Asked by Winston

Prove that if A∩B = A∪B then A=B.

Having troubles figuring this one out.

8 years ago

Answered by Damon

Draw Venn diagram

8 years ago

Answered by Winston

Anyway to do it without drawing?

8 years ago

Answered by Damon

any element in one must be in the other.
any element not in one cannot be in the other :)

8 years ago

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