已知函数
.
(1)若函数
的最小值为2,求实数
的值;
(2)若命题“存在
,满足不等式
”为假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18ee503d16d8fc74aa1852a808b1e615.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3b4305fd208f7482cf6fe3c2968b1b2.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若命题“存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc0414f6c290d1dc3678ba41b4620f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4d87d2b2c461623f0983a5abd295366.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2018-01-05 16:14:49
|
【知识点】 求绝对值不等式中参数值或范围解读
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【推荐1】设函数
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若
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当
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解答题-问答题
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适中
(0.65)
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【推荐2】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f61738494e3dd5abb0ea0303da590415.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81ed7f6a4475e0fa682fa81ee747da3.png)
(2)对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
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