Question

|x| < hoặc Bằng 3

Answer 1

x=1;2;3

Answer 2

\(\Rightarrow\)x=2;x=-2;x=1;x=-1;x=0

Answer 3

Vì \(0\le\left|x\right|< 3\)

=> \(\left|x\right|\in\left\{0;1;2\right\}\)

=> \(x\in\left\{0;1;-1;2;-2\right\}\)

Answer 4

\(\left|x\right|\le3\)

\(\Rightarrow\) \(x\in\left\{-3;-2;-1;0;1;2;3\right\}\)