名校
1 . 已知函数
,
.
(1)当
时,讨论
的单调性;
(2)若
,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f1d32a976a68683097b1a278fc43e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f554a251b4709c2f7cc7317f21d0860.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c9496a840859c8031d381aca2d66900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe393adbbdabd124bc5fbaeda094991.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2022-03-09更新
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