选修4-5:不等式选讲
设函数
.
(Ⅰ)当
时,解不等式
;
(Ⅱ)若
,求
的取值范围.
设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d63e2756f9564ae65b38d298c518d0.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f61db73a5a9bce4ece8259a4c7d29376.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/239ec36ab645e08f20ea9084cefd4ef1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2017-07-24 20:17:58
|
【知识点】 分类讨论解绝对值不等式解读
相似题推荐
解答题-证明题
|
适中
(0.65)
解题方法
【推荐2】已知函数
.
(1)当
时,求不等式
的解集;
(2)若
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d1234f7f5ddd4929934662d50435586.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb0d7fbcc396c7b646c31f60e32d9e76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03fc1cd2baabbf8afea25478e1258237.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4743ec9c1fee6d4685fb9f959458300.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f00f997ae12c30f551adb834e1d7ef8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f61db73a5a9bce4ece8259a4c7d29376.png)
您最近一年使用:0次