Question

what is mean by R12(-1) on determinant?​

Answer 1

Answer:

Properties of Determinants

The determinant can be a negative number. ... The determinant only exists for square matrices (2×2, 3×3, ... n×n). The determinant of a 1×1 matrix is that single value in the determinant. The inverse of a matrix will exist only if the determinant is not zero.