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Pattyx3
a fost răspuns

Determinati multimea A={ x∈Z | 1/2x-1 ∈Z}

Răspuns :

2x-1|15 => 2x-1={1,3,5,15,-1,-3,-5,-15} 2x={2,4,16,0,-2,-4,-14}=>x={1,2,8,0,-1,-2,-7}=A Sper ca te-am ajutat ;)