Use MATLAB to solve the following problems to understand the sensitivity of the solution of certain linear equations for small changes. Solve the equations 0.835x+0.667y = 0.168 0.333x+0.266y = 0.067 Redo by changing the right hand side to [0.168; 0.066] (u) Solve the equations Ax = b where A = [10 7 8 7; 7 5 6 5; 8 6 109; 7 5 9 10] b = [32 23 33 31] Solve again using the following vector b' (matrix A remains unchanged) b' = (32.1 22.9 33.1 30.9] Solve again using the matrix A' = [10 7 8.1 7.2; 7.08 5.04 6 5,8 5.98 9.89 9;6.99 4.99 9 9.98] and the original vector b. (111) Solve the equations Ax=b where A = [8 5 2; 21 19 16; 39 48 53] b = [15 56 140] Solve again using the following vector b' (matrix A remains unchanged) b' = [14 56 140]