1 . 已知曲线
(
为非零常数),则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5adf543a16a8ad1a060e6a22a3eabfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.原点是![]() |
B.直线![]() ![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() ![]() |
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23-24高二上·全国·单元测试
解题方法
2 . 在平面直角坐标系
中,已知曲线
,点
为曲线C上一点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7348c732e7309b34e329b54118c5177a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbec8b46231e412ddce55cc96634e182.png)
A.曲线C关于y轴对称 |
B.曲线C关于原点对称 |
C.点P的横坐标x0的取值范围为![]() |
D.直线y=x+1与曲线C有且仅有两个公共点 |
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名校
解题方法
3 . 已知曲线C:
,直线l:
,若曲线C上恰有3个点到直线l的距离为1,则a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6667bc356cc79f602b6ca2331f6e0cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d18efe2c0e9246743e9b37cd4f58bee.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 已知点A是椭圆C:
上一点,B是圆
:
上一点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2104c970f3c1101738cac9ca0030845.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f018979ebfefe52d26b4f6911094b94.png)
A.椭圆C的离心率为![]() | B.圆P的圆心坐标为![]() |
C.圆P上所有的点都在椭圆C的内部 | D.![]() ![]() |
您最近一年使用:0次
2023-11-04更新
|
363次组卷
|
4卷引用:河南省南阳六校2023-2024学年高二上学期期中考试数学试题
5 . 如图,双曲线
与圆
交于
,
,
,
四个不同的点,与圆
交于
,
,
,
四个不同的点,四边形
与四边形
相似,则实数
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/754590c5236e1080e806a8f9ecf087bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e76aaf14dd7e4d390ce4593769320f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd60cda62a8c31428fd72f13aa9914c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c296e45b84cf67a98939aa7334e7d478.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5bf350a619ef25d8d9b988f3db804e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/26/bf959e2f-92b4-497a-b44d-01af46da18fa.png?resizew=212)
A.![]() | B.2 | C.![]() | D.![]() |
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6 . 已知双曲线的焦点为
,且渐近线方程为
.
(1)求双曲线的标准方程;
(2)在双曲线上找一点
,满足
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c446e857bc1539e1a2e234587a03c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82352024b31fa23f4ecba5bd8cbb41de.png)
(1)求双曲线的标准方程;
(2)在双曲线上找一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3511cdc6a9b56bc1d9415d3d94ef0f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b490e09248ea3242ec67afae8d00c18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8112f9185c7d48b015d9cd0525616b31.png)
您最近一年使用:0次
2023-11-17更新
|
644次组卷
|
3卷引用:江苏省连云港市四校(新浦中学、海滨中学、锦屏高级中学、开发区高级中学)2022-2023学年高二上学期期中联考数学试题
7 . 已知
为坐标原点,
,
.若点
满足
.记点
的轨迹为曲线
,且
与曲线
在第一象限的交点为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e72358a12f923519a407a46c07f5d33.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5544274135a5332a1403741c8c0bd2dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/788a45292b81b3632fda1f9df89308fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad245ab26aecb331b737acaad7dbf8c.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0059cb1f331ba2fdfa8b089d4557401.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e72358a12f923519a407a46c07f5d33.png)
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名校
8 . 作为平面直角坐标系的发明者,法国数学家笛卡尔也研究了不少优美的曲线,如笛卡尔叶形线,其在平面直角坐标系xOy下的一般方程为x3 + y3-3axy = 0.某同学对a = 1情形下的笛卡尔叶形线的性质进行了探究,得到了下列结论,其中错误的 是( )
A.曲线不经过第三象限 | B.曲线关于直线y = x对称 |
C.曲线与直线x + y =-1有公共点 | D.曲线与直线x + y =-1没有公共点 |
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名校
9 . 方程
有且仅有两个不同实根,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6387cc387bd55b9691e3c222476d8d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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10 . 已知双曲线C:
定义:把双曲线
的虚轴保持不变,渐近线的斜率变为原来渐近线斜率的两倍得到的曲线称为曲线
的“
线”,把双曲线
的左支向右平移
个单位,把它的右支向左平移
个单位得到的曲线称为曲线
的“
-线”,若双曲线
是等轴双曲线,且焦距等于
,
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/7/4c91a0eb-1442-46fa-bc3a-7a4cce048598.png?resizew=190)
(1)求双曲线
的“
-线”和“
-线”;
(2)若由“
-线”和“
-线”围成的封闭曲线上的点集都在圆
内或圆
上,求半径最小时圆
的方程,并在坐标系中用尺规作图画出该封闭曲线和圆
大致图像.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4446f654cf8401b640cc79c2b97af5db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec978eb43bc4f9e7df83b0d0195dcda.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/7/4c91a0eb-1442-46fa-bc3a-7a4cce048598.png?resizew=190)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
(2)若由“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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