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The binary operation ** defined on a set...

The binary operation `**` defined on a set s is said to be commutative if

A

`a**b in S AA a, b in S`

B

`a ** b =b ** a AA a, b in S`

C

`(a ** b) ** c =a ** (b ** c) AA a, b in S`

D

`a ** b = e AA a, b in S`

Text Solution

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The correct Answer is:
B
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