Relations and Functions

Relations and Functions

Question

Which of the following are examples of null set?

Set of even prime numbers.

Answer

Set of  prime numbers in roster form is A = (2, 3, 5, 7, 11, 13, .....)
even prime number is 2.
rightwards double arrow       space space space space open curly brackets 2 close curly brackets space space not equal to space straight ϕ
Hence, set of even prime numbers in noat a null set.

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