Question

find the dual of Boolean expression
XYZ + XYZ​

Answer 1

Answer:

X' is a complement of x because it satisfies the definition of a complement (x+x'=1 and xx'=0). Theorem 3 (De Morgan's Laws): a) (x+y)'=x'y' b) (xy)'=x'+y' Proof: a) Show that x'y'+(x+y)=1 and (x'y')(x+y)=0.