ID: Class: 12 Subject: Math Topic: Matrices and Determinants Type: Mcq Year: 2024

Question:

If inverse of matrix \(\begin{bmatrix}1&3&3\\ 1&\lambda&3\\ 1&3&4\end{bmatrix}\) is the matrix \(\begin{bmatrix}7&-3&-3\\ -1&1&0\\ -1&0&1\end{bmatrix},\) then value of \(\lambda\) is:
  • A. -4
  • B. 1
  • C. 3
  • D. 4