名校
1 . 已知抛物线
上有一点
,它到焦点
的距离为5,则
的面积(
为原点)为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/678577e195589e8ccd4711cb80e6745e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a201b13ce798aa2e1be50a4a62d26962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.1 | B.2 | C.![]() | D.![]() |
您最近一年使用:0次
2019-06-17更新
|
1086次组卷
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4卷引用:【全国百强校】贵州省遵义航天高级中学2018-2019学年高二下学期第三次月考数学(理)试题
【全国百强校】贵州省遵义航天高级中学2018-2019学年高二下学期第三次月考数学(理)试题陕西省黄陵中学高新部2019-2020学年高二上学期期中考试数学(理)试题(已下线)2019年12月3日《每日一题》选修1-1文数-抛物线定义的运用(已下线)2019年12月3日《每日一题》选修2-1理数-抛物线定义的运用
2014·吉林长春·三模
名校
解题方法
2 . 已知抛物线
和
的焦点分别为
,
,
,
,交于
,
两点(
为坐标原点),且
.
(1)求抛物线
的方程;
(2)过点
的直线交
,下半部分于点
,交
的左半部分于点
,点
的坐标为
,求
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac8a3bffe545af2299cf999d44767206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e393b3e36390b1354950e2cfccc4967.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f53582205ac7cacda48d0e9e720b2c.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b334e2eaa7e8fb79cef8208b56ee4f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ee4fee4e31dde06ecafe8def22af42.png)
您最近一年使用:0次
2016-12-02更新
|
2810次组卷
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8卷引用:【全国百强校】贵州省遵义航天高级中学2019届高三第二次模拟考试数学(理)试题