Mathematics · 2023
JEE Main · 30 January 2023, Shift 2 · Q64
If P is a 3 × 3 real matrix such that P^T=a P+(a-1) I, where a>1, then
If $\displaystyle P$ is a $\displaystyle 3 \times 3$ real matrix such that $\displaystyle P^T=a P+(a-1) I$, where $\displaystyle a>1$, then
Official answer
From NTA’s final answer key for this paper.
(1)
$\displaystyle |\operatorname{Adj} P|=1$
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JEE Main 2023 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.