Four experimental measurements of particular combinations of three physical variables, x, y and z, gave the following inconsistent results:
13x+22y−13z=4,10x−8y−10z=44,10x−8y−10z=47,9x−18y−9z=72.
Find the SVD best values for x, y and z. Identify the null space of A and hence obtain the general SVD solution.