解题方法
1 . 正方体
的边长为1,点
分别为
边的中点,
是侧面
上动点,若直线
与面
的交点位于
内(包括边界),则所有满足要求的点
构成的图形面积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86e203b7c9a6600e0272c58a23733490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4415113c4a0992bde0e16c3203f5d416.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ebb05874eb3353d754af24c9974273e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b1c36c76bdce8c8f813bf1141add6fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661a1c69ca9a4eca984bb4c8d72f037a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/8/5fd3f549-eac9-4126-9bfd-80ddd0db58f3.png?resizew=169)
您最近一年使用:0次
2 . 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)
您最近一年使用:0次
22-23高二下·上海浦东新·开学考试
名校
3 . 如图,已知直四棱柱
的底面是边长为4的正方形,
,点
为
的中点,点
为底面
上的动点,则下列选项不正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/7/8d7a1129-6160-4534-8515-0c16bd64757a.png?resizew=152)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a0c3a4e61b97fa9bc58f3179fc2958.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3515615cdd72a00d1a3658f500374612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/7/8d7a1129-6160-4534-8515-0c16bd64757a.png?resizew=152)
A.当![]() ![]() ![]() ![]() |
B.当![]() ![]() ![]() ![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() ![]() |
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名校
4 . 在正四棱柱
中,
,E 为
中点,
为正四棱柱表面上一点,且
,则点
的轨迹的长为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/577401c67f2656fc1d4c80acb70876b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34dca4e1f373b758b5963db675def224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2023-03-04更新
|
1642次组卷
|
7卷引用:上海市七宝中学2023届高三三模数学试题
上海市七宝中学2023届高三三模数学试题(已下线)第10章 空间直线与平面(压轴题专练)-2023-2024学年高二数学单元速记·巧练(沪教版2020必修第三册)江西省重点中学盟校2023届高三下学期第一次联考数学(文)试题广西壮族自治区玉林市2023届高三三模考试数学(文)试题江西省五校2022-2023学年高一直升班下学期联考数学试题湖南省长沙市长郡中学2023届高三二模数学试题(已下线)重难点突破04 立体几何中的轨迹问题(六大题型)
5 . 定长为
的线段
的两端点分别在
轴、
轴上滑动,求线段
中点的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
解题方法
6 . 动点P到两定点A(-4,0)、B(4,0)距离之和为10,则点P的轨迹方程为________ .
您最近一年使用:0次
2023-01-31更新
|
659次组卷
|
4卷引用:上海市奉贤区致远高级中学2022-2023学年高二上学期期末数学试题
名校
解题方法
7 . 在平面直角坐标系
中,已知点
,
,动点
满足
,记点
的轨迹为曲线
,则下列命题中,可能成立的个数为( )
(I)曲线
上所有的点到点
的距离大于2
(II)曲线
上有两点到点
与
的距离之和为6
(III)曲线
上有两点到点
与
的距离之差为2
(IV)曲线
上有两点到点
的距离与到直线
的距离相等
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4e65611df39794fec95423cc1289d91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50c2b7d9030bebebc50360b96ad4607d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ef325f250c0bb849ae7626b89777a82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(I)曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3a9912acb32ad43976b037c0f541ac5.png)
(II)曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d0297ab5c30014b8ed712f03a8bdda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/973aa6f1a268dbd02fa5236dc6f58647.png)
(III)曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d0297ab5c30014b8ed712f03a8bdda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/973aa6f1a268dbd02fa5236dc6f58647.png)
(IV)曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf75310b48015af5b03e8b4ea7a16ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/853e3c15d116fb61f236ab239c50b114.png)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
名校
8 . 已知点M(2,1)和直线
,若动点P到l的距离等于|PM|,则点P的轨迹是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dceb0447c77cc8139eb09653b1cc515.png)
A.椭圆 | B.双曲线 | C.抛物线 | D.直线 |
您最近一年使用:0次
9 . 已知平面上三点
,
,
,若动点P满足
,有以下两个命题:①三角形APB面积的最大值为1;②
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a44fbffcf19a245f3428ba0c35937993.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852b303689c31189cd47bb4a3220f9fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3752eaf8b6f65d3faf930dc54bf2ef1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abebec13ecd437c05ceeece94889b2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96cf4e0597c02b029561a2d6d82a2ad4.png)
A.①为真命题,②为真命题 | B.①为真命题,②为假命题 |
C.①为假命题,②为真命题 | D.①为假命题,②为假命题 |
您最近一年使用:0次
10 . 一动圆与圆
外切,同时与圆
内切,则动圆圆心的轨迹方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f581d0a15670dfbbcf1f97d37d111810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0140ed1a85f6e92ffa6fa108184e7333.png)
您最近一年使用:0次