an example of closure property

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Closure Property:-
Whole numbers are closed under addition and multiplication. That is whenever we add or multiply any two whole numbers, the answer is again a whole number.
Example:-10+5=15
20×5=100
Therefore, whole numbers satisfy closure property under addition and multiplication.
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  • closure property in addition
according to this property a +b is an integer if a and b are integers so lets verify if a is -2 and b is 4
-2 +4=-(4-2)=-2,which is an integer
  • closure property for multiplication
this property says that product of a and b is an integer if a and b are integers so lets verify with a 3 and b -5
3x (-5) is equal to -(3x5) which is -15 ,which is an integer
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