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Let A={x ; x in N ,\ x is a multiple of...

Let `A={x ; x in N ,\ x` is a multiple of 3`}` and `B={x : x in N\ a n d\ x` is a multiple of 5`}` . Write `AnnB`

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  19. Which of the following statement is false: A-B=AnnB b. A-B=A-(AnnB) c...

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  20. For any three sets A, B, and C Ann(B-C)=(AnnB)-(AnnC)

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