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Question

If AandB are two disjoint sets, then which one of the following is correct?


A

A-B=A-(AB)

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B

B-A=AB

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C

AB=(AB)

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D

none of these

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Solution

The correct option is A

A-B=A-(AB)


Explanation for the correct option:
Given that AandB are two disjoints.

Therefore, AB=Ø

Now, AB=A

And A(AB)=AØ=A

Thus AB=A(AB)

Hence option A is the correct answer.


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