名校
解题方法
1 . 已知
为坐标原点,点
在抛物线
上,过点
的直线交
于
,
两点,则下列命题正确的是________ .
(1)
的准线为
;(2)直线
与
相切;(3)
;(4)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9c59f0e35b7ae5206e45878934482b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82ea1be9b9b6bb12afa7e1ce703d1603.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3544997cc034ed882c0d0a3bdbf5f957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefa44964db83759aff6fc8dd7ef8f28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1cd4b5f5dfdca309903e5e3d1121d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1f96ddb6b56f9ce7268b62cbc1a748d.png)
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2 . 已知椭圆的方程为
,则它的焦点坐标为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/929070fe8b66d57fcfb19ec2b70218d3.png)
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3 . 已知直线l:
与双曲线C:
相切于点Q.
(1)试在集合
中选择一个数作为k的值,使得相应的t的值存在,并求出相应的t的值;
(2)设直线m过点
且其法向量
,证明:当
时,在双曲线C的右支上不存在点N,使之到直线
的距离为
;
(3)已知过点Q且与直线l垂直的直线
分别交x、y轴于A、B两点,又P是线段
中点,求点P的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae96f5020aef5aef03ec7f406460f608.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ea74737939c0f94c91229a7098f36ec.png)
(1)试在集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1196906fbdb1848b38b0419637041b36.png)
(2)设直线m过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20b01f40efd0566aeec9927ddf01b0c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c96926a5e3210cc6bf604b99d2d26bc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eacad534a542afab7c013dfc8a7c197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35361e76a7c85d1886728c8d0200b234.png)
(3)已知过点Q且与直线l垂直的直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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4 . 已知双曲线
的一条渐近线方程为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfd0d9fbd5a6d7fc93cfbe66c7dccf11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b9f0b9e53a83e68f5fec944f343119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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5 . 我国著名数学家华罗庚说“数缺形时少直观,形少数时难入微:数形结合百般好,隔离分家万事休”,包含的意思是:几何图形中都蕴藏着一定的数量关系,数量关系又常常可以通过几何图形做出直观的反映和描述,通过“数”与“形”的相互转化,常常可以巧妙地解决问题,所以“数形结合”是研究数学问题的重要思想方法之一.比如:
这个代数问题可以转化为点
与点
之间的距离的几何问题.结合上述观点可得,方程
的解为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/903bccc24f8d05f44da3df48be7e9163.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f31c3f302f5b10a40723b5b372cfc8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bcd735ddc790c918d9a93336093fb02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267d323a5bb381fe3fb9916f98e8d858.png)
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解题方法
6 . 抛物线
的焦点为
,准线为
,点
是准线
上的动点,若点
在抛物线
上,且
,则
(
为坐标原点)的最小值为__________ .
![](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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77d1ba10adcb84eafe3a6677c76064e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/497305c01377ab7a342e29247b80ac17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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7 . 设
是双曲线
上一点,
分别是双曲线左右两个焦点,若
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311f4e2e5bdfbb147f32a6421c80a8f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d478d9b6b08fb5b27f6a9442a2d443e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96fa27f8db6167d4802a510371077bb5.png)
A.1 | B.17 | C.1或17 | D.5或13 |
您最近一年使用:0次
7日内更新
|
128次组卷
|
2卷引用:上海市上海中学东校2023-2024学年高二下学期5月月考数学试卷
名校
8 . 极限![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ddeb04bdc369227ce73853fb00a0f7.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ddeb04bdc369227ce73853fb00a0f7.png)
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7日内更新
|
83次组卷
|
2卷引用:上海市上海中学东校2023-2024学年高二下学期5月月考数学试卷
名校
9 . 拋物线
的焦点到其准线的距离是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/097cdbab8d22d95bea53b5475bc0d215.png)
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解题方法
10 . 曲线
的离心率为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45b51d0aaef52e4aabb9a54ea1c1f203.png)
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