Algebra Archive: Questions from April 20, 2023
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Indique cuales son grupos y cuales son grupos abelianos,
justifique sus respuestas:
a. ({a + b √2 | a, b ϵ Q }, +)
b. ({e, a}, *), donde e*e=e y e*a = a*e = a*a = a
C. ({1, 2, 3, 4, 6, 12}, mcd)
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