Question

1.Precizati multimile finite:F={x|x apartine N , x la puterea 2> sau egal 100}.

2.Stabiliti valoarea de adevar a urmatoarelor propozitii:

a) {1,2,3,4} contine 3 patrate perfecte;
b) card{2,3}<card{0,1,2};
c) 15 nu apartine{x|x apartine x=3*k,k apartine N}.

VA ROG CAT MAI URGENT SA MA AJUTATI........
MULTUMESC

Answer 1

1)x²≥100
x≥√100
x≥10
F={10,11,12,13,14,15,16,17,18,19,20,21......}
2)
a) fals
b)adevarat
c)fals