已知抛物线C:
的焦点为F,直线l:y=
与抛物线C交于A,B两点.
(1)求AB弦长;
(2)求△FAB的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661bd8d4d82205bd311e7349ae91f602.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a644f682273c3cb313dbeb56fc8b67.png)
(1)求AB弦长;
(2)求△FAB的面积.
18-19高二上·北京·期中 查看更多[6]
【全国百强校】北京101中学2018-2019学年上学期高二年级期中考试数学试卷人教A版(2019) 选择性必修第一册 过关斩将 第三章 圆锥曲线的方程 3.3 抛物线 3.3.2 抛物线的简单几何性质(已下线)课时3.3.2 抛物线(02)抛物线的简单几何性质-2021-2022学年高二数学同步练习和分类专题教案(人教A版2019选择性必修第一册)(已下线)专题9-3 圆锥曲线压轴大题五个方程框架十种题型-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)河南省周口市太康县第三高级中学2022-2023学年高二上学期12月月考理数试题河南省周口市太康县第三高级中学2022-2023学年高二上学期12月月考文数试题
更新时间:2018-12-26 19:08:25
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解答题-问答题
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适中
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【推荐1】已知抛物线
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到焦点的距离等于5.
(1)求抛物线
的方程和
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(2)直线
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c61622eb7fa6fabe6bd361bd5aa6107.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)直线
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce395dfb7eab4d1d58a19bce2bfdaf7.png)
您最近一年使用:0次
【推荐2】已知抛物线
以椭圆
的右焦点为焦点
.
(1)求抛物线方程.
(2)过
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与抛物线交于
,
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(1)求抛物线方程.
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解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐1】已知抛物线
的焦点为
,点
在抛物线上.
(1)求抛物线
的方程;
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过点
交抛物线于
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作抛物线
的切线与准线交于点
,求
面积的最小值.
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e9b9f5f6b6aef5d3cc34a523564e626.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
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您最近一年使用:0次
【推荐2】已知抛物线
,过其焦点F作两条互相垂直的直线
,
,
交抛物线于A,B两点,
交抛物线于C,D两点.
(1)若直线
斜率为2,求
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(2)求四边形ACBD面积最小值.
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
(1)若直线
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(2)求四边形ACBD面积最小值.
您最近一年使用:0次