Skip to content / Đến nội dung
ThichHocToan.com

1973 AMC 12 Question 22

AMC12 · 1973 AMC 12

Question 22

The set of all real solutions of the inequality $$
|x-1|+|x+2|\lt5
$$ is
  1. $\{x:-3\lt x\lt2\}$
  2. $\{x:-1\lt x\lt2\}$
  3. $\{x:-2\lt x\lt1\}$
  4. $\left\{x:-\dfrac32\lt x\lt\dfrac72\right\}$
  5. $\varnothing$ (empty)