1 . 已知函数
.(图中的每个方格是边长1个单位的正方形)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/41cfb566-fa5f-42dd-98de-aa033a42a130.png?resizew=218)
(1)画出函数
的图象;
(2)当
时,若不等式
的解集为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e7557f89eb2c438cdea7fa97eb6551.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/41cfb566-fa5f-42dd-98de-aa033a42a130.png?resizew=218)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e7557f89eb2c438cdea7fa97eb6551.png)
(1)画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3cccca5e25a88445ddd8c1f653c0bfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb7eaadcb7603c384d8a52bb9d4805b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2021-05-14更新
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492次组卷
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3卷引用:内蒙古乌兰察布2021届高三一模 数学(文科)试题
13-14高三上·辽宁铁岭·期中
解题方法
2 . 已知
(a是常数,a∈R)
(1)当a=1时求不等式
的解集;
(2)如果函数
恰有两个不同的零点,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e25751d09eff76265629af044d56e6f7.png)
(1)当a=1时求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
(2)如果函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
您最近一年使用:0次