名校
解题方法
1 . 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
|
688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
2 . 已知正项数列
的前
项和为
,
.
(1)记
,证明:数列
的前
项和
;
(2)若
,求证:数列
为等差数列,并求
的通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
(1)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf114725ab617af515bf9d2571402106.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9928e46511e601913619a427ded84a3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e7e6e9c815b0716de4f5515e4370f77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25cbe66fe4e84b4022721122baab4a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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2023-08-29更新
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810次组卷
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3卷引用:浙江省A9协作体2023-2024学年高三上学期暑假返校联考数学试题
3 . 已知函数
有两个零点
.
(1)证明:
;
(2)求证:①
;②
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b424742aa4e1156cd537d7aa42400d32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac64762b5cb5207bf6ae18f0b06c180.png)
(2)求证:①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9db94fb265b921c85788bbf9f6e32b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ada28d365e8363aae387a32bf9ac70e.png)
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4 . 已知
,
.
(1)求
在
处的切线方程;
(2)求证:对于
和
,且
,都有
;
(3)请将(2)中的命题推广到一般形式,井用数学归纳法证明你所推广的命题.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7f9b35017daa8b524c5717a355834a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd5cdde751120c6deab563a6f7f8cf05.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c3319647314c3b6d82958a909acd2a.png)
(2)求证:对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65fd2742daefe770eca5c2270b504f9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3f97f4caf938dc3b05889a363ab8ee0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a85ea4968343b0d94ed2fe01b535.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b23755a25b5bf295b3533dc94f70651f.png)
(3)请将(2)中的命题推广到一般形式,井用数学归纳法证明你所推广的命题.
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5 . 已知函数
.
(1)证明:函数
在区间
上有2个零点;
(2)若函数
有两个极值点:
,且
.求证:
(其中
为自然对数的底数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a480c757668bd8d3177a7a2fe1049d25.png)
(1)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1613d377a07850c72cbec354b7a3000f.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e093425cab3a441afb189d86513d6c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987b5662225a45d45f3729b13ea472d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2976d45a26ec77149a05553e8eb13efb.png)
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2023-02-10更新
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3卷引用:浙江省金华十校2022-2023学年高三上学期期末数学试题
名校
解题方法
6 . 记
为数列
的前
项和,已知
,
是公差为2的等差数列.
(1)求证
为等比数列,并求
的通项公式;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b1b49f156aa615ce69573eaca033ac.png)
(1)求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e2de706dc5f0439b989273a5367f63a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3694c9fe00e599bcc063447afcf1cdf3.png)
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7 . 已知函数
与
有相同的最大值(其中e为自然对数的底数).
(1)求实数
的值;
(2)证明:
,都有
;
(3)若直线
与曲线
有两个不同的交点
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a889ce5a83ca52532baee3ab4ab405.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eada1c2d3a9e1745f3bdf04d160c80a.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/216a513198e3c6a9f900f4b24433788d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447d6f62c09c1d05346fd16a24159f6e.png)
(3)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9034a9453ec63e9486fa791b869ac54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89f4eff3125c5e63a994ba1ad5be58e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/587a0bc676e5c9484e9b6183aa788f5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/124f539f92bfa4ddaaeb00496c386186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ec20f97a849f48988a3307945fb6df4.png)
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2022-10-12更新
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2卷引用:浙江省十校联盟2022-2023学年高三上学期10月联考数学试题
8 . 已知正项数列
满足
,
(
,
).
(1)写出
,
,并证明数列
是等差数列;
(2)设数列
满足
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13a6e1d671215fc96e4bee3541d1096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17327a6b5d4041e2f6461632d05c2f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1933b7c3ace69622339353431c519b13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
(2)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/385275d29d8c8a7841eaeaa3dfab2cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e6cf32047f00fd08abca695ec2642d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef7d44e9a09ac6bc40f01d1ae6c33f2d.png)
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解题方法
9 . 对于正实数
有基本不等式:
,其中
,为
的算术平均数,
,为
的几何平均数.现定义
的对数平均数:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9b454c722316d2e530e935987adcb81.png)
(1)设
,求证:
:
(2)①证明不等式:
:
②若不等式
对于任意的正实数
恒成立,求正实数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1f53d48a9ad9f88f4b3c14f2637d3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12b0bcbf744c3da99e6488f8e66cb8c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee128ea692363f9a7b0cf0958e5f74e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b9514b5e245327b05261ac9a946063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9b454c722316d2e530e935987adcb81.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/855eaf612ac4e4505948ee0a1c3c080e.png)
(2)①证明不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8188a2ffd328c07a359ea9be8102a70.png)
②若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b0a551c4d6741cae6d513122166db90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aff93e03b22c6053550486ea4e911c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2022-05-11更新
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6卷引用:浙江省宁波市十校2021-2022学年高三上学期期末联考数学试题
2019高三·江苏·专题练习
10 . 利用基本不等式证明:已知
都是正数,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb750904ec9f5877dac7638e45e45936.png)
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15卷引用:专题7.4 基本不等式及其应用(讲)-浙江版《2020年高考一轮复习讲练测》
(已下线)专题7.4 基本不等式及其应用(讲)-浙江版《2020年高考一轮复习讲练测》(已下线)专题7.3 基本不等式及其应用(讲)-江苏版《2020年高考一轮复习讲练测》(已下线)专题2.2 基本不等式及其应用(讲)-2021年新高考数学一轮复习讲练测(已下线)专题2.2 基本不等式及其应用(精讲)-2021年新高考数学一轮复习学与练(已下线)专题2.2 基本不等式及其应用(讲)- 2022年高考数学一轮复习讲练测(新教材新高考)(已下线)第04讲 基本不等式及其应用(十大题型)(讲义)【新教材精创】3.2.1+基本不等式的证明+学案-苏教版高中数学必修第一册【新教材精创】3.2.1+基本不等式的证明+教学设计-苏教版高中数学必修第一册陕西省咸阳市武功县2020-2021学年高二上学期期中数学试题陕西省汉中市部分高中2020-2021学年高二上学期期中数学试题(已下线)第02讲 基本不等式(教师版)-【帮课堂】2021-2022学年高一数学同步精品讲义(人教A版2019必修第一册)2.1.2基本不等式(已下线)第07讲 基本不等式-【暑假自学课】(人教A版2019必修第一册)(已下线)2.2 基本不等式(第1课时)(导学案)-【上好课】(已下线)2.2 基本不等式(第1课时)(分层练习)-【上好课】