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

Question:

If \(A=\begin{bmatrix}1&12&4y\\ 6x&5&2x\\ 8x&4&6\end{bmatrix}\) is a symmetric matrix, then \((2x+y)\) is
  • A. \(-8\)
  • B. 0
  • C. 6
  • D. 8