A monoid is called a group if

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Mr. Dubey

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📊 Discrete Mathematics

Q. A monoid is called a group if

(A) (a*a)=a=(a+c)
(B) (a*c)=(a+c)
(C) (a+c)=a
(D) (a*c)=(c*a)=e

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✅ Correct Answer: (D) (a*c)=(c*a)=e

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