名校
1 . 已知两数
.
(1)当
时,求函数
的极值点;
(2)当
时,若
恒成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adf06fda29919d61c31119ab933220f9.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b02f266bd253738e315e84231235f0d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a882037b9ce104ecc496e0f31a139361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4c4bcd8ba2c76e6cccb1e96bd09702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/443dd6f26617f1bf1b0090e61165a939.png)
您最近一年使用:0次
2020-08-18更新
|
259次组卷
|
8卷引用:贵州省思南中学2019-2020学年高二5月摸底数学(理)试题
名校
2 . 已知椭圆
左右焦点为
,左顶点为A(-2.0),上顶点为B,且∠
=
.
(1)求椭圆C的方程;
(2)探究
轴上是否存在一定点P,过点P的任意直线与椭圆交于M、N不同的两点,M、N不与点A重合,使得
为定值,若存在,求出点P;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca2edafe0d1ae71d22287fa55f83cac5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/742211c2ef01c6638c4db28003abbd51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
(1)求椭圆C的方程;
(2)探究
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e6f0e94393fc6bbd9b4b83ede534ac.png)
您最近一年使用:0次
名校
3 . 已知椭圆的中心在原点,焦点在
轴上,一个顶点
,且右焦点到直线
的距离为
.
(1)求椭圆的方程.
(2)若点
为椭圆的下顶点,是否存在斜率为
,且过定点
的直线
,使
与椭圆交于不同两点
,
且满足
? 若存在,求直线
的方程;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44adf7b801d750d278aa07d1c1fc73ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b194fdbfbd2ffa5f5651ce9c486a791.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
(1)求椭圆的方程.
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e808df9b7790498306544b1de50f3e75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/958a2b4fb7851f034baa6818133ce8e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/7d651a50c0ac39dbfd76a5718036c554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89cf2d2fdc3bdf7b79550923ef8b61fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2011·河北唐山·一模
名校
解题方法
4 . 设直线
与抛物线
交于
、
两点,已知当直线
经过抛物线的焦点且与
轴垂直时,
的面积为
(
为坐标原点).
(Ⅰ)求抛物线的方程;
(Ⅱ)当直线
经过点
且与
轴不垂直时,若在
轴上存在点
,使得
为等边三角形,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c2b37481171cec2a55e18a19d21dcc.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65a9354a07397b21c33820fc2590e814.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(Ⅰ)求抛物线的方程;
(Ⅱ)当直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35beeddec6af44c0d02d98509408037d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://img.xkw.com/dksih/QBM/2011/6/5/1570238061150208/1570238066688000/STEM/3285b6fc-a1aa-432a-99c2-84e07a1209ff.png?resizew=247)
您最近一年使用:0次
2016-11-30更新
|
828次组卷
|
4卷引用:2011年河北省唐山一中高考冲刺试卷2(数学文)
(已下线)2011年河北省唐山一中高考冲刺试卷2(数学文)贵州省铜仁市思南中学2021届高三第十二次考试数学(理)试题贵州省铜仁市思南中学2021届高三第十二次考试数学(文)试题(已下线)2021年新高考浙江数学高考真题变式题17-22题
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:贵州省铜仁市伟才学校2019-2020学年高二下学期期末考试数学(理)试题
名校
解题方法
6 . 在平面直角坐标系中,已知曲线
上的动点
到点
的距离与到直线
的距离相等.
(1)求曲线
的轨迹方程;
(2)过点
分别作射线
、
交曲线
于不同的两点
、
,且以
为直径的圆经过点
.试探究直线
是否过定点?如果是,请求出该定点;如果不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50154acc6ad77c6c777fffe3a08afb59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/236a066876764d090523afe0ea734a21.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e584f799ea554fc5533925ead4672501.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2014·湖南怀化·二模
7 . 如图,椭圆
的长轴长为
,点
、
、
为椭圆上的三个点,
为椭圆的右端点,
过中心
,且
,
.
