Question

For two sets AUB=A iff


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Answer 1

Answer:

set a=set b

hope this helps

Answer 2

Step-by-step explanation:

There are three cases possible for the relation

AUB =A

Case1 : if set A = set B

Then, AUB =A=B

Case2: if set A not equal to set B . But, B is the subset of A.

Then, AUB =A

Case3 : if B is a null set . Then also B is the subset of A.

Then, AUB = A

Here is your answer.