Consider the binary operations on X, a*b = a+b+4, for a, b X. It sat – McqOptions

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1.	Consider the binary operations on X, a*b = a+b+4, for a, b X. It satisfies the properties of _______
A.	abelian group
B.	semigroup
C.	multiplicative group
D.	isomorphic group
Answer» B. semigroup

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