Q. An algebraic structure _________ is called a semigroup.

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Q. Condition for monoid is __________

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Q. A monoid is called a group if _______

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Q. A group (M,*) is said to be abelian if ___________

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Q. Matrix multiplication is a/an _________ property.

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Q. A cyclic group can be generated by a/an ________ element.

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Q. How many properties can be held by a group?

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Q. A cyclic group is always _________

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Q. {1, i, -i, -1} is __________

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Q. __________ are called group postulates.

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Q. A subgroup has the properties of ________

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Q. If a * b = a such that a ∗ (b ∗ c) = a ∗ b = a and (a * b) * c = a * b = a then ________

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Q. The set of odd and even positive integers closed under multiplication is ________

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Q. If F is a free semigroup on a set S, then the concatenation of two even words is ________

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Q. The set of rational numbers form an abelian group under _________

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Q. Condition of semigroup homomorphism should be ____________

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Q. A function f:(M,∗)→(N,×) is a homomorphism if ______

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Q. A function defined by f(x)=2*x such that f(x+y)=2x+y under the group of real numbers, then ________

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Q. If x * y = x + y + xy then (G, *) is _____________

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Q. Let (A7, ⊗7)=({1, 2, 3, 4, 5, 6}, ⊗7) is a group. It has two sub groups X and Y. X={1, 3, 6}, Y={2, 3, 5}. What is the order of union of subgroups?

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