Question

define the integer and rational number and irrational number and real number

Answer 1

Integers : The set of positive numbers , negative numbers and 0 is known as Integers .
Rational numbers : The numbers which can be written in the form of p/q , where p , q are integers and q ≠ 0 .
Irrational numbers : The numbers which can't be written in the form of p/q  , where p , q are integers and q ≠ 0 .
Real numbers : The collection of all rational and irrational numbers is known as real numbers .

Answer 2

integer- collection of positive numbers and negative numbers
rational numbers- any number that can be written in the form of p/q where q≠0
irrational numbers-any number that cannot be written in the form of p/q where q≠0
real numbers- collections of both rational and irrational numbers