2. A) Write a simple code to solve the system with MATLAB. (Use matrix division) 3 2 11 x1 79 5 18 3 x2 99 3 12 17 X3 1391 B) Apply Gaussian elimination by hand and find the exact solution. C) Apply LU decomposition by hand after apply pivoting and check whether A=LU. D) Write a simple code to solve this system with LU decomposition in MATLAB and check the result by using the norm for Ax=b. E) Apply 3 steps of Jacobi iteration by hand with Xo = 2. Find the absolute error in each step. Activate W F) Apply 3 steps of Gauss-Seidel iteration by hand with Xo = 12). Find the absolute error in each step. Go to Settings l 2. A) Write a simple code to solve the system with MATLAB. (Use matrix division) 3 2 11 x1 79 5 18 3 x2 99 3 12 17 X3 1391 B) Apply Gaussian elimination by hand and find the exact solution. C) Apply LU decomposition by hand after apply pivoting and check whether A=LU. D) Write a simple code to solve this system with LU decomposition in MATLAB and check the result by using the norm for Ax=b. E) Apply 3 steps of Jacobi iteration by hand with Xo = 2. Find the absolute error in each step. Activate W F) Apply 3 steps of Gauss-Seidel iteration by hand with Xo = 12). Find the absolute error in each step. Go to Settings l