已知函数
.
(1)当
时,解不等式
;
(2)若
的最小值为1,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d0244f3d915dcb752b1cf04dc0f80ed.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17a6be8fbe07bf31d7a2a353c51ce8af.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2016-12-13 08:39:17
|
【知识点】 绝对值不等式
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐1】已知不等式
的解集为
.
(1)求
,
的值;
(2)若
,
,
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1fa846cb21810e1c488c3a70c680ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7204f43679af6935e494c59d40c6ff.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c3de5d5e301c318bea271ae99e9b6b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd43d3dbbf37a17e42059c01bb26299.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】【选修4
5:不等式选讲】(本小题满分10分)
已知函数
.
(1)当
时,求不等式
的解集;
(2)不等式
恒成立时,实数
的取值范围是
,求实数
的集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfc339cf6dd66599db64fa3fa44e608.png)
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71d345fe799eff3cb1743b47fc74e954.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70fe5ced701ee5e489de2b0fd3260114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8559250e7a91f36fe7a8ec6ce6a1550f.png)
(2)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d65a9e03a39ff04c7560ad41e018b41f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a77212475fa7b0c28c59db04db4fae7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次