Question

state de-Morgan's law.

Answer 1

According to the De Morgan’s law when the complement of the union of given two sets is taken then it is equal to the intersection of the complements of the given sets and when the compliment of the intersection of given two sets is taken then it is equal to the union of the complements of the given sets.

hope it helps

Answer 2

(AUB)'=A'
intersectionB'

(A
intersectionB)'=A'UB'