Let $\mathrm{A}$ be a non-singular matrix of the order $2 \times 2$ then $|a d j A|=\ldots \ldots \ldots \ldots$ (a) $2|A|$ (b) $|A|$ (c) $|A|^{2}$ (d) $|A|^{3}$ - Noon Academy

Let $\mathrm{A}$ be a non-singular matrix of the order $2 \times 2$ then $|a d j A|=\ldots \ldots \ldots \ldots$ (a) $2|A|$ (b) $|A|$ (c) $|A|^{2}$ (d) $|A|^{3}$

Maths | Previous Year Question Papers

Let $\mathrm{A}$ be a non-singular matrix of the order $2 \times 2$ then $|a d j A|=\ldots \ldots \ldots \ldots$ (a) $2|A|$ (b) $|A|$ (c) $|A|^{2}$ (d) $|A|^{3}$

SOL:
Correct option is C. $|A|^{2}$

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