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Question

If U = {1, 2, 3, 4,5}, A = {2, 3, 4}, B = {1,4, 5}, then which of the following statements are true?


A

AUBB

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B

B – A = A’

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C

(AB)=

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D

All of the above

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Solution

The correct option is D

All of the above


U = {1, 2, 3, 4,5}, A = {2, 3, 4}, B = {1,4, 5}

AB = {1, 2, 3, 4, 5}

So A U B B is true

B – A = (1, 5} , A’ = {1, 5}

So, B – A = A’ is true

(A U B)’ = { } is true

So all the statements are true


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