(Linear Systems with Nonsingular Square Matrices). Consider the linear system -321 -3x1 -21 -3x2 +2x3 +2x4 = 1 +22 +3x3 +2x4 = 2 +2x2 +23 +24 = 3 +2x2 +3x3 -24 = -2 2x1 (i) Please accept as a given that the matrix of the system is nonsignular and its inverse matrix is as follows: -1 -3 -3 2 2 7/19 16/19 -28/19 31/19 -5/19 4/19 -3 1 3 2 1/19 -1/19 -1 2 1 1 1/19 3/19 -4/19 4/19 2 2 3 -1, 25/19 -39/19 52/19 5/19 (ii) Use (i) to find the solution of the system (5.1). = (5.1)