🛠️ JEE➗ Maths

Let \(B=\left[\begin{matrix}1 & 3 \\ 1 & 5\end{matrix}\right]\) and A be a \(2\times 2\) matrix such that \(A{B}^{-1}={A…

Q1

Let \(B=\left[\begin{matrix}1 & 3 \\ 1 & 5\end{matrix}\right]\) and A be a \(2\times 2\) matrix such that \(A{B}^{-1}={A}^{-1}\). If \(BC{B}^{-1}=A\) and \({C}^{4}+\alpha {C}^{2}+\beta I=O\), then \(2\beta -\alpha\) is equal to

[JEE Main 2024, 9 Apr (Shift 2)]

a

8

b

2

c

10

d

16

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