Question

Answer 1

\(\left|3x-2\right|\le2\Leftrightarrow-2\le3x-2\le2\Leftrightarrow0\le x\le\dfrac{4}{3}\).

Chọn D

Answer 2

TH1: `3x-2>=0 `

`3x-2<=2`

`<=> x <= 4/3`

`=> S_1 = [0; 4/3]`.

TH2: `3x-2<0 <=> x < 2/3`

`3x-2>2`

`<=> x>4/3`

`=> S_2 = ∅`

Vậy `S=[0; 4/3]`.