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Let A and B be sets. If AnnX=BnnX=phi an...

Let A and B be sets. If `AnnX=BnnX=phi` and `AuuX=BuuX` for some set X then how that A=B

A

`A-B=A nn B`

B

`A = B`

C

`B-A=A nn B`

D

None of the above

Text Solution

Verified by Experts

The correct Answer is:
B
Given, `AnnX=BnnX=phi` So, A and X, B and X are disjoint sets.
Also, `A uu X=B uu X`
`implies" "A=B`
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