Question

= { : Є , ≥ −3} , = { : Є , < 7} ℎ Ⴖ ​

Answer 1

Answer:

Set and their representations A set is a well-defined collection of objects.

There are two methods of representing a set

(i) Roaster or tabular form (ii) Set builder form

1.1.2 The empty set A set which does not contain any element is called the empty

set or the void set or null set and is denoted by { } or φ.

1.1.3 Finite and infinite sets A set which consists of a finite number of elements is

called a finite set otherwise, the set is called an infinite set.

1.1.4 Subsets A set A is said to be a subset of set B if every element of A is also an

element of B. In symbols we write A ⊂ B if a ∈ A ⇒ a ∈ B.

We denote set of real numbers by R

set of natural numbers by N

set of integers by Z

set of rational numbers by Q

set of irrational numbers by T

We observe that

N ⊂ Z ⊂ Q ⊂ R,

T ⊂ R, Q ⊄ T, N ⊄ T

Step-by-step explanation: