1 . 已知椭圆
的左右焦点分别为
,点
为椭圆
上异于顶点的一动点,
的角平分线分别交
轴、
轴于点
.
(1)若
,求
;
(2)求证:
为定值;
(3)当
面积取到最大值时,求点
的横坐标
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279cefeb5c389a37a71e5fd3925f5954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7775aa57ca0e62216f3039ed88dceed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94fe48bf7af022ecbbe13833fdcc2c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e099a6abe3e9566b2ad385906e323fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4ef569668e797b1e94257fd5f4384dd.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/066b9c12f71ed215ed8e98df05584f76.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64b0bac6df5da367c886f57d562c72c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
您最近一年使用:0次
2024-02-12更新
|
1973次组卷
|
4卷引用:辽宁省丹东市东港市第二中学2024届高三下学期高考热身考试数学试卷
解题方法
2 . 如图所示,现有一个直角三角形材料,
,想要截得矩形CDEF,点E在边AB上,记矩形CDEF的面积为S,
的面积为T.已知
,设
,
,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/8/71d8244e-cb49-4275-b100-7cef1c8dc54e.png?resizew=118)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ed8f7d3d7043d4b1eb98fc5c4e2fcd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cced8982712dd0ed53b56af71f4bf31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b483174c3f73ae0112a49f2f2e2b3e4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50349b20b5e209c4afbba96aa76b5e75.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/8/71d8244e-cb49-4275-b100-7cef1c8dc54e.png?resizew=118)
A.![]() | B.![]() |
C.当S取最大值时,![]() | D.当S取最大值时,![]() |
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3 . 已知函数
.
(1)若
,求
在
上的值域;
(2)若方程
的两个根分别是
,且
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02a2576bc9be76045c3b66f2f57ef77f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6bfefa5b41faae17987876d570685d.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047d4ab078dafc06c047bcbf0a6ffaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62b71c9f7cd8fb04562a116a4cdc0a96.png)
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4 . 计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b2efe2003d66e86ae735dade0b7b6d.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b2efe2003d66e86ae735dade0b7b6d.png)
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解题方法
5 . 函数
的零点所在区间为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/727c216e5a6b7325da27a1031688998d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
6 . 已知集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e17d6dfff7f7d5e15e93d4f9738eae99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 设命题
,则命题
的否定是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb52e7ac6ad696481567f53b50923de2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
解题方法
8 . 下列各式的大小关系正确的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
9 . 函数
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5230191e8e185826cc66a954449117e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17e1bab294e299d6df888f148bb8a362.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-21更新
|
516次组卷
|
3卷引用:辽宁省丹东市2023-2024学年高一上学期期末教学质量监测数学试题
名校
解题方法
10 . 已知奇函数
与偶函数
的定义域均为
,且满足
,若
恒成立,则a的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfd6c5d5713df54f8c8955eb5ddaf2c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46cf6462f88b74bee58301f8bee7e56f.png)
您最近一年使用:0次
2024-01-21更新
|
423次组卷
|
3卷引用:辽宁省丹东市2023-2024学年高一上学期期末教学质量监测数学试题