Case II If A is a singular matrix, then |A| = 0 In this case, we calculate (adj A) B If (adj A) B ≠ O, (O being zero matrix), then solution does not exist and the
system of equations is called inconsistent Rationalised 2023-24
DETERMINANTS     95
If (adj A) B = O, then system may be either consistent or inconsistent according
as the system have either infinitely many solutions or no solution