1 . 函数
,
.
(1)当
时,求
的单调区间;
(2)对任意
,都有
,使得
成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0a9d2d6b18eef28f73614e87ad58f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32cb884d1e3cdf7803d1bb73d49b4fcb.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/710dcb21f9e3872d3c1789822b1a81c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f1a5699410baa270f3fa8153ab346e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2023-06-17更新
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2卷引用:吉林省通化市梅河口市博文学校2022-2023学年高二下学期期末考试数学试题