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Fazanu6
a fost răspuns

Fie A{x∈R |2x-1|<5} determinati AΩZ

Răspuns :

Adee17
|2x-1|<5=> |2x-1| apartine {0,1,2,3,4}
=>2x-1 apartine {0,1,2,3,4,-1,-2,-3-,-4}
2x apartine {1,2,3,4,5,0, -1,-2,-3}
imparti la 2 si calculezi x, dupa intersectia si gata

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