Test Academy | Let a binary operation ‘*’ be defined on a set A. The operation will be commutative if a*b=b*a, (a*b)*c=a*(b*c), (b ο c)*a=(b*a) ο (c*a), a*b=a

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Let a binary operation ‘*’ be defined on a set A. The operation will be commutative if

Options :

a*b=b*a
(a*b)*c=a*(b*c)
(b ο c)*a=(b*a) ο (c*a)
a*b=a

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