名校
解题方法
1 . 已知函数
,曲线
在点
处的切线方程为
.
(1)求a,b的值;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2358cf09e2bd59c513e1f9709130fa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87490be8d0cdb7bc6c39d1a37f3bc335.png)
(1)求a,b的值;
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff781f4426f9dcce29434049189f6918.png)
您最近一年使用:0次
2020-11-11更新
|
895次组卷
|
3卷引用:四川省阆中东风中学校2020-2021学年高三上学期第三次月考调研检测数学(文)试卷
四川省阆中东风中学校2020-2021学年高三上学期第三次月考调研检测数学(文)试卷陕西省安康市2020-2021学年高三上学期10月联考理科数学试题(已下线)模块三 大招8 不等式证明——分割与放缩
名校
解题方法
2 . 已知椭圆
的离心率为
,
分别为椭圆的左、右焦点,点
为椭圆上一点,
面积的最大值为
.
(1)求椭圆
的方程;
(2)过点
作关于
轴对称的两条不同直线
分别交椭圆于
与
,且
,证明直线
过定点,并求出该定点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002ed1ebb2cb936e10ab478789f91c7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4fd4da08956db1f206c8ea026f4e52d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fba1e1ca5040060dde64c667ec432a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f05eb4c4c6f9e6a702735bc0b5122d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
2020-10-23更新
|
932次组卷
|
5卷引用:四川省南充市白塔中学2020-2021学年高三上学期期中数学文科试题
四川省南充市白塔中学2020-2021学年高三上学期期中数学文科试题河北省石家庄正定中学2021届高三上学期第二次半月考数学试题湖北省荆门市龙泉中学2020-2021学年高三上学期11月月考数学试题广东省高州市第一中学2020-2021学年高二上学期第二次月考数学试题(已下线)专题3.1椭圆(B卷提升篇)-2020-2021学年高二数学选择性必修第一册同步单元AB卷(新教材人教A版,浙江专用)
3 . 已知函数
,其中
.
(1)函数
在
处的切线与直线
垂直,求实数a的值;
(2)若函数
在定义域上有两个极值点
,
,且
.
①求实数a的取值范围;
②求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f04fe3f193e37792ef318de256a7fd7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3aa3adcb154f6144903d456289ecb0f.png)
(2)若函数
![](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/26d8dafc71b106f39f4e15442220897b.png)
①求实数a的取值范围;
②求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c1db4e496877070ca07cc96d568c4a.png)
您最近一年使用:0次
2020-06-15更新
|
3692次组卷
|
5卷引用:四川省南充市白塔中学2024届高三上学期12月月考数学(理)试题
名校
4 . 如图,已知抛物线
的焦点是
,准线是
,抛物线上任意一点
到
轴的距离比到准线的距离少2.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/16/6f3e05ca-4e70-41a9-82d7-1cf6a1f8f11c.png?resizew=150)
(1)写出焦点
的坐标和准线
的方程;
(2)已知点
,若过点
的直线交抛物线
于不同的两点
(均与
不重合),直线
分别交
于点
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df40ba57bb5819b4aaa38d514500052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/16/6f3e05ca-4e70-41a9-82d7-1cf6a1f8f11c.png?resizew=150)
(1)写出焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94397da9a3bad1705439928b0afd594f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d4a832771ba45d407f31000c8fcf37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0451f9e4f4db57e9ae978cdc27325698.png)
您最近一年使用:0次
2020-03-19更新
|
484次组卷
|
4卷引用:2020届四川省南充高级中学高三2月线上月考数学(文)试题
2020届四川省南充高级中学高三2月线上月考数学(文)试题2020届四川省南充高级中学高三2月线上月考数学(理)试题2020届四川省阆中中学高三下学期第一次在线考试(3月)数学(理)试题(已下线)专题05 圆锥曲线中的证明问题、探究性问题(第五篇)-2020高考数学压轴题命题区间探究与突破
名校
5 . 函数
,
.
(1)若
在点
处的切线与直线
平行,求
的值;
(2)若
,设
,试证明
存在唯一零点
,并求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427c0e1338814bb5431c3ab7e2d3b9d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89afb6197246c05433bc7c411e2eb867.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f107d87b09135ba6960ee7bb57a4df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f88192ab3bf3665580e4a42b28eb154.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b979396a703fb14715ba39232f5786a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b7393fc425948d4261bb6c7d67f88e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd96398a5027d22e7b6720f620ba8500.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1165f62b4b649c050693c4e66a88780.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
2020-07-07更新
|
259次组卷
|
2卷引用:四川省阆中中学2020届高三全景模拟(最后一考)数学(理)试题
名校
6 . 已知函数
,其中
.
(Ⅰ)当
时,求函数
的单调区间;
(Ⅱ)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd608291e942a3b96cf2d410f03d908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(Ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6000b174147cec2de26041837aec1b3.png)
您最近一年使用:0次
2020-07-04更新
|
637次组卷
|
4卷引用:四川省南充市阆中市东风中学2019-2020学年高三上学期9月月考数学试题
7 . 已知函数
.其中
.
(1)求
的单调区间;
(2)设
,
是
的两个极值点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a3dfdc23dcddee61c98eddb42db9b71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.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/b61d016444ef312f5c4fc8cd414c70c5.png)
您最近一年使用:0次
8 . 已知函数
.
(1)求函数
的定义域;
(2)证明:函数
在区间
上单调递减;
(3)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/402e0198cefda497da3a540be343688e.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4013fe4e40d24be11716d97cba712037.png)
您最近一年使用:0次
解题方法
9 . 已知椭圆
:
经过点
,且离心率为
,
(1)求椭圆
的方程;
(2)过点
的直线与椭圆
交于不同两点
、
.求证:直线
和
的斜率之和为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71885f023172807ad43f2c9a670aa960.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f13bf66fc845b115de4ec45b4be0e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
您最近一年使用:0次
2020-05-22更新
|
298次组卷
|
2卷引用:2020届四川省南充市高三珍断性测试理科数学试题
名校
解题方法
10 . 已知函数
(
,且
).
(1)求函数
的极值点;
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffcf1d67ef8f05dbbe6eb1faab6a8370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4b4b9a0894542d777ff824d7f7284e5.png)
您最近一年使用:0次
2020-03-23更新
|
482次组卷
|
4卷引用:2020届四川省阆中中学高三下学期第一次在线考试(3月)数学(文)试题