:即|x?1|?|2x+3|≤
|2m?1|+|1?m| |
|m| |
因?yàn)椋?span>
|2m?1|+|1?m| |
|m| |
|2m?1+1?m| |
|m| |
所以只需|x-1|-|2x+3|≤1
①當(dāng)x≤?
3 |
2 |
②當(dāng)?
3 |
2 |
③當(dāng)x≥1時(shí),原式x-1-2x-3≤1,即x≥-5,所以x≥1.
綜上x的取值范圍為(-∞,-3]∪[-1,+∞).
故答案為(-∞,-3]∪[-1,+∞).
|2m?1|+|1?m| |
|m| |
|2m?1|+|1?m| |
|m| |
|2m?1+1?m| |
|m| |
3 |
2 |
3 |
2 |