4 x + z + t = 1; 4 y + t = 2; x + 4z = 3; Solution of the system x + y + 4t = 4 a) Check if it provides the diagonal efficiency. b) The largest eigenvalue of the iteration matrix is less than one, i.e. ρ (C) < Show that it is 1 (2D). c) Obtain the solution of the system by using Gauss-Seidel Method (2D)

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