名校
1 . 已知函数
有两个零点.
(1)求
的取值范围;
(2)设
,
是
的两个零点,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a3c53e08545a3fb2094d5acb9bf759c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/684bcf84f0a266515bfafde0da903050.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b9eb2b30a76dd08912f49cc804c3ae.png)
您最近一年使用:0次
2024-02-17更新
|
926次组卷
|
6卷引用:微专题08 极值点偏移问题
(已下线)微专题08 极值点偏移问题(已下线)重难点2-4 利用导数研究不等式与极值点偏移(8题型+满分技巧+限时检测)(已下线)2023-2024学年高二下学期第一次月考解答题压轴题十六大题型专练(1)广东省深圳市翠园中学2023-2024学年高二下学期第一次段考数学试卷(已下线)专题6 导数与零点偏移【讲】河南省驻马店市2023-2024学年高三上学期期末统一考试数学试题
名校
解题方法
2 . 已知函数
,
.
(1)若函数
在定义域上单调递增,求
的取值范围;
(2)若函数
有两个极值点
.
(i)求
的取值范围;
(ii)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baa6a40d8772bdc1becba2857272aa7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
(i)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(ii)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70a31c1e21548002b21b55015d361cf.png)
您最近一年使用:0次
2024-03-07更新
|
836次组卷
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4卷引用:江苏省南京市五校2023-2024学年高二下学期期初调研测试数学试题
名校
3 . 若
时,函数
取得极大值或极小值,则称
为函数
的极值点.已知函数
,其中
为正实数.
(1)若函数
有极值点,求
的取值范围;
(2)当
和
的几何平均数为
,算术平均数为
.
①判断
与
和
的几何平均数和算术平均数的大小关系,并加以证明;
②当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d71f015144ffaf1faec94a259b4a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c18b8de6c7eb43276a04f94c3c86e20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eee411aceac3fe67a2baae3bfb17f9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be423b2718619420c6545d02b6070a53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3f0f24d3528e467f3978cd4422433e2.png)
①判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fce088a946b9934e891fb4ca0657a0df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ede78fd7ac619ea597856254bb5d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
您最近一年使用:0次
2024-03-03更新
|
886次组卷
|
5卷引用:江苏省南通市如皋市、连云港市2024届高三下学期阶段性调研测试(1.5模)数学试题
名校
4 . 已知函数
.
(1)讨论
的单调性;
(2)若
恰好有两个零点
,
,且
恒成立,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e107063f2300c028d91537c0cf70832a.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd888afdcfdb3e91a157d50f65e915e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfab5631d1543bf2090b1c506698ee35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88ed3f472299563e31282a44aa9fe202.png)
您最近一年使用:0次
2024-01-13更新
|
899次组卷
|
4卷引用:专题10 导数12种常见考法归类(5)
(已下线)专题10 导数12种常见考法归类(5)辽宁省抚顺市六校协作体2024届高三上学期期末数学试题江西省赣州市南康中学2024届高三上学期七省联考考前数学猜题卷(九)(已下线)模块2专题7 对数均值不等式 巧妙解决双变量练
解题方法
5 . 已知函数
,其中
,
为自然对数的底数.
(1)函数
,求
的最小值
;
(2)若
为函数
的两个零点,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8a1a108a57a9d4fbc34d85fedefc822.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab409bb25958c2f01c73e26042c6f51e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c93f6e9a237967967e92d53d55b68f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeb34715867f6e7c145ccf1410d9afef.png)
您最近一年使用:0次
名校
解题方法
6 . 已如函数
.
(1)当
时,求函数
的单调区间;
(2)当
时,求证:函数
存在极小值点
,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7de402fe839aa53c7f29ea4b55fd1a7.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/540faf57028f84450849091b2d758905.png)
您最近一年使用:0次
2023-04-19更新
|
863次组卷
|
4卷引用:模块四 期中重组卷3(江苏苏锡常镇)(苏教版)(高二)
(已下线)模块四 期中重组卷3(江苏苏锡常镇)(苏教版)(高二)江苏省苏州市2022-2023学年高二下学期期中数学试题辽宁省大连市第十二中学2023-2024学年高二下学期6月份学情反馈数学试卷辽宁省沈阳市郊联体2022-2023学年高二下学期期中数学试题
名校
7 . 已知
是实数,函数
.
(1)讨论
的单调性;
(2)若
有两个相异的零点
且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b96f3f5c1b634412a7ef0bb584528e2.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec72ca557aa4229ee871628ffcf0d8a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0fd6297d9af0dbfaccd08a53054ec5.png)
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2022-04-19更新
|
1816次组卷
|
11卷引用:微专题08 极值点偏移问题
(已下线)微专题08 极值点偏移问题(已下线)专题突破卷08 极值点偏移福建省漳州市云霄第一中学2023-2024学年高二下学期第一次月考数学试题(已下线)专题03 利用导数证明不等式(四大题型)湖北省鄂北六校(宜城一中、枣阳一中、曾都一中 、襄州一中、南漳一中、河口一中)2021-2022学年高二下学期期中联考数学试题广东省佛山市南海区九江中学2021-2022学年高二下学期期中数学试题(已下线)专题06 极值点偏移问题-2021-2022学年高二数学下学期期末必考题型归纳及过关测试(人教A版2019)黑龙江省鹤岗市第一中学2022-2023学年高三上学期开学考试数学试题湖北省十堰市部分重点中学2022-2023学年高二下学期5月联考数学试题广东省广东仲元中学2021-2022学年高二下学期5月月考数学试题安徽省淮北市相山区、杜集区、烈山区2022-2023学年高二下学期5月月考数学试卷
2023·全国·模拟预测
8 . 已知函数
.
(1)讨论
的单调性;
(2)若存在不相等的实数
,
,使得
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93db2b78c4ca1ea8a9dfe2b6859d2dcb.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若存在不相等的实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/859458471c86ae39e0cc42d2d960d03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c90a71e026e39701bfd96c129969e87.png)
您最近一年使用:0次
名校
9 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4e6107be46de0bb91fcecb65b9ee2a.png)
(1)若1是
的极值点,求a的值;
(2)求
的单调区间:
(3) 已知
有两个解
,
(i)直接写出a的取值范围;(无需过程)
(ii)λ为正实数,若对于符合题意的任意
,当
时都有
,求λ的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4e6107be46de0bb91fcecb65b9ee2a.png)
(1)若1是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3) 已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1df628874faa615d0cf49e38c6b9968a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
(i)直接写出a的取值范围;(无需过程)
(ii)λ为正实数,若对于符合题意的任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9df7ea8007570536864a5cf4b00a8d2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dafb39935a3b8eee7b2529063ab3fda6.png)
您最近一年使用:0次
2022-10-30更新
|
1621次组卷
|
7卷引用:微专题09 隐零点问题
名校
10 . 已知函数
.
(1)讨论
的单调性;
(2)当
恒成立时,求
的取值范围;
(3)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fdbd96fac44a76334909df9074d1a97.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/996d9e02187335faf7689f1611ab331f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d9aa7d4c35ca378a4b765eda910d490.png)
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2024-04-03更新
|
720次组卷
|
4卷引用:江苏省邗江中学2023-2024学年学年高二下学期期中考试数学试题