Class 9
1. Explain irrational numbers with suitable 2 examples . each should be proper explaination .
2. Explain real numbers and their decimal expansion with suitable 2 examplez . each should be proper explaination .
3. Representing real numbers on the numbers line with suitable 2 examples . each should be proper explaination .
4. Operations of real numbers give with 2 suitable examples . each should be proper explaination .
Each question want to be proper explaination with 2 suitable examples .
Note : Don't copy , Don't spam .
Answers
Step-by-step explanation:
Irrational Numbers:-
1. The numbers can not be written as p/q form, where p and q are integers and q≠0 are called Irrational Numbers.
The set of irrationals is denoted by Q' or S
Example :-
√2,√3,√5 ,π ,e ,log 2...
2. The numbers are in the form of √n where n is a prime number called Irrational Numbers.
3.Non terminating non recurring decimals are also irrational numbers.
Example :- 2.1436846488499085...
Real numbers:-
The collection of rational numbers and irrational numbers is called Real numbers.
The set of real numbers is denoted by R.
Examples :- 2,√5 ,3/4,-7....
Every natural, whole ,integer, rational and irrational number is a real number.
3.See the above attachment
4.Sum of two real numbers is also a real number.
2+3 =5
Difference between any two real numbers is also a real number.
5-3 = 2
Product of two real numbers is also a real number.
5×3 = 15
Quotient of two real numbers is also a real number
2÷5 = 0.4 is a real number.
