Discussion Forum
Que.  A binary operation on a set of integers is defined as x y = x^2 + y^2. Which one of the following statements is TRUE about ? 
a.  Commutative but not associative 
b.  Both commutative and associative 
c.  Associative but not commutative 
d.  Neither commutative nor associative 
Answer:Commutative but not associative
