名校
1 . 已知
,函数
,
(
是自然对数的底数).
(Ⅰ)讨论函数
极值点的个数;
(Ⅱ)若
,且命题“
,
”是假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa5d5f3fced276f3127f2e3c0c428f9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c9f357eae697e6758b13b7a13b593f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d218992d1942266d7208e476d0c4100.png)
(Ⅰ)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7d176e1fcf07f69f98de820bf524236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba6f008ca86a6fe6b2b467254e388cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2017-05-10更新
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4卷引用:2019届湖南省岳阳市第一中学高三第二次模拟数学(理)试题