已知抛物线
过点
(
).
(1)求C的方程;
(2)若斜率为
的直线过C的焦点,且与C交于A,B两点,求线段
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c972a29cc3347c42003c517e4edc08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)求C的方程;
(2)若斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
22-23高二下·广东汕尾·期末 查看更多[7]
广东省汕尾市2022-2023学年高二下学期期末数学试题(已下线)第24讲 抛物线的简单几何性质6种常见考法归类(1)(已下线)专题3.10 圆锥曲线的方程全章八类必考压轴题-2023-2024学年高二数学举一反三系列(人教A版2019选择性必修第一册)(已下线)第06讲 3.3.2抛物线的简单几何性质(1)(已下线)模块四 专题6 大题分类练(圆锥曲线的方程)基础夯实练(人教A)(已下线)专题05 抛物线8种常见考法归类(2)(已下线)第08讲:圆锥曲线(大题) (必刷7大考题+7大题型)-2023-2024学年高二数学上学期《考点·题型·难点》期末高效复习(人教A版2019)
更新时间:2023-07-08 13:54:32
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【推荐1】已知抛物线C:
与直线
相切.
(1)求C的方程;
(2)过C的焦点F的直线l与C交于A,B两点,AB的中垂线与C的准线交于点P,若
,求l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31c4f39399ec245a67db2933ed639f2.png)
(1)求C的方程;
(2)过C的焦点F的直线l与C交于A,B两点,AB的中垂线与C的准线交于点P,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f7dd449cbff87d9e7cf8b7183fd1edd.png)
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【推荐2】已知抛物线
,记其焦点为
.设直线
:
,在该直线左侧的抛物线上的一点P到直线
的距离为
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/20/e9e29ba9-56c3-4623-9ae5-63ea680c7c82.png?resizew=171)
(1)求
的方程;
(2)如图,过焦点
作两条相互垂直的直线
、
,且
的斜率恒大于0.若
交
于
点,
交抛物线于
、
两点,证明:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df40ba57bb5819b4aaa38d514500052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af46f4c7cff865fff825b5f027f184a3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/20/e9e29ba9-56c3-4623-9ae5-63ea680c7c82.png?resizew=171)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)如图,过焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4180dae966f648d368a10edf3b7e3c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.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/5adaefbda1b2699d57edd3c764500079.png)
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【推荐1】已知抛物线
,点
在抛物线
上.
(1)求抛物线
的方程;
(2)不过原点的直线
与抛物线交于不同两点
,
,若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec8c1e65b0727f0409152515f3e4f9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c2ec4641abd01716148310658792eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)不过原点的直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d00a5df9d281dd4e1e45bf6a4d6fb27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7df99fe6438442a9453fc0c57fb703.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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【推荐2】已知点
在抛物线
上,
为焦点,且
.
(1)求抛物线
的方程;
(2)过点
的直线
交抛物线
于
两点,
为坐标原点,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dda1d7b3982b398ffa32f3dbfdfe787.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ab7408ffcefcb8e5e1ad4a9c58f1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1584d07b1e2ddc64349f0f5940f3a3e.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60f2a72c6d7780757ab065fb29f47526.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ace585d3cc2e113a0927cdf9e56756a.png)
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【推荐1】倾斜角为
的直线
过抛物线
的焦点,且与
交于A,
两点
(1)求抛物线的准线方程;
(2)求
的面积(
为坐标原点).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)求抛物线的准线方程;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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【推荐2】已知抛物线
的焦点为F.
(1)求F的坐标和抛物线C的准线方程;
(2)过点F的直线l与抛物线C交于两个不同点A,B,再从条件①、条件②这两个条件中选择一个作为已知,求
的长.
条件①:直线l的斜率为1;
条件②:线段
的中点为
.
注:如果选择条件①和条件②分别作答,按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
(1)求F的坐标和抛物线C的准线方程;
(2)过点F的直线l与抛物线C交于两个不同点A,B,再从条件①、条件②这两个条件中选择一个作为已知,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaff41080fdea43eea7efedf9ebc1498.png)
条件①:直线l的斜率为1;
条件②:线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407417c2fd059a0cbb54f27edb8876bd.png)
注:如果选择条件①和条件②分别作答,按第一个解答计分.
您最近一年使用:0次