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If A\cup B= U\: \: and\: \: A\cap B= \phi . Then which of the following is not true?

  • Option 1)

    A'=B

  • Option 2)

    A= B{}'

  • Option 3)

    A\cap B= B\cap A

  • Option 4)

    A\cup B= A\cap B

 

Answers (1)

best_answer

As we learnt

 

LAW OF COMPLEMENT -

 

A ∩ A′ = φ

-

 

 Since A ∩ B = φ, they may/may not be compliment of each other.

 


Option 1)

A'=B

Option 2)

A= B{}'

Option 3)

A\cap B= B\cap A

Option 4)

A\cup B= A\cap B

Posted by

Himanshu

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