名校
1 . 已知
为坐标原点,曲线
:
,
,
为曲线
上动点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344d74115e7a6f0ccfa585a2542f91f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7775aa57ca0e62216f3039ed88dceed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
A.曲线![]() | B.曲线![]() |
C.![]() | D.![]() ![]() |
您最近一年使用:0次
解题方法
2 . 定义曲线
为椭圆
的“倒椭圆”.已知椭圆
:
,其倒椭圆
:
,
为坐标原点,
为
上任意点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bd8e3b0bcd15e02d8762cd00e9dd0cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1985b33902f0c1997ebf1fc1bdf53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
A.![]() |
B.曲线![]() |
C.过点![]() ![]() ![]() ![]() ![]() ![]() |
D.过点![]() ![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
3 . 已知曲线
:
(x,y不同时为0),则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc6fb4a75c522f24259dccdfb0b1e6da.png)
A.![]() ![]() |
B.若点![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
2023-06-16更新
|
563次组卷
|
2卷引用:浙江省嘉兴市2022-2023学年高二上学期期末数学试题
解题方法
4 . 若曲线
是由方程
和
共同构成,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/526836528d29b030e75a44237ab935e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/888fc36d35fec9882c02527ac268cf30.png)
A.曲线![]() ![]() |
B.曲线![]() ![]() |
C.若点![]() ![]() ![]() ![]() |
D.若圆![]() ![]() ![]() |
您最近一年使用:0次
2023-02-23更新
|
581次组卷
|
5卷引用:浙江省绍兴市诸暨市2022-2023学年高二上学期期末数学试题
浙江省绍兴市诸暨市2022-2023学年高二上学期期末数学试题2023年普通高等学校招生统一考试数学模拟预测试题(一)(已下线)模块三 专题8 圆的方程 A基础卷(已下线)模块三 专题11 圆的方程 A基础卷(已下线)FHsx1225yl197
5 . 1675年,天文学家卡西尼在研究土星及其卫星的运行规律时发现:在同一平面内,到两个定点的距离之积为常数的点的轨迹是卡西尼卵形线.在平面直角坐标系
中,设定点
,
,其中
,动点
满足
(
且
为常数),化简可得曲线
:
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5076829e649b3f3866d4a7e07a5713e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697c20fca284394bf5d5b9e5f6d952e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cec12441802f71e803efaf2c62ee588.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ca887802a8e012c7c42b09a58de314f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3a34d6f60032718820c3da2b07786b.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/8c3e939ab754fe3f98d7a872b903208d.png)
A.原点![]() ![]() |
B.曲线![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
6 . 两千多年前,古希腊大数学家阿波罗尼奥斯发现,用一个不垂直于圆锥的轴的平面截圆锥,其截口曲线是圆锥曲线(如图).已知圆锥轴截面的顶角为2θ,一个不过圆锥顶点的平面与圆锥的轴的夹角为α.当
时,截口曲线为椭圆;当
时,截口曲线为抛物线;当
时,截口曲线为双曲线.在长方体
中,
,
,点P在平面ABCD内,下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/1/20/2898521846890496/2899266842451968/STEM/9dc74f0b-ac6e-40f4-909b-9d2739194701.png?resizew=160)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d5954999496c70bdf3a869ae71e553.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adc97da3e03769cd0c764cfaae2a6483.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01503b51d6042feaa07f59ab8ba337d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d262480ffb55b7617f44b63f130c154a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
![](https://img.xkw.com/dksih/QBM/2022/1/20/2898521846890496/2899266842451968/STEM/9dc74f0b-ac6e-40f4-909b-9d2739194701.png?resizew=160)
A.若点P到直线![]() ![]() |
B.若点P到直线![]() ![]() |
C.若![]() |
D.若![]() |
您最近一年使用:0次
2022-01-21更新
|
992次组卷
|
5卷引用:浙江省台州市2021-2022学年高二上学期期末数学试题
浙江省台州市2021-2022学年高二上学期期末数学试题浙江省绍兴市上虞区2023-2024学年高二上学期期末质量调测数学试题山东省菏泽市2022-2023学年高二上学期期末数学试题(已下线)【一题多变】引言引领 截口曲线(已下线)第三章 空间轨迹问题 专题二 立体几何中位置关系类动点轨迹问题 微点2 立体几何中位置关系类动点轨迹问题综合训练【培优版】
名校
7 . 在数学中有这样形状的曲线
:
,以下说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e04720ecc25ad8e71f2628c2ee0c674.png)
A.曲线![]() ![]() ![]() |
B.![]() ![]() |
C.曲线![]() |
D.![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次