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Which of the following is not a singleton set?

  • Option 1)

    Set of all the numbers that is neither a composite nor a prime number

  • Option 2)

    Set of even prime number

  • Option 3)

    Set of numbers which divide 12 and 20

  • Option 4)

    S={\phi}

 

Answers (1)

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As we learnt

 

Singleton Set -

 

A set which is having only one element.

- wherein

eg. {3}, {b}

 

 

There are two numbers that divide 12 and 20 i.e 2 and 4.

{{\phi}} is a singleton set with an element {\phi}.


Option 1)

Set of all the numbers that is neither a composite nor a prime number

Option 2)

Set of even prime number

Option 3)

Set of numbers which divide 12 and 20

Option 4)

S={\phi}

Posted by

Himanshu

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