解题方法
1 . 已知函数
.
(1)求不等式
的解集;
(2)设
,若对
,总
,使得
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc1a73a0ecfbe195c22f0e55d320bab.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74bff70b02942f8815dfe06901fd6595.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/254ce5177fce7fa88cbcc4219b41e0ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/703c71e301b4bdaef96da0c9769adbe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e6d1ab7e8a09f5d8ee9586dc760a876.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c29f5020d133f458912dc3da22b8127d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
2 . 已知
.
(1)若不等式
的解集是区间
的子区间,求实数a的取值范围;
(2)若对任意的
,不等式
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/273c39b2e740905fbb4dae1044b3d5ee.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13f5ce3a8321034b278555fc2105387b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a5c4c4e50a0a67ce5fa0e422d2eb4ef.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f20e9fee5cd966d902e0ae35538d24e5.png)
您最近一年使用:0次
2020-03-09更新
|
402次组卷
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3卷引用:2020届黑龙江省哈尔滨市第九中学高三上学期期末考试数学(文科)试题
名校
3 . 已知函数
(1)当
时,求不等式
的解集;
(2)若
的解集包含
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f5e03f1fe43c987101ddf1ad386526e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94cc25a7cf28ed096549fbae97fce40a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d3c756a52c9185ae6d02d9b9312f29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1279ef84071f5ad7c4c1681357edd84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-03更新
|
545次组卷
|
10卷引用:宁夏石嘴山市第三中学2017届高三上学期期末数学(文)试题