1 . 已知函数
,
.
(1)若
,求使
的x的取值范围;
(2)当
时,设
,求
在区间
上的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef9e5c2f3e134ee0bb885fdc71c99c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab839d8569171afab5ed55c22013aa72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e357538192b0086515ca082025dad9b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/189b2da6c420bf8f8900002d14f65f72.png)
您最近一年使用:0次
2024-05-12更新
|
242次组卷
|
2卷引用:湖南省益阳市2023-2024学年高一上学期期末考试数学试题
名校
解题方法
2 . 已知二次函数
.
(1)若
的解集为
,解关于
的不等式
;
(2)已知
,若
对于一切实数
恒成立,并且存在
,使得
成立,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331d5e308cd5469e0f28a8d75f79903f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da3da6b999bd84dfff12cde8deacae7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b03f81246769936154d50d832366d.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe7b21c45031b3b951f9f09cba0a024e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/799b324b514d6044672c133d8fef2dc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/017e6e26ce02c89166e87a2a7c9399e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2adf751c67f525b5738c44b4cf02d4a0.png)
您最近一年使用:0次
20-21高三上·浙江·阶段练习
名校
解题方法
3 . 已知函数
满足
,且
在
上有最大值
.
(1)求
的解析式;
(2)当
时,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ccda7f2995f37dd76ea8e24cb893e22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87cd4403487962c38c8707ba3ab3fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/250b5107cbd77faecb232faa478adfa4.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53224898de85a85058ad336490bbbaa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19c007eb3e68cc7dafbaeb38fde77c1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解题方法
4 . 已知椭圆
的离心率是
,且经过点
.
(1)求椭圆C的标准方程;
(2)过右焦点F的直线l与椭圆C相交于A,B两点,点B关于x轴的对称点为H,试问
的面积是否存在最大值?若存在,求出这个最大值;若不存在,请说明理由.
![](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/8c7da9b335f99c94a64b314fbcd20e3c.png)
(1)求椭圆C的标准方程;
(2)过右焦点F的直线l与椭圆C相交于A,B两点,点B关于x轴的对称点为H,试问
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/507ed891293f5b9f54304df66ca05949.png)
您最近一年使用:0次
名校
解题方法
5 . 已知椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f9694c1591b2e613b0fb4485b53ea08.png)
,
为右焦点,圆
,
为椭圆
上一点,且
位于第一象限,过点
作
与圆
相切于点
,使得点
,
在
的两侧.
(Ⅰ)求椭圆
的焦距及离心率;
(Ⅱ)求四边形
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f9694c1591b2e613b0fb4485b53ea08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560adea7b0d4fbe4131fc41f3fcbd871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d583183429b6b31aa9742eefc67d3181.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
(Ⅰ)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d08a4c31182666a36e931fe40e61a762.png)
您最近一年使用:0次
2018-05-04更新
|
1636次组卷
|
5卷引用:【全国百强校】湖南省怀化三中2018-2019学年高二上学期期中考试理科数学试卷