Mathematics · 2023
JEE Main · 24 January 2023, Shift 2 · Q65
Let A be a 3 × 3 matrix such that | adj ( adj ( adj A))|=12^4 Then |A^-1 adj A| is equal to
Let $\displaystyle A$ be a $\displaystyle 3 \times 3$ matrix such that $\displaystyle |\operatorname{adj}(\operatorname{adj}(\operatorname{adj} A))|=12^4$ Then $\displaystyle \left|A^{-1} \operatorname{adj} A\right|$ is equal to
Official answer
From NTA’s final answer key for this paper.
(1)
$\displaystyle 2 \sqrt{3}$
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JEE Main 2023 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.