Relations and Functions

Relations and Functions

Question

Which of the following are examples of null set?

Set of odd natural numbers divisible by 2.

Answer

Let       B = set of odd  natural numbers divisible by 2.
Set of odd natural numbers = {1, 3, 5, 7, 9, .........)
None of them is divisible by 2.
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Hence,   B is a null set.

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