1 . 已知抛物线
的焦点为
,
为坐标原点,倾斜角为
的直线
过点
且与
交于
,
两点,若
的面积为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64447af8454c613a58b11d9274d3da2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adbd3e8cf8325999cde03adf845d3dd0.png)
A.![]() |
B.![]() |
C.以![]() ![]() |
D.![]() ![]() |
您最近一年使用:0次
解题方法
2 . 已知抛物线C:
的焦点为F,点
,N是抛物线C上一点,当
取得最小值时,
的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0261104a7c308433a0c0508ff20ea29a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/356547c08d2cd7ba5a6aaf412266d7b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a1622b71bf051bfd14c79b2c75eca58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a33181b27b10690b4913595f8c1f46e.png)
A.7 | B.5 | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
3 . 设抛物线
的焦点为F,过F且斜率为2的直线l与C交于P、Q两点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c84a09595eabd6ae21a2e8faa7465c.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c84a09595eabd6ae21a2e8faa7465c.png)
您最近一年使用:0次
2024-04-10更新
|
454次组卷
|
3卷引用:内蒙古自治区包头市2024届高三一模数学(理)试题
解题方法
4 . 已知抛物线上任意一点
满足
的最小值为1(
为焦点).
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24b106049ba15e518dcb92b081b2654f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b6507b5e6c7e87f0f400c7c2d03cc7b.png)
您最近一年使用:0次
5 . 已知抛物线
上一点
的纵坐标为4,点
到焦点
的距离为5,过点
做两条互相垂直的弦
、
.
(1)求抛物线
的方程.
(2)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ddb5abbec5cc6c4f77fb23e2515f46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/532fb9d8a0715b513e9e3f144ea264e9.png)
您最近一年使用:0次
解题方法
6 . 已知抛物线
的焦点为F,直线
与
轴的交点为A,与C的交点为P,且
.
(1)求C的方程;
(2)延长
交抛物线于Q,O为坐标原点,求
的面积
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de72a5190834f5dbe895596656c038b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cea508964582d1eeba2169678cb0f77.png)
(1)求C的方程;
(2)延长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1f0417d8269f01d8e0bc1a8756e2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30654ba32a8ac50a05dc7e34bba72dcc.png)
您最近一年使用:0次
7 . 直线
过抛物线C:
(
)的焦点F,且与C交于A,B两点,
为C的准线,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92020e8ae02f1b51d5c8d84e12bffa49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc58c62444bf42a25289c45425a00f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abd313d4e92a762fb7fb0c1cb65263d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
A.![]() |
B.![]() |
C.![]() ![]() |
D.准线![]() ![]() |
您最近一年使用:0次
2024-01-26更新
|
223次组卷
|
2卷引用:内蒙古自治区锡林郭勒盟2023-2024学年高二上学期期末教学质量检测数学试卷
8 . 已知抛物线
为抛物线的焦点,经过
的直线与抛物线交于
两点,过A作抛物线准线的垂线,垂足为
,等边
的面积为
.则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3df8cc23066de3b8eace5e881a4e989e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cace703a1f7e7655248de97ea51fde46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41322821ce31416fdac8dd6e0aa41c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
A.2 | B.4 | C.6 | D.8 |
您最近一年使用:0次
解题方法
9 . 已知抛物线
焦点为
,过
且垂直于
轴的直线交抛物线于
两点,过
作准线的垂线,垂足分别为
,四边形
的面积为18.
(1)求抛物线
的方程;
(2)已知经过定点
的直线
交抛物线于
,则
是否为定值?若是,求出定值并证明,若否,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/520f8abda6a85e7ef6f281fc2df853fa.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知经过定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4288a8d281231293bf8543b2c8fa91c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e491f65fe90e5e03c08959a35a0ac41a.png)
您最近一年使用:0次
名校
解题方法
10 . 已知抛物线
的焦点为
,
为
上在第四象限内一点,且
,直线
与
交于
两点,则下列结论正确的是( )
![](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/0dda1d7b3982b398ffa32f3dbfdfe787.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0a0328dde917c3e6d0f1ca9ddb6027b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d00a5df9d281dd4e1e45bf6a4d6fb27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
A.![]() ![]() | B.点![]() ![]() ![]() |
C.![]() ![]() | D.![]() |
您最近一年使用:0次
2023-09-26更新
|
709次组卷
|
6卷引用:内蒙古鄂尔多斯市西四旗2023-2024学年高二上学期期末数学试题
内蒙古鄂尔多斯市西四旗2023-2024学年高二上学期期末数学试题江西省红色十校2024届高三上学期9月联考数学试题(已下线)模块三 专题3 圆锥曲线的定义的应用(高一人教A)贵州省黔西南州兴义市顶效开发区顶兴学校2023-2024学年高三上学期第二次月考数学试题(已下线)模块二 专题5 圆锥曲线的定义应用 期末终极研习室高二人教A版云南省楚雄市东兴中学2024届高三上学期12月月考数学试题