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CBSE 2024 · Region 2 · Set 1 · Q12 · 1 mark

If $\displaystyle \mathrm{A}=\left[\mathrm{a}_{\mathrm{ij}}\right]$ be a $\displaystyle 3 \times 3$ matrix, where $\displaystyle \mathrm{a}_{\mathrm{ij}}=\mathrm{i}-3 \mathrm{j}$, then which of the following is false ?

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CBSE Class 12 Mathematics past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.