Emachaaan Emachaaan

15-09-2022
Mathematics

contestada

(1p) 6 Se dă mulțimea A cu proprietățile:
a dacă x € A, atunci 3x + 2 = A;
Arătaţi că numărul 1700 aparține mulțimii A.
NOTĂ. Timp de lucru: 50 de minute. Se acordă 1 nung
b dacă 3x + 1 € A atunci x = A;

BCA, știind că
c 19 € A.

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