Question

Find the cardinality of the following set.

D = { x ∈ N ∣ x < 2 and ≥ 5 }

n ( D ) =

Answer 1

Answer:

0

Step-by-step explanation:

Given :

D = { x ∈ N | x < 2 and x ≥ 5 }

Thus D can have values of x when x < 2 and when x ≥ 5 .

This means that D can have the following values which x can hold:

x < 2 , hence x is given less than 2 .

It is also given that x ≥ 5 which means x is more than or equal to 5 .

But it is not possible for a number to be less than 2 and more than 5 and hence there is no existing values for x .

D is hence a null set .

Cardinality of a set is the number of elements in it .

The cardinality will be 0 .

Answer 2

Here is your answer ☺️☺️❤️❤️

0

Hope this helps you ☺️❤️❤️❤️