名校
1 . 已知正方体
是边长为1的正方体,点
为正方体棱上的一动点,则使得
的点
有__________ 个.(用数字作答)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fa501be0fafcaaa3fa31731e929e301.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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名校
解题方法
2 . 已知圆系
,圆
过
轴上的定点
,线段
是圆
在
轴上截得的弦,设
.对于下列命题:
①不论
取何实数,圆心
始终落在曲线
上;
②不论
取何实数,弦
的长为定值1;
③式子
的取值范围是
.
④不论
取何实数,圆系
的所有圆都与直线
相切;
其中真命题的序号是__________ .(把所有真命题的序号都填上)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b214316f02bbdd3bb5bda1ec628f0969.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5c0d3564653f3c95d929bfa70289c18.png)
①不论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e8953ded144195804384dcb494d5e2a.png)
②不论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
③式子
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9c26ee0f01990cd336dc2452014ea0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d89d3cb58df77b34628cc290b2c91fbb.png)
④不论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2f3fa679bb55ded25a9b72a8e788cb1.png)
其中真命题的序号是
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3 . 如图,若正方体的棱长为
,点
是正方体
的底面
上的一个动点(含边界),
是棱
的中点,①若保持
,则点
在底面
内运动路径的长度为_____________ ;②三棱锥
体积的最大值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a34e4d3146f60306eb2da3dcaebda675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b42aa5c841d17cbd3ca982f4ba27a0.png)
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名校
解题方法
4 . 已知正四面体
的棱长为2,动点
满足
,且
,则点
的轨迹长为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/699f18e45e11545da4cb546bcc1b5587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a95d833378fedd8a5eb2135c54f3642e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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2024-03-14更新
|
909次组卷
|
2卷引用:上海市浦东新区上海师范大学附属中学2023-2024学年高二下学期期中考试数学试卷
5 . 已知曲线
,
,给出下列四个命题:
①曲线
关于
轴、
轴和原点对称;
②当
时,曲线
,
共有四个交点;
③当
时,曲线
围成的区域内(含边界)两点之间的距离的最大值是3;
④当
时,曲线
围成的区域面积大于曲线
围成的区域面积.
其中所有真命题的序号是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/282c73aa06e789c79766977e9b278b6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407bdf4be5d3319d0cd89c1863251928.png)
①曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c3ff0b0fea1cb642d3f6be77a1ff32f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c3ff0b0fea1cb642d3f6be77a1ff32f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6eaa137a2290a9a9ec7ad635d17dbb6.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6eaa137a2290a9a9ec7ad635d17dbb6.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe9e329f2730b2be926b121f1ae04c0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c3ff0b0fea1cb642d3f6be77a1ff32f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6eaa137a2290a9a9ec7ad635d17dbb6.png)
其中所有真命题的序号是
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6 . 已知正方体
的棱长为2,E为棱
的中点,F,Q分别是线段
上的两个动点,
为正方体表面
上一点,若
到棱
与到棱
的距离相等,则
的最小值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5081ee229e252b7812f0b7771d7d3baf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6288233eaba9ae91e2c3683eb1c6c3d.png)
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解题方法
7 . 若曲线
上的两点
,
满足
,则称这两点为曲线
上的一对“双胞点”.下列曲线中:①
;②
;③
;④
.存在“双胞点”的曲线序号是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bbbf52d1f9d61b41bdd4acfc9fac268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b225d772013d021cf1bfe7b9421fa5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6b7e35faab6d74fa0c36599c39d1698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697a1b717c32fd60cab37e84cca3dd10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bbbf52d1f9d61b41bdd4acfc9fac268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86af7d2b6d101e3e6c1acd00f2f4f388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7018bb15d42d6d41b30b4f65de539489.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e746af8b86af09af12c3b01687b5f19d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/238721377650d1379a369c4744714d6a.png)
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解题方法
8 . 已知曲线
.关于曲线W有四个结论:
①曲线W既是轴对称图形又是中心对称图形;
②曲线W的渐近线方程为
;
③当
时曲线W为双曲线,此时实轴长为2;
④当
时曲线W为双曲线,此时离心率为
.
则所有正确结论的序号为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb65152906dd85d99319f2aa0b8e9fe.png)
①曲线W既是轴对称图形又是中心对称图形;
②曲线W的渐近线方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eba80160fe41b335cd9e54fd449f8387.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59c328c9c4ec69c4275e27576fb61655.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59c328c9c4ec69c4275e27576fb61655.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7881094ce2f907c3aaf664318ecd3e2d.png)
则所有正确结论的序号为
您最近一年使用:0次
2024-01-26更新
|
152次组卷
|
2卷引用:北京市通州区2023-2024学年高二上学期期末质量检测数学试卷
9 . 数学中有许多形状优美的曲线,曲线
就是其中之一.给出下列四个结论:
①曲线
关于坐标原点对称;
②曲线
上任意一点到原点的距离的最小值为2;
③曲线
恰好经过8个整点(即横、纵坐标均为整数的点);
④曲线
所围成的区域的面积大于8.
其中所有正确结论的序号是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fed51e81ed5c74af07599c77a62e99de.png)
①曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
②曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
③曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
④曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
其中所有正确结论的序号是
您最近一年使用:0次
名校
解题方法
10 . 如图,在矩形
中,
,
,
分别为边
,
的中点,
,
分别为线段
(不含端点)和
上的动点,满足
,直线
,
的交点为
,已知点
的轨迹为双曲线的一部分,则该双曲线的渐近线方程为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dcbfddee91a527e278d80608f0f35be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.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/fbb85d28f8bdeedad66fd7ec2a561455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/131e4c8344dcc29a53bd13f70eeea2eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9399c9a2a31b0e3165aea2d6ccc4f7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b06b75fb4e379ff3b99e68f40136cad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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2024-01-13更新
|
365次组卷
|
6卷引用:上海市行知中学2023-2024学年高二上学期期末数学试卷
上海市行知中学2023-2024学年高二上学期期末数学试卷江西省新余市实验中学2023-2024学年高二下学期开学摸底考试数学试卷(已下线)第2章 圆锥曲线 单元综合检测(重点)-2023-2024学年高二数学同步精品课堂(沪教版2020选择性必修第一册)(已下线)专题04 圆锥曲线(六大题型+优选提升题)-【好题汇编】备战2023-2024学年高二数学下学期期末真题分类汇编(沪教版2020选择性必修,上海专用)湖南省衡阳市第八中学2024届高三上学期第一次模拟测试数学试题(已下线)专题5 曲线轨迹与交点问题