(i) xy + xy’z + xyz
The given Boolean expression can be written as
= (x NAND y) NAND (x NAND (NOT y) NAND z) NAND (x NAND y NAND z)
(ii) ABC + AB’C’ + ABC
The given Boolean expression can be written as
= (A NAND B NAND C) NAND (A NAND (NOT B) NAND (NOT C)) NAND (A NAND B NAND C)
