

Correct option: C.
$m=n$
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, $A = {\left[ {{a_{ij}}} \right]_{m\, \times n}}$ is a square matrix, if $\mathrm{m}=\mathrm{n}$

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