8. Determine the set A; if, for every positive integer i (0.25 points each), i= 2 (a) Ai = {-i, -i +1,...,-1,0,1,..., i -1, i} (b) A; = {-i, i} Note that here you don't necessary need to provide the answer as an explicit set of elements. You can also describe the set if that seems simpler