Question

9,7<x<9,718

Answer 1

Lộn đề !

Answer 2

9,7 = 9,700

9,700 < x < 9,718

ta có vô số x như :

9,701 ; .......

Answer 3

x=9,711 ; 9,712;9,713;9,714;9,715;9,716;9,717

Answer 4

\(9,7< x< 9,718\)

\(x=9,71\)