If a and b are two whole numbers then which of the following statement is not correct
Answers
CORRECT QUESTION
If a and b are two whole numbers then which of the following statement is not correct
a+b = b+a
ab = ba
a-b = b- a
None of these
GIVEN
a and b are two whole numbers
TO CHECK
Which of the following options are not correct :
a + b = b + a
ab = ba
a - b = b - a
None of these
EVALUATION
The set of Whole numbers is denoted by W and defined as
CHECKING FOR OPTION : 1
The set of Whole numbers W is Commutative Under addition
In details for any two whole numbers a , b
So OPTION 1 is CORRECT
CHECKING FOR OPTION : 2
The set of Whole numbers W is Commutative Under multiplication
In details for any two whole numbers a , b
So OPTION 2 is CORRECT
CHECKING FOR OPTION : 3
The set of Whole numbers W is NOT Commutative Under subtraction
In details for any two whole numbers a , b
For example
Take two whole numbers 2 & 3
Then
Hence
So OPTION 3 is NOT CORRECT
RESULT
Thus OPTION 3 : a - b = b - a is NOT CORRECT
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