1 . 已知抛物线E:
的焦点为F,点F与点C关于原点对称,过点C的直线l与抛物线E交于A,B两点(点A和点C在点B的两侧),则下列命题正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
A.若BF为![]() ![]() |
B.若BF为![]() ![]() |
C.存在直线l,使得![]() |
D.对于任意直线l,都有![]() |
您最近一年使用:0次
2 . 拋物线
的焦点
到准线的距离为1,经过点
的直线
与
交于
两点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3216eaf304ac663dde585aba0af04a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84bfec4efcc9f0e656d6864daaaef55d.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)
A.当![]() ![]() ![]() |
B.当点![]() ![]() ![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() ![]() |
您最近一年使用:0次
2024-03-19更新
|
845次组卷
|
4卷引用:贵州省黔东南州2024届高三下学期模拟统测(二模)数学试题
2024高三·江苏·专题练习
3 . 已知
为坐标原点,点
为抛物线
:
的焦点,点
,直线
:
交抛物线
于
,
两点(不与
点重合),则以下说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cfb23a9e07213cb76990dbedfc7feca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/303094682b317daea83be885d1c7ff4b.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/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() |
B.存在实数![]() ![]() |
C.若![]() ![]() |
D.若直线![]() ![]() ![]() |
您最近一年使用:0次
2024-03-16更新
|
1063次组卷
|
5卷引用:湖北省黄冈市浠水县第一中学2024届高三下学期第二次模拟考试数学试题
湖北省黄冈市浠水县第一中学2024届高三下学期第二次模拟考试数学试题(已下线)黄金卷05(2024新题型)(已下线)黄金卷04(2024新题型)河北省石家庄一中2023-2024学年高二下学期第一次月考数学试题(已下线)数学(江苏专用02)
4 . 抛物线
的焦点为
,经过点F且倾斜角为
的直线l与抛物线C交于A,B两点,分别过点A、点B作抛物线C的切线,两切线相交于点E,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82ea1be9b9b6bb12afa7e1ce703d1603.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5421a28dc3675ae20190d6090793246e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.当![]() ![]() |
B.![]() |
C.点E在一条定直线上 |
D.设直线![]() ![]() ![]() |
您最近一年使用:0次
2024-03-14更新
|
565次组卷
|
3卷引用:安徽省安庆市2024届高三模拟考试(二模)数学试题
名校
解题方法
5 . 如图,过点
的直线
交抛物线
于A,B两点,连接
、
,并延长,分别交直线
于M,N两点,则下列结论中一定成立的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a610d520382a07eedcbc960c65a93ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/853e3c15d116fb61f236ab239c50b114.png)
A.![]() | B.以![]() ![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-03-12更新
|
1021次组卷
|
3卷引用:山东省菏泽市2024届高三下学期一模考试数学试题
6 . 已知抛物线
的焦点为
,点
在其准线上运动,过
作
的两条切线与
相切于
两点,则以下说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ae1567d8f98fabc1a3948f8602cc5e7.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
7 . 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
8 . 已知抛物线C:
的焦点为F,过点
的直线l与抛物线C交于A,B两点,设直线l的斜率为k,则下列选项正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2a5e336b6bcba6354fd366c892dd06.png)
A.![]() |
B.若以线段AB为直径的圆过点F,则![]() |
C.若以线段AB为直径的圆与y轴相切,则![]() |
D.若以线段AB为直径的圆与x轴相切,则该圆必与抛物线C的准线相切 |
您最近一年使用:0次
解题方法
9 . 抛物线
的焦点为
,
、
是抛物线上的两个动点,
是线段
的中点,过
作
准线的垂线,垂足为
,则( )
![](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/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
A.若![]() ![]() ![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
10 . 已知抛物线
的焦点
与椭圆
的右焦点重合,
是抛物线
上不同的两点,
为坐标原点,则( )
![](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/82766cfd2b7c59c7fac5b827ae5863b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.抛物线![]() ![]() |
B.若直线![]() ![]() ![]() ![]() |
C.若点![]() ![]() ![]() |
D.若![]() ![]() |
您最近一年使用:0次