名校
1 .
是坐标原点,椭圆
:
的左右焦点分别为
,
,点
在椭圆上,若
的面积最大时
且最大面积为
.
(1)求椭圆
的标准方程;
(2)直线
:
与椭圆
在第一象限交于点
,点
是第四象限内的点且在椭圆
上,线段
被直线
垂直平分,直线
与椭圆交于另一点
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24ff410a277986fc6045c1cb36f89e34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d264c67498dabe140b182616c512b932.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279563c3c055777ce1aa369a2ef54aed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/451b76ad57ec92052a4fc61c691b6dbc.png)
您最近一年使用:0次
2019-12-03更新
|
997次组卷
|
3卷引用:湖北省重点高中联考协作体2019-2020学年高三期中数学(理)试题1
名校
2 . 已知函数
.
(1)求函数
的单调区间;
(2)设函数
,若
时,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/725a62e722f533b3827b8aa120aa5e8c.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/240c7d19a8f1f574b8c06f193b7980c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3155eb542430d6496a68c5aa8ba2ba35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eee31b9dffcd91ff2f5477410bc09f95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2018-10-11更新
|
1580次组卷
|
3卷引用:【校级联考】齐鲁名校教科研协作体湖北、山东部分重点中学2019届高三第一次联考数学(理)试题1
【校级联考】齐鲁名校教科研协作体湖北、山东部分重点中学2019届高三第一次联考数学(理)试题1【校级联考】齐鲁名校教科研协作体湖北、山东部分重点中学2019届高三第一次联考数学(理)试题2(已下线)备战2020年高考数学之考场再现(山东专版)09
名校
3 . 已知函数
恰有3个零点,则实数
的取值范围为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d7dc972ef3cfa95d9a72e61df46e459.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-01-29更新
|
1099次组卷
|
7卷引用:【市级联考】湖北省十堰市2019届高三模拟试题文科数学试题
名校
解题方法
4 . 已知函数
.
(1)若曲线
在
处的切线与直线
垂直,求实数a的值;
(2)若函数
在
上单调递增,求实数a的取值范围;
(3)当
时,若方程
有两个相异实根
,
,
,求证
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7507c1d5b6828fe3d60d88d45aa4df49.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943fecc8fa33ccc1dca0b0cb9e908224.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a248e47163191168a1b363937eebd618.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17e4cd1d4f527d8c2b5832e1eccd7dc8.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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebf6efdf14513762b4f08564f1cdf16c.png)
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2020-04-27更新
|
773次组卷
|
4卷引用:2019届湖北省黄冈市高三下学期3月调研考试数学(文)试题
2019届湖北省黄冈市高三下学期3月调研考试数学(文)试题河南省南阳市第一中学2019-2020学年高二下学期第三次月考(6月)数学(文)试题四川省泸州高级中学2020-2021学年高三上学期9月月考文科数学试题(已下线)调研测试三(A卷 基础过关检测)-2021年高考数学(文)一轮复习单元滚动双测卷
名校
5 . 已知
为坐标原点,椭圆
:
的左、右焦点分别为
,
,右顶点为
,上顶点为
,若
,
,
成等比数列,椭圆
上的点到焦点
的距离的最大值为
.
