名校
1 . 抛物线
的焦点坐标为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ea50968c62cd8df1b01d852086d261.png)
您最近一年使用:0次
2019-05-10更新
|
478次组卷
|
5卷引用:贵州省铜仁市铜仁伟才学校2018-2019学年高二下学期期中考试数学(理)试题
名校
2 . 已知椭圆
:
的一个焦点
与抛物线
的焦点重合,且截抛物线的准线所得弦长为
.
(1)求该椭圆
的方程;
(2)若过点
的直线
与椭圆
相交于
,
两点,且点
恰为弦
的中点,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
(1)求该椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/550dee2b8e6a03b564e4d4bb1731b923.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2018-03-06更新
|
641次组卷
|
3卷引用:【全国百强校】贵州省铜仁市第一中学2018-2019学年高二上学期期末考试数学(理科)试题