名校
1 . 如图,在平面直角坐标系
中,过
外一点
引它的两条切线,切点分别为
,若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f798964a881ea48b2c79b7fd96ebd7.png)
,则称
为
的环绕点.
![](https://img.xkw.com/dksih/QBM/2021/8/2/2777681467408384/2782948712816640/STEM/0826976a-b1f6-4b0f-b7d9-ac20165ed90b.png?resizew=259)
(1)当
O半径为1时,
①在
中,
的环绕点是__________.
②直线
与
轴交于点
,与
轴交于点
,若线段
上存在
的环绕点,求
的取值范围;
(2)
的半径为1,圆心为
,以
为圆心,
为半径的所有圆构成图形
,若在图形
上存在
的环绕点,直接写出
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9347ab0d001ed7e8f51f9886ce88ac64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f798964a881ea48b2c79b7fd96ebd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b685bc5ff8d47424c0d4f2f8c08e58bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9347ab0d001ed7e8f51f9886ce88ac64.png)
![](https://img.xkw.com/dksih/QBM/2021/8/2/2777681467408384/2782948712816640/STEM/0826976a-b1f6-4b0f-b7d9-ac20165ed90b.png?resizew=259)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/091e86ca89e484b331fd90125a5e5af3.png)
①在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5f4280e5155144bc68b74ecd9e3de45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
②直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bebb3b7f47e0decd48e64cb32aaa5903.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/091e86ca89e484b331fd90125a5e5af3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9347ab0d001ed7e8f51f9886ce88ac64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/180735d52856f4393e40e28e7fcc95bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c013c86ffcabc839b93c5725519c7fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c00653a92e7962ecc3a9cc1a4a49e8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9347ab0d001ed7e8f51f9886ce88ac64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
20-21高二上·上海浦东新·期中
名校
2 . 在平面直角坐标系中,定义
为两点
、
的“切比雪夫距离”,又设点
及直线
上任一点
,称
的最小值为点
到直线
的“切比雪夫距离”,记作
.
(1)求证:对任意三点
、
、
,都有
;
(2)已知点
和直线
,求
;
(3)定点
,动点
满足
(
),请求出点
所在的曲线所围成图形的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/568ac4cea4f8cf844fad9fe21a3bb2b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ff82ebdfad5e7de1c7487b0b817a7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a53e311ee0b5085e7e5a45c606daa5d.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82923ea5d3a0b7bc6a2c529959324b0d.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/f6fb005483a774d04231b2904c05a15d.png)
(1)求证:对任意三点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ad7b990a583329c302c5afb091f1ae8.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac5225ff6aa3c06ff5c8437f88093f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94922febcf02e84401ab8631890532df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6fb005483a774d04231b2904c05a15d.png)
(3)定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b77e6b117cf9d90d7d31d7ebde3dbf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92c459780702ffeb63d0be6deb86e7c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45ba6b6aa6c3f9faba6b03bc193a6e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2020-11-12更新
|
2059次组卷
|
