CUET Mathematics 2026 15th May Shift 1 PYQs

If A is a square matrix of order 3, B = kA and |B| = $x$|A| then,

Let $A = \begin{bmatrix} 2 & 4 \\ -2 & 8 \end{bmatrix}$. If $A^{-1} = \alpha I + \beta A$, $\alpha,\beta \in R$ (Where R is set of real numbers) and I is a $2\times2$ identity matrix, than the value of $4(\alpha-2\beta)$ is equal to:

If A is a square matrix of order 3 with $|A| = 4$, then the value of $|2\,adj\,A|$ is: