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Maths-

General

Easy

Question

Which of the following is set representing B but not A?

{}
{2,4}
{2,3,4}
{3}

hint Hint:

Write down all the elements which are in B region but not in A region.

The correct answer is: {3}

$A equals open curly brackets 2 comma 4 close curly brackets B equals open curly brackets 2 comma 4 comma 5 close curly brackets U equals open curly brackets 1 comma 2 comma 3 comma 4 comma 5 close curly brackets S e t space r e p r s e n t i n g space B space b u t space n o t space A space equals space B minus A equals open curly brackets 3 close curly brackets$

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