Question

If A and B are subsets of a set X, then what is An (X- B)} U B equal to? (a) AuB (b) AnB (c) A (d) B​

Answer 1

Correct option is A)

A∩(X−B)=A−(A∩B)

A∩(X−B)∪B=[A−(A∩B]∪B

=A∪B

Answer 2

Answer:

a) A U B

Step-by-step explanation:

X-B U B ( where A,B are sub sets of X)

A UB