解题方法
1 . 若函数
有且仅有一个极值点
,函数
有且仅有一个极值点
,且
,则称
与
具有性质
.
(1)函数
与
是否具有性质
?并说明理由.
(2)已知函数
与
具有性质
.
(i)求
的取值范围;
(ii)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d0112af71e654cc86c8d5056fdbb2a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/861433f0c552c5bef8d8c03682d91858.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7091d529281abff275ef19b9197445a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d0112af71e654cc86c8d5056fdbb2a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/861433f0c552c5bef8d8c03682d91858.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d77fbccb3ae7f7836d16dfb4952e4cc.png)
(1)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d2a4a953934dcaf87f2ce64c6dab4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0482361cb97998139441fe0deb23578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a9d58d2cef0d86281fdde5895a129a6.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b00477b17f5248a7301290d260a6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5eef1c41c5ed94a4944e062bcfeeeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36ea881341f274252964bc3a9fc5693.png)
(i)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(ii)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926521541bf1c18ac229afc5ec2d9b51.png)
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名校
解题方法
2 . 一个完美均匀且灵活的项链的两端被悬挂, 并只受重力的影响,这个项链形成的曲 线形状被称为悬链线.1691年,莱布尼茨、惠根斯和约翰・伯努利等得到“悬链线”方程
,其中
为参数.当
时,就是双曲余弦函数
,类似地双曲正弦函数
,它们与正、余弦函数有许多类似的性质.
(1)类比三角函数的三个性质:
①倍角公式
;
②平方关系
;
③求导公式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad7736e047d89385512f5715c4434a4.png)
写出双曲正弦和双曲余弦函数的一个正确的性质并证明;
(2)当
时,双曲正弦函数
图象总在直线
的上方,求实数
的取值范围;
(3)若
,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f07f8015f0a035e80a166092be0b7318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4580cc037c0c760c728cdbb74a8154c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ddb06bbda9da4a045750637f4215593.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ee7a18d65bcc8b5a94292365009462e.png)
(1)类比三角函数的三个性质:
①倍角公式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/190a6011b263200d13f62e636398e26d.png)
②平方关系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9da8f21743a3a14ce326eaeecb86a417.png)
③求导公式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad7736e047d89385512f5715c4434a4.png)
写出双曲正弦和双曲余弦函数的一个正确的性质并证明;
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b9213864ba0aa83b0f11be6ad6ed6bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db1c01b5cfd9630ca3e7d8f48ada6ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2a602db560a460408aae63f5cde96d6.png)
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2卷引用:浙江省杭州市西湖高级中学2024届高三下学期数学模拟预测数学试题
名校
解题方法
3 . 帕德近似是法国数学家亨利•帕德发明的用有理多项式近似特定函数的方法.给定两个正整数
,函数
在
处的
阶帕德近似定义为:
,且满足:
,
,
,…,
. 已知
在
处的
阶帕德近似为
.注:
,
,
,
,…
(1)求实数
的值;
(2)当
时,试比较
与
的大小,并证明;
(3)定义数列
:
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db527571cfd256c515424c6f9d114284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab984fa2801f780e08903b339c9d041f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d8ef6c18c8edf9f4c781376d5ce400a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51a8ad090ff2c19019f6efc799ae39b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c59886eb50089cc9bee3afa10282fdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/089b65749e52fc6346eab9bb5c49e5b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/699f767ccf837c2bf8019d03451849c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d307aa65d930bc8e51835eb147de513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e07c900467299135fcaa990fd4f7f88b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d5f39870cf13db62e51ef501ce4c347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab14b9de29d16032cbf69ec5a013d3cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f77f98b0044dc829092b2d1a4a88e5f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8fbc7623b9264d45a0ec4b440aef7c.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047056c99b39c70fa40d3c8178e5b631.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9966dfe9109671c587892bd32f0b6699.png)
(3)定义数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ea8d0e50065114b05ef2dc1ea1129cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d99c7518bbf5813ffbc18696c753ba9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b10e4e524dd686e35ab3e6482192a201.png)
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2024-05-31更新
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704次组卷
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3卷引用:浙江省绍兴市上虞区2023-2024学年高三下学期适应性教学质量调测数学试卷
名校
4 . 已知函数
.
