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Mathematics · 2026 · 1 mark
CBSE 2026 · Region 3 · Set 2 · Q17
If A ( adj A )= [2026, 0, 0; 0, 2026, 0; 0, 0, 2026], then the value of | adj A | is equal to:
If $\displaystyle \mathrm{A}(\operatorname{adj} \mathrm{A})=\left[\begin{array}{ccc}2026 & 0 & 0 \\ 0 & 2026 & 0 \\ 0 & 0 & 2026\end{array}\right]$, then the value of $\displaystyle |\operatorname{adj} \mathrm{A}|$ is equal to :
Official answer
(D)
$\displaystyle (2026)^{2}$
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CBSE Class 12 Mathematics past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.