已知函数
.
(1)当
时,求
的极值;
(2)讨论函数
的单调性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4631d7446e08c1020de45902695c540.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
20-21高二下·山东聊城·期末 查看更多[3]
山东省聊城市2020-2021学年高二下学期期末数学试题(已下线)5.3.2 极大值与极小值-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册) (已下线)江苏省南通市如皋市2022-2023学年高三上学期8月诊断调研测试数学试题
更新时间:2021-08-02 21:40:28
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解答题-问答题
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名校
解题方法
【推荐1】已知函数
,其中
.
(Ⅰ)当a=1时,求函数
的单调区间:
(Ⅱ)求函数
的极值;
(Ⅲ)若函数
有两个不同的零点,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94767ba1e2900e2f3cff576ea9f3b891.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(Ⅰ)当a=1时,求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅱ)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅲ)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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解答题-问答题
|
较难
(0.4)
【推荐2】已知函数
.
(1)当
时,求
的单调区间和极值;
(2)若
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49338678206cb7ebd144577dbf2726ce.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90dcb624f45c320a592ec9ab6c3df149.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d76421feacf5f6b9f0090aed9230ba5.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐1】已知函数
.
(1)求函数
的最大值;
(2)讨论函数
的单调性;
(3)若
,求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61e9685564a2f1e39eb86e14e7c4b463.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5ea91319c111fa61f5450b084657fab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-证明题
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较难
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【推荐2】已知函数
.
(1)若
,讨论函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9fa79d44849fc5a5e5e3de96cc855d0.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08290af79305df59bc0a1fc2b7c4f7c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e0a9e336769fba32ab7b516f52d0a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94a1fbaffdca6214e4fcc9e83e5cf037.png)
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