1. Calculate the most probable values for A and B in the equations belowby the method of least squares. Consider the observations to be of equal weight. Solve the problem using hos algebraic approach and matrices and compare your results. [1011135] A+ss=1sss+v1 set33 =s_55+.r2 EFL-B = -lD.5D+'-.r3 2. If the observations above have weights of 2, 3 and l respectively= solve these equations for the most probable values of A and B using new [1 least squares method. Solve the problem using hos algebraic approach and matrices and compare your results. [10 Pm]