Maths-
General
Easy

Question

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

  1. {}    
  2. {2,4}    
  3. {2,3,4}    
  4. {3}    

hintHint:

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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