8卷引用:上海市华东师范大学第二附属中学2020-2021学年高二上学期期中数学试题
(已下线)上海市华东师范大学第二附属中学2020-2021学年高二上学期期中数学试题北京市第八中学2020-2021学年高二下学期期末数学试题(已下线)第1章 直线与方程(章末测试基础卷)-2021-2022学年高二数学同步单元测试定心卷(苏教版2019选择性必修第一册)(已下线)难关必刷02直线与方程-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(人教A版2019选择性必修第一册)(已下线)专题19 切比雪夫(已下线)专题27 直线与圆的综合应用-1(已下线)第五篇 向量与几何 专题19 抽象距离 微点4 抽象距离综合训练(已下线)重难点突破03 直线与圆的综合应用(七大题型)
3 . 斜三棱柱
中,底面
是正三角形,侧面
是矩形,
是线段
上的动点,记直线
与直线
所成的角为
,直线
与平面
所成的角为
,二面角
的平面角为
,则( )
![](https://img.xkw.com/dksih/QBM/2020/8/23/2534261632540672/2542512554500096/STEM/cbbfae60-6f9a-442c-afe8-b4d2d87bb279.png?resizew=187)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9399c9a2a31b0e3165aea2d6ccc4f7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9399c9a2a31b0e3165aea2d6ccc4f7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f77f400a3cf0acb19d4e4c7da2b80a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
![](https://img.xkw.com/dksih/QBM/2020/8/23/2534261632540672/2542512554500096/STEM/cbbfae60-6f9a-442c-afe8-b4d2d87bb279.png?resizew=187)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
4 . 已知长方体
的棱
,
,点
,
分别为棱
,
上的动点.若四面体
的四个面都是直角三角形,则下列命题正确的是__________ .(写出所有正确命题的编号)
①存在点
,使得
;
②不存在点
,使得
;
③当点
为
中点时,满足条件的点
有3个;
④当点
为
中点时,满足条件的点
有3个;
⑤四面体
四个面所在平面,有4对相互垂直.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/557a1bc648125cc09cb63412bc13ea1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a0ecba7e1969a265ff75bcb17ed9d2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/458d492ab8896be57a54ec905d8e2f4f.png)
①存在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48fb4d62850da19eaa4b793b6f75effc.png)
②不存在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc61562565dcbaa1bbeec6a307634c0b.png)
③当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
④当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
⑤四面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/458d492ab8896be57a54ec905d8e2f4f.png)
您最近一年使用:0次
2020-08-15更新
|
1313次组卷
|
4卷引用:安徽省阜阳市太和第一中学2020-2021学年高二上学期12月月考理科数学(奥赛班)试题
安徽省阜阳市太和第一中学2020-2021学年高二上学期12月月考理科数学(奥赛班)试题安徽省合肥市2020届高三下学期第三次教学质量检测数学(文)试题河南省焦作市温县第一高级中学2021-2022学年高二上学期11月月考文科数学试题(已下线)黄金卷14-【赢在高考·黄金20卷】备战2021高考数学全真模拟卷(新高考专用)
名校
解题方法
5 . 已知一圆锥底面圆的直径为3,圆锥的高为
,在该圆锥内放置一个棱长为
的正四面体,并且正四面体在该几何体内可以任意转动,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edb57d84f9bbcb3e30d4ce7e2e1e8604.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.3 | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2020-08-03更新
|
3108次组卷
|
13卷引用:湖北省武汉市2020届高三下学期6月适应性考试(供题一)理科数学试题
湖北省武汉市2020届高三下学期6月适应性考试(供题一)理科数学试题(已下线)专题10 空间几何体-2020年高考数学(理)母题题源解密(全国Ⅱ专版)(已下线)专题11 空间几何体-2020年高考数学(文)母题题源解密(全国Ⅱ专版)吉林省长春市第八中学2020届高三考前浏览卷数学(理)试题上海市松江二中2021-2022学年高二上学期期中数学试题(已下线)期中模拟预测卷01(测试范围:空间向量与立体几何、数列) -2022-2023学年高二数学上学期期中期末考点大串讲(沪教版2020必修第三册+选修一)(已下线)重难点02 几何体的表面积、体积、轴截面、多面体与球体内切外接问题 (重难点突破解题技巧与方法)-2022-2023学年高二数学考试满分全攻略苏教版(2019) 必修第二册 必杀技 第13章 立体几何初步 第13.3节 综合训练浙江省杭州市第四中学下沙校区2021-2022学年高一下学期期中数学试题浙江省杭州市余杭第一中学2021-2022学年年高一下学期阶段测试数学试题(已下线)专题7-1 立体几何压轴小题:截面与球(讲+练)-1河南省南阳市第一中学校2023届高三上学期第三次阶段性测试理科数学试题广东省汕头市潮阳实验学校2024届高三上学期元月阶段测试数学试题
名校
解题方法
6 . 已知圆
和点
.
