defence exam Army Havildar SAC Mock Test Series 2025 Mathematics Matrices Adjoint and Inverse of a Square Matrix
If \(\begin{bmatrix} 1 & -3 & 2 \\\ 2 & -8 & 5 \\\ 4 & 2 & λ \end{bmatrix}\) is not an invertible matrix, then what is the value of λ ?
1
-1
2
0
3
1
4
2