Question

Ordonați crescător numerele 3,92(1); 3,(921); 3,9(21); 3,921

Answer 1

3, 921  3,92(1)   3,9(21)  3,(921)

Answer 2

pentru a compara mai usor putem scrie:
3,92(1)=3,921111
3,(921)=3,921921
3,9(21)=3,92121⇒3,921< 3,921111<3,92121<3,921921⇒3,921<3,92(1)<3,9(21)<3,(921)
3,921=3,921