If a 2 1 b (- 2 3 c 4 5 July 8, 2019 16 32 64 128 If a = 1 2 4 b = 2 4 5 c = 2 5 then (a - b)(b - c) is If a= 1 2 3 4 and b= 4 5 6 find a∪ b If 1 2 3
