解题方法
1 . 已知函数
,
.
(1)若函数
在
上单调递减,求实数
的取值范围;
(2)若函数
的图象在点
处的切线平行于
轴,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03e57c5a28e9106a5ba5256e377f0332.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/552291caa8e199578146622ecd026c3a.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b650820d7bed48ed67a2869ad8c65ff1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c21e62571c3ecccac71d038cc456a6.png)
您最近一年使用:0次
名校
2 . 已知函数
.
(1)若
是
的极值点,求
的单调区间;
(2)若
,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32f4c72f5b70e78bedd95d358d7f2655.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a68b2622e68355eba2198bc5bbffba6.png)
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2021-11-05更新
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966次组卷
|
4卷引用:内蒙古海拉尔第二中学2021-2022学年高三上学期第二次阶段考数学(理)试题
内蒙古海拉尔第二中学2021-2022学年高三上学期第二次阶段考数学(理)试题河北省衡水市武强中学2022届高三上学期第二次月考数学A卷试题(已下线)易错点04 导数及其应用-备战2022年高考数学考试易错题(新高考专用)浙江省2022届高考模拟卷数学试题(三)
名校
解题方法
3 . 已知椭圆
的离心率为
,并且经过点
,A为椭圆T的右顶点,直线l的方程为
,M,N为直线l上任意两点,
分别为点M,N的纵坐标,且满足
,连接
分别交椭圆T于C,D两点.
(1)求椭圆T的方程;
(2)求证:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3b76e364a93cd78537c6c97b88021f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843384d54dfc753f24f7071fd19b97c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97abff83cac650930a5d9aa1cfaf594f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a34aed0fd1f4e43172523daf04d58daa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70ef341f856e9808cc2ce0531128ecb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d42cb68c5c877a455ba7ac0a6b6a651.png)
(1)求椭圆T的方程;
(2)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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2021-05-12更新
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3卷引用:内蒙古赤峰市2021届高三二模 数学(文)试题
内蒙古赤峰市2021届高三二模 数学(文)试题(已下线)第五篇 向量与几何 专题8 帕斯卡定理、布列安桑定理、笛沙格定理、彭塞列闭合定理 微点1 帕斯卡定理与布列安桑定理山西省山西大学附属中学2024届高三上学期9月月考(总第三次)数学试题
解题方法
4 . 已知椭圆
的离心率为
,椭圆
上的点与其右焦点
的最短距离为
.
(1)求椭圆
的标准方程;
(2)若
,
,
为椭圆
上的3个动点,且
的重心是
,求证:
的面积为定值,并求这个定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a200ca2c4af794f4d1c6a5443830b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34e01955f8c8fe2f0041b35d8d602a7.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b62194097ac66a5093c57fca2f5b4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2021-06-06更新
|
660次组卷
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4卷引用:内蒙古自治区赤峰市2020-2021学年高二下学期期末数学(A卷)试题
内蒙古自治区赤峰市2020-2021学年高二下学期期末数学(A卷)试题山东省淄博市2021届高三三模数学试题(已下线)第2章《圆锥曲线与方程》章节复习巩固(提高练)-2021-2022学年高二数学同步训练精选新题汇编(人教A版选修2-1)(已下线)收官卷03--备战2022年高考数学一轮复习收官卷(新高考地区专用)
名校
5 . 已知函数
有两个极值点
,
.
(1)求a的取值范围;
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee191748e82e07a9aed4fa906661cdf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
(1)求a的取值范围;
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f329e4739ba22ed5ef230c633fb9804a.png)
您最近一年使用:0次
2021-05-09更新
|
1242次组卷
|
4卷引用:内蒙古自治区通辽新城第一中学2021届高三第三次增分训练数学(理)试题
内蒙古自治区通辽新城第一中学2021届高三第三次增分训练数学(理)试题东北师大附中2021届高三第四次模拟考试数学(理)试题(已下线)第11讲 双变量不等式:极值和差商积问题-突破2022年新高考数学导数压轴解答题精选精练河南省重点高中2021-2022学年高三下学期阶段性调研联考二理科数学试题
名校
解题方法
6 . 已知曲线
上的点到
的距离比它到
轴的距离大1.
(1)求曲线
的方程;
(2)过
作斜率为
的直线交曲线
于
、
两点;
①若
,求直线
的方程;
②过
、
两点分别作曲线
的切线
、
,求证:
、
的交点恒在一条定直线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2347bec7975dab2b8bce2fd19b1237d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c38bf26faae390a94eaae19793821f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
②过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
您最近一年使用:0次
7 . 已知数列
,且满足
(
且
)
(1)证明新数列
是等差数列,并求出
的通项公式.
(2)令
,设数列
的前n项和为
,求
的最大值,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46b189de482790643b6bacf7827c40be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a44c2fff867afb37d52ef2bb06769c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
(1)证明新数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d82c65a855b1eed9c43e6829f6c3bffb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d5f7c3c5a915e3b6cb513cf2a0ab8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5188d6760683a860adab0cda195cdf80.png)
您最近一年使用:0次
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解题方法
8 . 已知函数
在其定义域内有两个不同的极值点.
(1)求a的取值范围;
(2)设
两个极值点分别为x1,x2,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4e5769a08f583d33dc033c5644aa1b0.png)
(1)求a的取值范围;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73eee2b2d75317db442abb08c6278f5c.png)
您最近一年使用:0次
2021-07-13更新
|
1364次组卷
|
4卷引用:内蒙古赤峰二中2021届高三三模数学(理)试题
内蒙古赤峰二中2021届高三三模数学(理)试题重庆市缙云教育联盟2022届高三上学期8月月度质量检测数学试题河南省驻马店市环际大联考“圆梦计划”2021-2022学年高三上学期阶段性考试(一)数学(理科)试题(已下线)第06讲 极值点偏移:乘积型-突破2022年新高考数学导数压轴解答题精选精练
9 . 已知点
是抛物线
:
的准线上的任意一点,过点
作
的两条切线
,
,其中
、
为切点.
(1)证明:直线
过定点,并求出定点坐标;
(2)若直线
交椭圆
:
于
,
两点,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e48f28aeccf369df5980ac787e9e313f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/438f34bc8b04e8c494b91306ac6fe352.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2dca049735b45fb9b2533c68605eddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(1)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f552e02625ebe3e27ef30aaac7415173.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26a189b08ef38f4893878c56f8414397.png)
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2021-05-16更新
|
616次组卷
|
4卷引用:内蒙古包头市2021届高三第一次模拟考试数学(理)试题
10 . 已知函数
.
(1)当
时,方程
有两个根,求m的取值范围;
(2)若不等式
恒成立,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cf538e2bd38d1bb4a6cb577ad927658.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfd09fb9482124fd35f19b86894648f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047d4ab078dafc06c047bcbf0a6ffaf.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38202d3c8e1457e8dd0a292b3efeaadc.png)
您最近一年使用:0次