Consider the system of linear equations 5x + 4y - 2z = 2, -2x + 8y - 3z = 6, x + y - 7z = 5. Perform one step Jacobi iteration, using x0 = y0 = z0 = 1 as starting value. Perform one step Gauss-Seidel iteration, using x0 = y0 = z0 = 1 as starting value. Do Jacobi iterations converge for this system? Do Gauss-Seidel iterations converge for this system? Why?