clearly motivate and show all the steps

E6.2 (medium) Formulate the following constraints as linear constraints by introducing binary variables and possible some large number M. Each part a) c) is a separate problem. a) The variable r can only take the values 1, 6 or 8. b) At least two of the following three constraints must be satisfied. 21+ 22 1. c) The two vectors of binary variables (x1...,) and (.....) are not identical. (E..., r = (1,1,0) and y = (1,1,1) are feasible vectors, but x = (1,1,1) and y=(1,1,1) are not.)