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

Question:

If \(A=\begin{bmatrix}-1&0&0\\ 0&3&0\\ 0&0&5\end{bmatrix},\) then A is a/an:
  • A. scalar matrix
  • B. identity matrix
  • C. symmetric matrix
  • D. skew-symmetric matrix