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Real and Complex Number quiz3

Welcome to your Ch # 2 Real and Complex Number quiz3

1. 
Q∩Q'=
2. 
The sum of two real number is also a real number is called _____ property w.r.t Addition.
3. 
The ___ of two real number is also a real number is also called closure property.
4. 
Example of closure property ____.
5. 
Commutative property w.r.t addition is ___.
6. 
Commutative property w.r.t multiplication is _____
7. 

Commutative property is ____

8. 
Associative property w.r.t Multiplication is ___.
9. 

Zero is called ____ w.r.t

10. 
a + 0 = 0 + a = a  is
11. 

The product of real number and zero is ____.

12. 
1 is called _______ w.r.t multiplication.
13. 
a × 1 = 1 × a = a  is _______ property.
14. 

The product of 1 and a number is ____.

15. 

The sum of two numbers is zero (0) is called ____.

16. 
If a+a'=a'+a=0 then a' is called _______ of a.
17. 
If a+(-a)=-a+a=0 then -a is called _______ of a.
18. 
The product of two number is 1 is called ___.
19. 
If a.a-1=a-1.a=1 then a-1 is called ________ of a.
20. 

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