名校
1 . 已知抛物线
的焦点为
,点
在抛物线
上,点
在
轴上的投影为点
,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c1ba86ffc6e5542b62319848c14acaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0152399693533f1c3b70693bb16907ba.png)
A.1 | B.![]() | C.![]() | D.![]() |
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2024-06-14更新
|
235次组卷
|
3卷引用:陕西省西安市第一中学2024届高三下学期高考预测数学(文科)试题
名校
2 . 设抛物线
:
的焦点为
,点
在
上,
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e1d93f21f39ebf95b5929b456814246.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd7c81b0466e910785f46a72870de28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e53e53760f14c161a13e1017558dfb28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c84a09595eabd6ae21a2e8faa7465c.png)
A.![]() | B.6 | C.![]() | D.![]() |
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2024-04-16更新
|
190次组卷
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3卷引用:陕西省西安市第一中学2024届高三第四次质量监测文科数学试题
名校
3 . 古希腊的几何学家用一个不垂直于圆锥的轴的平面去截一个圆锥,将所截得的不同的截口曲线统称为圆锥曲线如图所示的圆锥中,AB为底面圆的直径,M为PB中点,某同学用平行于母线PA且过点M的平面去截圆锥,所得截口曲线为抛物线.若该圆锥的高
,底面半径
,则该抛物线焦点到准线的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae890f9e8b32aa53a54158f24f4a87bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9774f83067ed956a551bc41adcce0469.png)
A.2 | B.3 | C.![]() | D.![]() |
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2024-03-13更新
|
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4卷引用:陕西省安康市高新中学2024届高三下学期5月适应性试题(二)文科数学试题
4 . 已知抛物线
的焦点为
,点
在
上,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a66c5f00b5b38a2d052354b5611970e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7bf417767442935d2b9e49d18fbea79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cfed9c83873d6ef3cae01a376832cdc.png)
A.8 | B.10 | C.11 | D.15 |
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名校
解题方法
5 . 已知
为坐标原点,点
在抛物线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39dbdab996556fcf8b6e1acc0aa2e3f8.png)
上,过点
的直线交抛物线
于
两点,其中正确结论的个数有( )
①抛物线
的准线方程为
②直线
与抛物线
相切
③
为定值5 ④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1f96ddb6b56f9ce7268b62cbc1a748d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bd056ad7b4674fe46f04643fe175538.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39dbdab996556fcf8b6e1acc0aa2e3f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b75ed10db4b9747a4b6d865b774f6b6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81b54b9cf95418bc3dce6e4c698b9907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
①抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5215b714cde3ed7790b3ed4f6711c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1f96ddb6b56f9ce7268b62cbc1a748d.png)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
6 . 已知抛物线
的焦点与双曲线
的一个焦点重合,则该双曲线的渐近线方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e6c984ee8c0cd3b62b344440965717f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cda4d88c1b9bce32712cf4d854a0939.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-31更新
|
286次组卷
|
2卷引用:陕西省汉中市汉台区2024届高三上学期第四次校际联考数学(文)试题
7 . 如图,设抛物线
的焦点为
,不经过焦点的直线上有三个不同的点
,其中点
在该抛物线上,点
在
轴上,若
,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/7/230227f5-e6e5-4606-abef-f9f6abfdd647.png?resizew=130)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af5924c55225284029a491738ce558f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce96b76b881d40b9ea9467514c93fba.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/7/230227f5-e6e5-4606-abef-f9f6abfdd647.png?resizew=130)
A.![]() | B.![]() | C.![]() | D.3 |
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2024-01-20更新
|
1283次组卷
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8卷引用:陕西省榆林市2024届高三一模数学(理)试题
名校
解题方法
8 . 已知抛物线
的焦点为F,准线为l,过点F且倾斜角为
的直线交抛物线于点M(M在第一象限),
,垂足为N,直线NF交x轴于点D,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac09dc1ca2cdd7aef28c218763d3e4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b33a3f384acb53b5a21521a77ac0b1f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1d5b64a95e549c9404bc18e9d001927.png)
A.2 | B.![]() | C.4 | D.![]() |
您最近一年使用:0次
2024-01-12更新
|
271次组卷
|
3卷引用:陕西省安康中学2023届高三下学期5月学业质量检测(三)文科数学试题
9 . 已知
为抛物线
上的一点,
为
的焦点,
为坐标原点.
(1)求
的面积;
(2)若
为
上的两个动点,直线
与
的斜率之积恒等于
,作
,
为垂足,证明:存在定点
,使得
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/706e0350fd1c36a4e3c66868a8218a7e.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06d953266f08eb217f1b174c1729e0ed.png)
(2)若
![](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/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f479d987bc7abd828c64f9dc745836ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e40d4cc8903167433159d13fb91e59e2.png)
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10 . 若抛物线
上一点
到焦点的距离是该点到
轴距离的2倍,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14bd426e7e1e65d91394da0b28d49f65.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3e8ffd0f8eae86ed67c37611d26e9a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b4f86e48e2b0d63c1865c60ed1e4d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14bd426e7e1e65d91394da0b28d49f65.png)
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2024-01-03更新
|
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4卷引用:陕西省渭南市蒲城县尧山中学2024届高三上学期第四次质量检测数学(理)试题
陕西省渭南市蒲城县尧山中学2024届高三上学期第四次质量检测数学(理)试题江西省上饶市婺源天佑中学2023-2024学年高二上学期1月考试数学试题四川省南充市阆中市川绵外国语学校2023-2024学年高二上学期期末复习数学试题(三)(已下线)第2章 圆锥曲线(知识归纳+题型突破)-2023-2024学年高二数学单元速记·巧练(沪教版2020选择性必修第一册)