求椭圆
的标准方程;
过该椭圆的右焦点作两条互相垂直的弦
与
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00df4f17848c072b51e80d427d486e31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a09a8ac969e5cec3be6abf4ff44c692e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce6758b8b074d33ea9e82818593656e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c2bb7be2e9410a16502268fd4c67be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d81bbfb3029de7228939db48d325c305.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e96722ac4606bc95149cf6fcca3b3e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/526253844494fed86429e1390505e0db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f015ed8e497b4394053ddd19683a98f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce6758b8b074d33ea9e82818593656e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e3d2d5bb85f2a81c8ac15231ea8a13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa29fe6cd9eb51c184f6299d437375cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e430f13f42cf2d44aa0f0e20b959684f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad9d33ef9bea1a5ac7e235460568177.png)
您最近一年使用:0次
2019-02-14更新
|
973次组卷
|
2卷引用:【市级联考】湖北省黄冈市2019届高三上学期元月调研理科数学试题
名校
6 . 已知函数
有三个极值点,则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/013b1d60b391fe05e51571c3c07e1681.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.(![]() ![]() | C.![]() | D.(![]() ![]() |
您最近一年使用:0次
2019-09-13更新
|
982次组卷
|
8卷引用:湖北省随州市2018-2019学年高二下学期期末数学(文)试题
湖北省随州市2018-2019学年高二下学期期末数学(文)试题【全国百强校】辽宁省鞍山一中2019届高三高考三模试卷数学(文科)试题(已下线)2019年5月21日 《每日一题》(理科)四轮复习——押高考数学第12题(2)(已下线)2019年5月21日《每日一题》(文科)四轮复习—— 押高考数学第12题(2)2019届安徽省宣城市郎溪中学高三模拟考试数学(文)试题湖北省武汉市蔡甸区汉阳一中2020-2021学年高二下学期3月月考数学试题吉林省四平市第一高级中学2019-2020学年高二上学期第三次月考数学(文)试题(已下线)第03讲 导数与函数的极值、最值(七大题型)(练习)
2019高三·全国·专题练习
名校
7 . 设函数
为常数
(1)若函数
在
上是单调函数,求
的取值范围;
(2)当
时,证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc47b6afee7f1f858a14f10f431ad9b.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f00f2f6ab162f9333ec55db195d663b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1fe2115d883d13561e28006d3f6143b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40331bff0b126ff5a648b89d88a68450.png)
您最近一年使用:0次
2019-09-07更新
|
1077次组卷
|
7卷引用:2020届湖北省鄂东南省级示范高中教育教学改革联盟学校高三上学期期中考试数学(文)试题
2020届湖北省鄂东南省级示范高中教育教学改革联盟学校高三上学期期中考试数学(文)试题(已下线)2.2导数的应用[文] -《备战2020年高考精选考点专项突破题集》(已下线)2.3函数与方程[理]-《备战2020年高考精选考点专项突破题集》河北省“五个一”名校联盟2019-2020学年高三上学期一轮复习收官考试数学(理)试题2020届广东省珠海市高三上学期期末(一模)数学(文)试题山西省大同市第一中学2020届高三下学期2月模拟二数学(理)试题安徽省皖江名校联盟2020届高三第一次联考试题(8月) 数学(理科)
名校
8 . 设
,
是抛物线
上两点,抛物线的准线与
轴交于点
,已知弦
的中点
的横坐标为3,记直线
和
的斜率分别为
和
,则
的最小值为
![](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/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ac9f082ceb234c4ce6fac995f4cd86.png)
A.![]() | B.2 | C.![]() | D.1 |
您最近一年使用:0次
2019-09-25更新
|
1035次组卷
|
8卷引用:2019届湖北省黄冈中学高三三诊理科数学试题
名校
9 . 已知抛物线
的方程为
,抛物线的焦点到直线
的距离为
.
![](https://img.xkw.com/dksih/QBM/2017/12/11/1836042073292800/1836336756817920/STEM/175655902c4a4a03b10a60cd8e47a7f5.png?resizew=137)
(1)求抛物线
的方程;
(2)设点
在抛物线
上,过点
作直线交抛物线
于不同于
的两点
、
,若直线
、
分别交直线
于
、
两点,求
最小时直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dace86986ffbf59a49b3f840e244e630.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c98ee8ce2c56dccae6b63b5a9ca022b8.png)
![](https://img.xkw.com/dksih/QBM/2017/12/11/1836042073292800/1836336756817920/STEM/175655902c4a4a03b10a60cd8e47a7f5.png?resizew=137)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ad36a079ac42ab24fcfdc698412da30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/355dffb42861f3e297694f4be77c694c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.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/a6da2235c42867f9a79007c3fc83fec9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca3bd41676f6b69acac00a292fe134cd.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/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084cf5ffced059f5653ee2a1023518b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2017-05-02更新
|
2088次组卷
|
8卷引用:【市级联考】湖北省黄冈市八模2019届高三理科数学模拟测试题
名校
10 . 已知函数
.
(1)当
时,求证:
;
(2)讨论函数
零点的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c366eddf082a8375c2a5e260ee92c890.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914c67ddd60c47e91783929c8bdf8ba8.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2019-03-26更新
|
1079次组卷
|
5卷引用:湖北省咸宁市2018-2019学年高二下学期期末数学(文)试题