CUET Mathematics 2025 3 June Shift 1 PYQs

If A and B are symmetric matrices of the same order, then

If A is a square matrix and I is the identity matrix of same order such that $A^2 = -I$, then $3(A - I)^4 + 3(A + I)^4 - 15A$ is equal to

If $A = \begin{bmatrix} 1 & 2 & 1 \\ 2 & 3 & 1 \\ 0 & 0 & 1 \end{bmatrix}$ then $|adj(3A^T)|^2$ is equal to