Question 2: Assume any arithmetic computation must follow the five-digit chopping arithmetic which is defined as follows: given a real number q expressed in normalized decimal form as q=+(0.d,d,d,dad, ... did,41 ..)x10" , the value of this number is q = +(0.d,d,d,d d;)x10", where 1 1. Based on the five-digit chopping arithmetic, solve the following simultaneous equation Ax = b , where x = [x X2 x, ]', 5 -3 0 4 -3 1.801 6 3.903 5 3.2 5 X3 6.14 (a) using naive Gaussian elimination method. (15 marks) (b) using Gaussian elimination with pivoting. (15 marks)