名校
1 . 已知椭圆
经过
,
,
,
中的三个点,则下列命题为真命题的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e5cf872e7943c7ba11067c9329d9702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/015802bef1d028ec9ff86c54390b78a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d19c42744529668db7199e9d42bfe85c.png)
A.椭圆![]() ![]() |
B.点![]() ![]() |
C.椭圆![]() ![]() |
D.椭圆的一个顶点和它的两个焦点相连所得三角形的面积为![]() |
您最近一年使用:0次
2021-11-07更新
|
649次组卷
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4卷引用:吉林省松原市重点高中2021-2022学年高二下学期3月月考数学试题
2 . 如图,
,
为椭圆
的左右顶点,直线
交椭圆于
,
两点,直线
的斜率是直线
的斜率3倍.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/0033bcff-3246-4a62-b75e-d6626534322e.png?resizew=282)
(1)若
为椭圆上异于
,
的一点,证明:直线
和
的斜率之积为常数;
(2)证明:直线
过定点.
![](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/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b256345d7109e081b7c895591e995d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/0033bcff-3246-4a62-b75e-d6626534322e.png?resizew=282)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
(2)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
您最近一年使用:0次
2021-07-08更新
|
675次组卷
|
2卷引用:吉林省长春市第六中学2021-2022学年高二上学期第三学程考试数学(理)试题