USING MATLAB/SCILAB: Given the set of linear equations, solve and find the error vector and its magnitude.

6) Given the following set of linear equations -4-2x2-3x3 +2x4 = 7 2x, + x2-x3-5x4 =-1 x, +x2 +x3 +x4 = 10 2x-x2 + 4x3 4-5 Solve using x = (ATA)Ab, find the error vector and its magnitude Input: (copy and paste the MATLAB or Scilab command in the following box)