名校
1 . 已知函数
,其中
,函数
在
上的零点为
,函数
.
(1)证明:
①
;
②函数
有两个零点;
(2)设
的两个零点为
,证明:
.
(参考数据:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7495c0f25cf04e5e59bb4ae43ffc4fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c940cb46e4a6eae0b7172414c965b66f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c353f6bf5422164ef1496838ba1e6de0.png)
(1)证明:
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ffa38ec984cae2089a6061c5b231dc5.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05f127c78da4fd62e8e98f2262400bda.png)
(参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2995cf1665e01b853555e62aeaf0ac31.png)
您最近一年使用:0次
2022-12-16更新
|
1827次组卷
|
4卷引用:T8(华师一附中、湖南师大附中等)2023届高三上学期第一次学业质量评价数学试题
2 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c3876a78d1c0f3b0eb07825c34d1a5d.png)
(1)若
,过点
作曲线
的切线l,求切线l的方程;
(2)若
,
是函数
的两个不同的极值点,求证:
;
(3)
时,
对
恒成立,证明不等式
对任意的正整数n都成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c3876a78d1c0f3b0eb07825c34d1a5d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c10f14aae6fb21e047ecb39cdf40c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若
![](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/051c9ada827d18c8377743299d3761df.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb9374a0245ffdcb4b23bd8bd5b662a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bad5c8a4e4bad474651c0a61de820ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fada3f2d5821bea73b3f22b25a07a8a7.png)
您最近一年使用:0次
解题方法
3 . 设
,过
斜率为
的直线与曲线
交于
,
两点(
在第一象限,
在第四象限).
(1)若
为
中点,证明:
;
(2)设点
,若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e34f42b3be15518c29e3689c9fe6d6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b62769b7177ef4bc952dc1dd51d6b510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db192285632d1991b4ee7a003a52205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ffbb4e6b92463a41bd9460dac6b1ca7.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c664dcdcf88a834707b415061bed5dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d5592a72ca90eeb5a9267340c61c673.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc329b32ecf0f0532d09a8a21343e8cb.png)
您最近一年使用:0次
解题方法
4 . 已知函数
.
(1)若
是函数
的极值点,证明:
;
(2)证明:对于
,存在
的极值点
,
满足
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1947fd8b1e5fa9096c13256fdb3a23ed.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6133358b60e493e01a4c1c0a48d7b89e.png)
(2)证明:对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d12d0bd9afdd4e53ff37f5bfcaa1106c.png)
![](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/1974c74aa530c586016005f0b11c82dd.png)
您最近一年使用:0次
名校
解题方法
5 . 已知函数
的图像记为曲线
.
(1)过点
作曲线
的切线,这样的切线有且仅有两条.
(ⅰ)求
的值;
(ⅱ)若点
在曲线
上,对任意的
,求证:
.
(2)若
对
恒成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8518085291414deb61dfba8a4e29012d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(1)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0490c467499b3b82f8b5b8bea186d59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/219ba6c8a1b54598db1a78cab28d9d30.png)
(ⅱ)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1376168658dbe7f5b7f4d75fb1db545a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d1d0f80f5f930fc3c16e93a9d988fae.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a33afdab2ab19bd9a7eb10a925a89294.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
您最近一年使用:0次
2022-06-03更新
|
912次组卷
|
3卷引用:浙江省宁波市镇海中学2022届高三下学期6月仿真模拟数学试题
名校
6 . 已知函数
,且正数a,b满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45e3adfad77798d50f3cc64920fab44.png)
(1)讨论f(x)的单调性;
(2)若
的零点为
,
,且m,n满足
,求证:
.(其中
……是自然对数的底数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b06e634430688fb60f1534d658f4379b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45e3adfad77798d50f3cc64920fab44.png)
(1)讨论f(x)的单调性;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a60699e3e7a4c73c8a5e4585013e4da6.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/0288311544d306cfa4b9e56ae707eeff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f145ad1f0a2e33f6d0cb48ea4caefba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9405dfcca25b76af059fb4c308983eae.png)
您最近一年使用:0次
名校
7 . 已知直线l与曲线
相切于点
.证明:
(1)l与曲线
恰存在两个公共点
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbb32c12e8fcdd27cdffa88439cc8af8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1282489de3b4916175dd456c8e44b4f4.png)
(1)l与曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbb32c12e8fcdd27cdffa88439cc8af8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9504e8c607c37583a51c86327a03785a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea87de72c7d5286122f0843a1265bf28.png)
您最近一年使用:0次
名校
解题方法
8 . 已知数列
和
,
且
,函数
,其中
.
(1)求函数
的单调区间;
(2)若数列
各项均为正整数,且对任意的
都有
.求证:
(ⅰ)
;
(ⅱ)
,其中
为自然对数的底数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee03c109e4f64f3539de74ef30f06fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc65a38fceb3231eada88b96f0c63d14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e97769855336d73371930df1f187875e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0b0b716fda9b1efd9e47e2d80543f2d.png)
(ⅰ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf779c918958c14824cd7d952a4bb4bc.png)
(ⅱ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/462a81927ad910cd66ae9a5fd5813502.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797bbd18359c9a29842b39109b3a0aac.png)
您最近一年使用:0次
2022-04-07更新
|
922次组卷
|
3卷引用:安徽省滁州市2022届高三下学期第二次教学质量检测理科数学试题
9 . 已知函数
.
(1)若
是
的极值点,求a;
(2)若
,
分别是
的零点和极值点,证明下面①,②中的一个.
①当
时,
;②当
时,
.
注:如果选择①,②分别解答,则按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/719a6309ef24da108180f866ebbc052c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/880a0146023767282bffe07f7c22f613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34efece0b628625e78e19c389556d48d.png)
注:如果选择①,②分别解答,则按第一个解答计分.
您最近一年使用:0次
2022-12-26更新
|
2057次组卷
|
7卷引用:2022年9月《浙江省新高考研究卷》(全国I卷)数学试题(五)
2022年9月《浙江省新高考研究卷》(全国I卷)数学试题(五)湖南省株洲市二中教育集团2023届高三上学期1月期末联考数学试题(已下线)技巧04 结构不良问题解题策略(精讲精练)-1(已下线)专题4 劣构题题型(已下线)高考新题型-一元函数的导数及其应用重庆市万州第二高级中学2023届高三三诊数学试题(已下线)技巧04 结构不良问题解题策略(5大题型)(练习)
10 . 已知函数
,其中
为自然对数的底数,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11204e2fb6e560bf7a4ca26eaebfc526.png)
(1)若对
,
恒成立,求实数
的值;
(2)在(1)的条件下,
(i)证明:
有三个根
;
(ii)设
,请从以下不等式中任选一个进行证明:
①
;②
.
参考数据:
,
,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e20a21999ea818acdfb48d3641f70d3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11204e2fb6e560bf7a4ca26eaebfc526.png)
(1)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad5fe274cfc8da2dacfb65801f344ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)在(1)的条件下,
(i)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54866b75eec154dad01cf0d914708149.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
(ii)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1310a7a80d1f8751a3f8cafe7f8c8b4.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10f5386c00768eb3d5cde11383cff0a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/319905307025d367558a59877837c331.png)
参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070f72497850d3f2b5815b363cf459b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6782279b69a72f9ff98648774bf9033d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffaf85e9c942f037e38d5b87f9f28cb5.png)
您最近一年使用:0次