Question

Gaseste toate numerele naturale care verifica inegalitatile : a) a x a x a < 30 ; b) b x 2 x 3 < 40 ; c) c : 2 < 6

Answer 1

a={1;2;3}
1×1×1 <30
2×2×2 <30
3×3×3<30
b={1;2;3;4;5;6}
1×2×3 <40
2×2×3<40
3×2×3 <40
4×2×3 <40
5×2×3 <40
6×2×3 <40
c= 2×6 =8
8:2=6