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1 . 已知函数
.
(1)若曲线
在
处的切线与
轴垂直,求
的单调区间;
(2)若对任意
,不等式
恒成立,求
的取值集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3bf00beccd8640e004525d7adc49158.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c704f933ba573c1ca97a7049e6f9ab48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2021-03-23更新
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3卷引用:内蒙古包头市第四中学2020-2021学年高二下学期4月月考数学(理)试题