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$\mathbf{A}=\left[\mathrm{a}_{\mathrm{i} \mathrm{j}}\right] \mathrm{m} \times \mathrm{n} \mid$ is a square matrix, if (A) $mn(C) m=n$ (D) None of these
$\mathbf{A}=\left[\mathrm{a}_{\mathrm{i} \mathrm{j}}\right] \mathrm{m} \times \mathrm{n} \mid$ is a square matrix, if (A) $mn(C) m=n$ (D) None of these
CBSE | Class 12 | Exercise 3.1 | Maths | Matrices | NCERT
$\mathbf{A}=\left[\mathrm{a}_{\mathrm{i} \mathrm{j}}\right] \mathrm{m} \times \mathrm{n} \mid$ is a square matrix, if (A) $mn(C) m=n$ (D) None of these

The correct option is,Option (C).

since, Number of rows $=$ number of columns $(m=n)$

i

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