1 . 已知函数
,其中
.
(1)求证:函数
在区间
上是单调函数;
(2)求函数
的极小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d8d1be093f0ca5793aa30a2f39e848f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)求证:函数
![](https://img.xkw.com/dksih/QBM/2017/4/20/1670021405106176/1671087904022528/STEM/b1d20bab502f47ba94378faa68d4f74e.png?resizew=36)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c6ffa6fe2387ee19234c2ad0fcb92ea.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3dae125838ea9fb59645d71600502a0.png)
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2 . 已知函数
.
(1)若曲线
在点
处与直线
相切,求
的值;
(2)若函数
有两个零点
,试判断
的符号,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcb13207f3d5ea73c3efa9452af764de.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62a026fe55f6e9fe8ebefa239d56d9b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90baac532eb4af70aca4e149fe59bfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c577ac4a86eab9d670c3de7d4f73d0e4.png)
您最近一年使用:0次
2017-02-08更新
|
553次组卷
|
3卷引用:2017届河南豫北名校联盟高三理上精英对抗赛数学试卷1
3 . 已知函数
.
(I)求函数
的单调区间;
(II)若函数
的图象在点
处的切线的倾斜角为
,对于任意的
,函数
在区间
上总不是单调函数,求
的取值范围;
(III)求证:
.
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572683042848768/1572683049213952/STEM/1d842d52d058405f84eb242a9bfef5f3.png)
(I)求函数
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572683042848768/1572683049213952/STEM/8d629f5208d5403aa34e3e6e939f47ac.png)
(II)若函数
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572683042848768/1572683049213952/STEM/8b6caaa76f0444b59ad33385e5c7698b.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572683042848768/1572683049213952/STEM/0e910f2b83ac4b3caa0e66ec31643716.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572683042848768/1572683049213952/STEM/1c72891687e240c4a963457295b1797a.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572683042848768/1572683049213952/STEM/207199a1f219418aaa1e731fd524242d.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572683042848768/1572683049213952/STEM/bf5fccbc660e40e995965cf3cb6242e6.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572683042848768/1572683049213952/STEM/b5d6ad3177b147528e7c97eeca8f7384.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572683042848768/1572683049213952/STEM/c9b737c72189421aa9c620007ee72dad.png)
(III)求证:
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572683042848768/1572683049213952/STEM/f9634c24a32e4a919321663a93f43caf.png)
您最近一年使用:0次
名校
4 . 设椭圆
的左、右顶点分别为是
,点
在椭圆上且异于
两点,
为坐标原点.
(1)若直线
与
的斜率之积为
,求椭圆的离心率;
(2)若
,证明直线
的斜率
满足
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eed6b9540857e386651e191a0a5b5a98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3389f53711264b0acba3ba6019f8b908.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fff3bf5eee9c5926053acb791f7567d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e27f0201421a54558699dd7bb01b68.png)
您最近一年使用:0次
2017-02-08更新
|
538次组卷
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8卷引用:2016-2017学年河南省濮阳市高二上学期期末考试数学(理)试卷
2016-2017学年河南省濮阳市高二上学期期末考试数学(理)试卷2016-2017学年河南省濮阳市高二上学期期末考试(A卷))理数试卷2017届宁夏中卫一中高三上周练一数学(文)试卷2017届广西桂林市桂林中学高三2月月考数学(文)试卷黑龙江省大庆市铁人中学2020-2021学年高二上学期第一次月考数学试题(已下线)重难点08 直线与圆锥曲线(定点定值最值问题)-2021年高考数学【热点·重点·难点】专练(上海专用)(已下线)专题19 圆锥曲线 (练习)-2北京名校2023届高三二轮复习 专题五 解析几何 第3讲 直线与圆锥曲线的位置关系
5 . 已知函数
.
(1)讨论
的增减性;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5e12dd35e5ad8fbda75893d45c24d5a.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76fe92cec97238826a074f116a67cf48.png)
您最近一年使用:0次
9-10高二下·河南焦作·期末
6 . 已知:如图,设P为椭圆上的任意一点,过点P作椭圆的切线,交准线m于点Z,此时FZ⊥FP,过点P作PZ的垂线交椭圆的长轴于点G,椭圆的离心率为e,求证:FG=e·FP
![](https://img.xkw.com/dksih/QBM/2010/8/5/1569807300009984/1569807305097216/STEM/1123f30d3514439e9161f78ed0a8f9fc.png)
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7 . 椭圆C:
+
=1(a>b>0)的离心率为
,其左焦点到点P(2,1)的距离为
.
(1)求椭圆C的标准方程;
(2)若直线l:y=kx+m与椭圆C相交于A,B两点(A,B不是左右顶点),且以AB为直径的圆过椭圆C的右顶点,求证:直线l过定点,并求出该定点的坐标.
![](https://img.xkw.com/dksih/QBM/2016/2/24/1572495764848640/1572495772786688/STEM/10c2916123e74a9ca1c2d3643363d991.png)
![](https://img.xkw.com/dksih/QBM/2016/2/24/1572495764848640/1572495772786688/STEM/4711e87f998a4c589b496825b989fd8f.png)
![](https://img.xkw.com/dksih/QBM/2016/2/24/1572495764848640/1572495772786688/STEM/2ab32a0126a54fd7a4e9dc6803cf7282.png)
![](https://img.xkw.com/dksih/QBM/2016/2/24/1572495764848640/1572495772786688/STEM/b91e0b021c99404b977bb41cc8cf8a6e.png)
(1)求椭圆C的标准方程;
(2)若直线l:y=kx+m与椭圆C相交于A,B两点(A,B不是左右顶点),且以AB为直径的圆过椭圆C的右顶点,求证:直线l过定点,并求出该定点的坐标.
您最近一年使用:0次
2016-12-04更新
|
369次组卷
|
2卷引用:2015-2016学年河南省北大附中分校高二普通班上学期期末理科数学卷