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If A=\left \{ 1,2,3,4 \right \} and B=\left \{ x:\: x\, \epsilon \, N ; 1\leqslant x\leqslant 4 \right \}  then find A\cup B

  • Option 1)

    A

  • Option 2)

    B

  • Option 3)

    none of these

  • Option 4)

    Both (A) and (B)

 

Answers (1)

best_answer

As we learned,

 

Idempotent Law -

AUA=A

A\capA=A

-

 

 

 

Since A\cup B=A=B

as A=B ; thus (D) is correct


Option 1)

A

Option 2)

B

Option 3)

none of these

Option 4)

Both (A) and (B)

Posted by

gaurav

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