已知函数
.
(1)若
,解不等式
;
(2)当
时,
,求满足
的
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6883510279701921a49bdf27152b5c39.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17b382a5cd6655179c0e3c11dc26268.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e9d2350a32e7b7d30bf1a1e2b57c56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e962f78f159a80328d992fbaa55d6b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2017-06-17 17:44:51
|
【知识点】 含绝对值不等式的解法
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适中
(0.65)
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解题方法
【推荐1】已知
.
(1)求
的解集;
(2)若
,对
,
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e32fe6eea89758fe843a869976d08fd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914c67ddd60c47e91783929c8bdf8ba8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be97cd1c7111b654d87d8fbb63b6a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1916ade8bab763ec75927c2612633b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdcc304f4fe6761281e1a1cdd123ae1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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