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Question

( Z,* ) be a structure, and * is defined by n * m =maximum ( n , m ). Which of the following statements is true for ( Z, * ) ?

a.

( Z,* ) is a monoid

b.

( Z,* ) is an algebraic group

c.

( Z,* ) is a group

d.

None of the mentioned

Answer: (d).None of the mentioned

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Q. ( Z,* ) be a structure, and * is defined by n * m =maximum ( n , m ). Which of the following statements is true for ( Z, * ) ?