1 . 已知函数
.
(1)若曲线
在
处的切线过点
,求
的值;
(2)若
有两个极值点
,若
,求正实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cba3934fb0e785780c7f2a72f3ac9583.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43db00e106c7d08a76a7ba71ca5e63d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acf84052b8ea411842f61c1f90b75fcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23d56c3645854b9329fc9d2d4f065285.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2 . 已知函数
.
(1)当
时,求函数
的单调区间;
(2)若
在
上只有一个极值,且该极值小于
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5811cf06dcaca97390f2d1eeaaf1769.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](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/ad2edd8edcb21bd41584daf9bb95a5c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41a0829c6e21d9c35d48417fb03c9d56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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3 . 已知函数
,其中
.
(1)求函数
的极值;
(2)若函数
有4个零点,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c253250158e5f569496aacb7d2bf29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0f29c28532a94af3930e20193e3010.png)
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2023-03-29更新
|
542次组卷
|
3卷引用:新疆乌鲁木齐地区2023届高三二模数学(文)试题
名校
4 . 已知函数
.
(1)若
,
,求实数a的取值范围;
(2)设
是函数
的两个极值点,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16cc71eacaec8e1aaeffec91d19518fa.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebc1d8bb31485daaab989fb4368db6eb.png)
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2023-03-29更新
|
2884次组卷
|
8卷引用:江苏省八市(南通、泰州、扬州、徐州、淮安、连云港、宿迁、盐城)2023届高三二模数学试题
江苏省八市(南通、泰州、扬州、徐州、淮安、连云港、宿迁、盐城)2023届高三二模数学试题(已下线)押新高考第22题 导数综合解答题(已下线)江苏省八市2023届高三二模数学试题变式题17-22专题07导数及其应用(解答题)江苏省南京市金陵中学2022-2023学年高二下学期期末数学试题浙江省宁波市余姚中学2023-2024学年高二上学期第一次质量检测数学试题江苏省八市2023届高三下学期第二次调研测试数学试题四川省宜宾市第六中学校2024届高三上学期期末数学(理)试题
解题方法
5 . 已知函数
有两个极值点
.
(1)求
的取值范围;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d06aee1856f9f2023dacd2ebe8fa8291.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/330d2f97f3edf7195d7389b56421a7fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2023-03-29更新
|
1027次组卷
|
4卷引用:四川省乐山市2023届高三下学期第二次调查研究考试数学(理)试题
名校
6 . 已知函数
.
(1)证明:当
时,
;
(2)设
为正实数且
.
(i)若
,证明:
;
(ii)若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7fea324edb8150948d6dc43521d7d35.png)
(1)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/636289ad84b4a3a51095dd32ca201f94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2958030ec9d7543dda1f529593a915e2.png)
(i)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efdc0e0ca559f0f1af6127545f356fa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/029e4c2994ddc8ec41c0df310d97c1e2.png)
(ii)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be97cd1c7111b654d87d8fbb63b6a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98142ea0f193bf24f84230a7251476fc.png)
您最近一年使用:0次
7 . 已知函数
(
).
(1)讨论函数
的单调性;
(2)若
两个极值点
,
,且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be893e93ba687d0b61c26578b1e93a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)讨论函数
![](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/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0551890086e3d079be6ab9cae5ffd42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e21ac584efecd770c2dd9d2e83803a.png)
您最近一年使用:0次
解题方法
8 . 已知不等式
对
恒成立,则
的取值范围为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bad259d2d8c8c16e879492a5fa3e6ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e62cb6813979895f443daa979830f1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
9 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3a2a3a9332784cf4de0693873c6e0ac.png)
(1)若
,求不等式
的解集;
(2)若
存在两个不同的零点
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3a2a3a9332784cf4de0693873c6e0ac.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3318f309d1718d5deb88623e5b39a7b3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b916df8bdd03ba4a31c0b8470d13436.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/850ce1c2fa0dad36290697b842080630.png)
您最近一年使用:0次
2023-03-27更新
|
916次组卷
|
3卷引用:湖南省部分学校2022-2023学年高二下学期3月联考数学试题
2023高三·全国·专题练习
解题方法
10 . 设函数
,曲线
恒与x轴相切于坐标原点.
(1)求常数b的值;
(2)当
时,
恒成立,求实数a的取值范围;
(3)求证:
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d898c0ea26601b90dccfb8c11ae4712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(1)求常数b的值;
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3e46371f310e03a153a1698aad9d4c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b2c6a921ae22e949f061a8e775a87e6.png)
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