A= 5 4 3 2 1 b= 1 2 3 4 5 July 8, 2019 16 32 64 128 A 1 2 3 4 5 6 A = 1 2 3 4 5 and b = 3 4 5 6 then a - b = A 5 -1 3 b 2 -2 4