The non-homogeneous system of linear equations in matrix form AX = B in ‘n’ unknowns has a unique solution if
Arank A=n
Brank [AB] =n
Crank A = rank [AB]
Drank A= rank [AB] =n
Arank A=n
Brank [AB] =n
Crank A = rank [AB]
Drank A= rank [AB] =n
Related Questions:
a + b = 20 , ab = 50 ആയാൽ എത്ര ?