QUESTION 1 Perform two iterations of the Jacobi method for the linear systems A x = b, using x(0) = (0, 0, 0, 0)^T where A=( 15 -1 2 0;-1 11 -1 3;2 -1 10 -1;0 3 -1 15); b = = (6; 25; -11; 15)^T; then calculate the absoulte error for the first component (i.e) |^2) = x(Q)