Let a 1 2 3 b 3 4 5 then July 8, 2019 16 32 64 128 Let a 1 2 3 b 3 4 and c 4 5 6 then Let a 1 2 3 4 and b 3 4 5 6 then a ∩ b Let u 1 2 3 4 5 6 a 2 3 b 3 4 5 then Let a 1 2 3 4 and b 2 3 4 5 6 then a ∆ b Let a= 1 2 3 b= 4 5 6 7 Let a = 1 2 3 4 5 and b = 0 3 6 Let a= 1 2 3
