Question

what is null set ?give two examples?​

Answer 1

Answer:

Any Set that does not contain any element is called the empty or null or void set. The symbol used to represent an empty set is – {} or φ. Examples: Let A = {x : 9 < x < 10, x is a natural number} will be a null set because there is NO natural number between numbers 9 and 10.

Answer 2

Answer:

In mathematical sets, the null set, also called the empty set, is the set that does not contain anything. It is symbolized or { }. There is only one null set. This is because there is logically only one way that a set can contain nothing. For example - The set of dogs with six legs. The set of squares with 5 sides. The set of cars with 20 doors.

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