名校
解题方法
1 . 设函数
.
![](https://img.xkw.com/dksih/QBM/2020/3/29/2430054929588224/2430691270508544/STEM/702b533bb1ce40a394c6f6e414759203.png?resizew=259)
(1)画出
的图象;
(2)设
的解集为
,若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e14ab8ca2428c518561c72e20c19311.png)
![](https://img.xkw.com/dksih/QBM/2020/3/29/2430054929588224/2430691270508544/STEM/702b533bb1ce40a394c6f6e414759203.png?resizew=259)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e2405c4822bceae1cf191edb502d3b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46638e21747c013c68d852b9185c73ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2 . 已知函数
.
(1)画出
的图象;
(2)若不等式
有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f906981d59dfd6c3a9df3de053ed0ae1.png)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13684fef84089c00c45a535ddc79c8d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-03-17更新
|
139次组卷
|
2卷引用:山西省运城市永济中学2020届高三上学期开学模拟训练数学(理)试题
3 . 选修4-5:不等式选讲
设函数
(
).
(1)画出函数
的图像;
(2)若不等式
的解集为
,求
的值.
设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/713ae4ba4fe1ca6293153a61a847455e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640d3bcd10055871a5ec2f442c1030c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ffa4709610670c1c7157e1e558f1c90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次