Published by:
CGP EDU Academic Team
Published on: August 13, 2026
On the set 
of all rational numbers the operation * which is both associative and commutative is given by 
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
: 
is both associative and commutative.
Commutativity : 
Associativity: 
.
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