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GATE | GATE-CS-2005 | Question 46
Consider the set H of all 3 × 3 matrices of the type
where a, b, c, d, e and f are real numbers and abc ≠ 0. Under the matrix multiplication operation, the set H is
(A)
a group
(B)
a monoid but not a group
(C)
a semigroup but not a monoid
(D)
neither a group nor a semigroup
Answer
Please comment below if you find anything wrong in the above post
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