ID: Class: 12 Subject: Math Topic: Matrices and Determinants Type: Mcq Year: 2025

Question:

If \[ A = \begin{pmatrix} 7 & 0 & x \\ 0 & 7 & 0 \\ 0 & 0 & y \end{pmatrix} \] is a scalar matrix, then \(y^x\) is equal to
  • A. \(0\)
  • B. \(1\)
  • C. \(7\)
  • D. \(\pm 7\)