(1)当
时,证明:
;
(2)当
时,
,求
的最大值;
(3)若
在区间
存在零点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fb69579884d02df940d0ee1577b5e1a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf9e6bfd0a580544713a59ed282bfe4a.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/213f600bc788894ff91df0356abb84f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
5 . 如图,对于曲线
,存在圆
满足如下条件:
①圆
与曲线
有公共点
,且圆心在曲线
凹的一侧;
②圆
与曲线
在点
处有相同的切线;
③曲线
的导函数在点
处的导数(即曲线
的二阶导数)等于圆
在点
处的二阶导数(已知圆
在点
处的二阶导数等于
);
则称圆
为曲线
在
点处的曲率圆,其半径
称为曲率半径.
(1)求抛物线
在原点的曲率圆的方程;
(2)求曲线
的曲率半径的最小值;
(3)若曲线
在
和
处有相同的曲率半径,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
①圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
②圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
③曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80999542b0b1e42a23e95363667399a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92637a7e7dab461f173112dfc8fa7390.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98b40504aef42ec81163e9581efbd83b.png)
则称圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
(2)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f42b2a9736c8943106472a7398d2892.png)
(3)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eae1b87c23b45ce5e5e74d5b1d73234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c3c0b12482cc93dee05fbf69350cd99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2f455ecf39764829b0bfe0a8675f1a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cbd8e10a553d5607bb8906b2cf64aaf.png)
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3卷引用:浙江省温州市2024届高三第二次适应性考试数学试题
解题方法
6 . 已知函数
.
(1)若
时,
在其定义域内不是单调函数,求a的取值范围;
(2)若
,
时,函数
有两个极值点
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74d6f91e36b865ea3f3b30244b2114b3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aed39f5aca78934fb383402433fe549.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f4c78214e43a8b93f2a57072033cbcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.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/9683faee732f4eedf79bed4e1e8a3c6c.png)
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解题方法
7 . 已知函数
有两个不同的零点
.
(1)求实数
的取值范围;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58f39c41fdb528c5568ae47945d093e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90b0ebd86fc43bcf6d8261652ffef3d0.png)
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2024-02-12更新
|
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|
3卷引用:浙江省金丽衢十二校2023-2024学年高三上学期第一次联考数学试题
名校
8 . 函数
.
(1)求函数
的单调增区间;
(2)当
时,若
,求证:
;
(3)求证:对于任意
都有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c65861e5849c6cf0addc3b19d9a34650.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d6d9f798a99a7b28888820716549f7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f78ae07b1452e4f9dd8ba93db61d17.png)
(3)求证:对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c873cf33f90999dca0e29fe113db34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b33287e894efdc4da249051e912fc5bb.png)
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2024-01-03更新
|
1387次组卷
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6卷引用:浙江省嘉兴市第一中学2024届高三第一次模拟测试数学试题
浙江省嘉兴市第一中学2024届高三第一次模拟测试数学试题广西2024届高三高考桂柳鸿图数学模拟金卷试题(四)江西省上饶市婺源天佑中学2024届高三上学期1月考试数学试题(已下线)模块四 第五讲:利用导数证明不等式【练】(已下线)压轴题01集合新定义、函数与导数13题型汇总 -1广西''贵百河“2023-2024学年高二下学期4月新高考月考测试数学试卷
解题方法
9 . 已知函数
,
,
为自然对数底数.
(1)证明:当
时,
;
(2)若不等式
对任意的
恒成立,求整数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79bc0dd2bf343af8938d4ce15f5134a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55d2caa7446da913b76747bab136fcc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11204e2fb6e560bf7a4ca26eaebfc526.png)
(1)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c9b59d1e47d607ffbc41153a74f3f08.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acda6b6464db27e1ec18a1522406d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
10 . 已知函数
,其导函数为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cfa45e7ce4825447b1f30b3b14e20ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
A.曲线![]() ![]() ![]() |
B.![]() |
C.使得![]() ![]() |
D.![]() ![]() ![]() |
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