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Class: 12
Subject: Math
Topic: Matrices
Year: 2024
Question:
If \( A = \begin{bmatrix}7 & 0 & x \\ 0 & 7 & 0 \\ 0 & 0 & y\end{bmatrix} \) is a scalar matrix, then \( y^x \) is equal to:
A.
0
B.
1
C.
7
D.
\( \pm7 \)