Use scalar matrix property to find unknown entries and compute a value

CBSE Class 12 · Mathematics · Matrices · similar questions asked in 2 years (2024, 2025)

Q1 2024 1 mark

If the sum of all the elements of a $3 \times 3$ scalar matrix is 9, then the product of all its elements is…
Q2 2025 1 mark

If $A = \begin{bmatrix} 7 & 0 & x \\ 0 & 7 & 0 \\ 0 & 0 & y \end{bmatrix}$ is a scalar matrix, then $y^x$ is…