已知函数
,e是自然对数的底数.
(1)当
时,求
的单调区间;
(2)记p:
恰有两个零点;q:
,求证:p是q的充要条件.
(要求:先证充分性,再证必要性)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa9565634a1334d2f5f89af0dd94edf2.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)记p:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0d30e582553a6e95f13fd7ddb571f4e.png)
(要求:先证充分性,再证必要性)
22-23高二下·云南保山·期中 查看更多[2]
更新时间:2023-08-22 15:19:27
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