Number of non-singular matrices, with four entries as and all other entries as is
at least
Find the number of matrices formed based on given conditions
Form the matrix,
We have four 's. In the above matrix, three are filled. So, remaining can be placed in any of the positions and elsewhere.
Therefore, we get non-singular matrices
Now consider
Similarly we get another set of non-singular matrices.
So, we can easily form multiple matrices based on given conditions.
Hence, the correct option is .