Question

define null reaction give an example ​

Answer 1

Answer:

Definition: If a set does not contain any element or

member then the set is called a null set. Null set is

also called a void set or empty set. The symbol used

to represent an empty set is – ϕ ,{}. Examples: 1) Let

A = {x :1 < x < 2, x is an integer } be a null set because

there is no integer between numbers 1 and 2.

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Answer 2

Answer:

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