CBSE 2025 · Region 1 · Set 1 · Q6 · 1 mark
If A is a square matrix of order $\displaystyle 2$ such that $\displaystyle \operatorname{det}(\mathrm{A})=4$, then $\displaystyle \operatorname{det}(4 \operatorname{adj} \mathrm{~A})$ is equal to :
Official answer
From CBSE’s own marking scheme for this paper.
(B)
$\displaystyle 64$
DeterminantsAdjoint and Inverse of a MatrixApplymcqmedium
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CBSE Class 12 Mathematics past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.