🛠️ JEE➗ Maths

Let for \(A=\left[\begin{array}{lll}1 & 2 & 3 \\ a & 3 & 1 \\ 1 & 1 & 2\end{array}\right],|A|=2\…

Q1

Let for \(A=\left[\begin{array}{lll}1 & 2 & 3 \\ a & 3 & 1 \\ 1 & 1 & 2\end{array}\right],|A|=2\). If \(|2 \operatorname{adj}(2 \operatorname{adj}(2 A))|=32^{ n }\), then \(3 n+\alpha\) is equal to

[JEE Main 2023, 13 Apr (Shift 2)]

a

10

b

9

c

12

d

11

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