3 Consider the inhomogeneous linear system An: = b in augmented matrix [5 Marks] 1 2 ::1 1 2 r1 ? 3 I {i} State the two row operations required to reduce the augmented matrix to row reduoed Echelon form 120 5 ] 1' {ii} State the basic and free variables of the inhomogeneous linear s},l'sttezl:n1 and hence determine the general solution for a: = [n y, z}T. form {iii} Given your solution to part [ii]1 state the general solution to the nor responding homogeneous linear system An: =