![](https://img.xkw.com/dksih/QBM/2014/6/3/1571749050974208/1571749056856064/STEM/aa990d5460e143d597725fc1f1443f44.png)
(1)求椭圆的标准方程;
(2)设
、
是椭圆上位于直线
同侧的两个动点(异于
、
),且满足
,试讨论直线
与直线
斜率之间的关系,并求证直线
的斜率为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c8525a7c1b700128cf34e28a5a50c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1136baa1259358a8569f3d50a259ab59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e774156aee9ca35e5c95411301557ac2.png)
![](https://img.xkw.com/dksih/QBM/2014/6/3/1571749050974208/1571749056856064/STEM/aa990d5460e143d597725fc1f1443f44.png)
(1)求椭圆的标准方程;
(2)设
![](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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2303997a297935839da8bc070bc3c3d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
您最近一年使用:0次
2016-12-03更新
|
1916次组卷
|
6卷引用:2014届湖南省怀化市高三第二次模拟考试文科数学试卷
解题方法
8 . 已知函数
,
,其中
是自然对数的底数.
(1)判断函数
在
内的零点的个数,并说明理由;
(2)
,
,使得
成立,试求实数
的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44569da5a7ada0abe7d08044b4ad93ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e332501ec8d6872983be1faef7ee74c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00f180718c0b7b3de58a11c9b8b70621.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4791ba93f976438f40a8f985899922.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65532a1b6aec1d7eade9dbb083cbbca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d90fc9dbb258672345deb4ca6fe1bd3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-09-10更新
|
164次组卷
|
8卷引用:【全国市级联考】贵州省铜仁市西片区高中教育联盟2017-2018学年高二下学期期末考试数学(文)试题
【全国市级联考】贵州省铜仁市西片区高中教育联盟2017-2018学年高二下学期期末考试数学(文)试题山西省孝义市2018届高三下学期名校最新高考模拟卷(一)数学(文)试题(已下线)2018年高考数学备考中等生百日捷进提升系列(综合提升篇) 专题06 导数解答题新疆昌吉市第九中学2018--2019学年高二下学期第一次月考数学试题(已下线)专题15 导数综合练习-2021年高考一轮数学(理)单元复习一遍过(已下线)专题15 导数综合练习-2021年高考一轮数学(文)单元复习一遍过(已下线)专题15 导数综合练习-2021年高考一轮数学单元复习一遍过(新高考地区专用)(已下线)第七章 导数与不等式能成立(有解)问题 专题四 双变量能成立(有解)问题的解法 微点2 双变量双函数能成立(有解)问题的解法(一)
名校
9 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d5e5fb4eb235015697d9163e011497.png)
(1)当
时,求函数
在
处的切线方程;
(2)当
时,判断函数
的单调性;
(3)当
且
时,不等式
在
上恒成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d5e5fb4eb235015697d9163e011497.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302337058242c7b78e3eb4ac7210b7ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679353e656a54993c041ebd39ec7b31b.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97302be62c2bdeabedafc209b5e52883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbff65e0d6dd03542ca1f599f62f4d2a.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302337058242c7b78e3eb4ac7210b7ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5d3b5af4c0dd2434320a9c99a1f49f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7752d3cfd2410d08e980412cfab62496.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b5b76ee3bcd1abe78a0d22df47b4773.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2018-10-14更新
|
390次组卷
|
3卷引用:【全国百强校】贵州省铜仁市第一中学2019届高三上学期第二次月考数学(文)试题
【全国百强校】贵州省铜仁市第一中学2019届高三上学期第二次月考数学(文)试题福建省厦门市湖滨中学2020届高三下学期测试数学(文)试题(已下线)考点17 利用导数研究函数的极值与最值(考点专练)-备战2021年新高考数学一轮复习考点微专题
解题方法
10 . 已知函数
.
(1)求
的单调区间;
(2)若
,都有
,求实数
的取值范围;
(3)证明:
且
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2e9a2215778fa570c7e90cb406f4e5b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e81b4aac721bcd4a49593b48a28a8f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8932999f3efb83ee09f9ab6cd7696e27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
您最近一年使用:0次