(1)过点
向圆
引切线,求切线的方程;
(2)求以点
为圆心,且被直线
截得的弦长为8的圆
的方程;
(3)设
为(2)中圆
上任意一点,过点
向圆
引切线,切点为
,试探究:平面内是否存在一定点
,使得
为定值?若存在,请求出定点
的坐标,并指出相应的定值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560adea7b0d4fbe4131fc41f3fcbd871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73244638f26130289e00d2ca849b1802.png)
(1)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(2)求以点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30e24ed3fc5c755b30ebf84772654e1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da2f043e16eacb76ac42474a6f6d399e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
您最近一年使用:0次
2020-07-12更新
|
1776次组卷
|
5卷引用:江苏省南通市如东高级中学2019-2020学年高一下学期期中数学试题
7 . 在棱长为3的正方体
中,
为棱
的中点,
为线段
上的点,且
,若点
分别是线段
,
上的动点,则
周长的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e3fddd993a54d5bc009ffa617cd9158.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d945b17623cd01fa90180c4d4fca91f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2eb89294b31ffdd2680b4361e8994d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b51d3992644d37dc71c9b5a97d515c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020·浙江·三模
解题方法
8 . 斜线
与平面
成15°角,斜足为
,
为
在
内的射影,
为
的中点,
是
内过点
的动直线,若
上存在点
,
使
,则
则的最大值是_______ ,此时二面角
平面角的正弦值是_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4f1b40221f57567c67c1ba5ceb2f57b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/910ec9341909c0edd74ee755543c4c35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf1519f35e632196fd4fa7b750057d1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f06fcd0867de52ae9262cc71ab20990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c6c0c489d9162ae22d40f8cb4ad69f5.png)
您最近一年使用:0次
2020-06-19更新
|
1114次组卷
|
5卷引用:浙江省宁波市六校联考2020-2021学年高二上学期期中数学试题
浙江省宁波市六校联考2020-2021学年高二上学期期中数学试题(已下线)浙江省名校新高考研究联盟(Z20联盟)2020届高三下学期第三次联考数学试题重庆市2021届高三上学期第一次预测性考试数学试题(已下线)专题8-4 立体几何中求角度、距离类型-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)(已下线)专题18 空间几何题综合问题(体积、面积、角度、距离、轨迹等)(选填题)-3
9 . 在三棱锥
中,已知
,
,
,
,则三棱锥ABCD体积的最大值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ee826937d2add7a93aaa1422f8b736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b81c92924196614f1ad82b92decd9003.png)
您最近一年使用:0次
2020-06-08更新
|
1605次组卷
|
4卷引用:江西省名师联盟2020届高三5月联考理科数学试题
江西省名师联盟2020届高三5月联考理科数学试题四川省剑阁中学校2022-2023学年高二下学期第一次质量检测理科数学试题江西省丰城中学、高安二中等六校2021届高三1月联考数学(理)试题(已下线)第二章 立体几何中的计算 专题四 空间体积的计算 微点2 空间图形体积的计算综合训练【基础版】
名校
10 . 如图,AB是平面
的斜线段,A为斜足,点C满足
,且在平面
内运动,则有以下几个命题:
![](https://img.xkw.com/dksih/QBM/2020/5/27/2471932706570240/2472559896166400/STEM/0d83c1c0-eebe-423c-a66f-449017ca9222.png?resizew=267)
①当
时,点C的轨迹是抛物线;
②当
时,点C的轨迹是一条直线;
③当
时,点C的轨迹是圆;
④当
时,点C的轨迹是椭圆;
⑤当
时,点C的轨迹是双曲线.
其中正确的命题是__________ .(将所有正确的命题序号填到横线上)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4bb7d1b19d0f5f4d5982d87fa1914a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://img.xkw.com/dksih/QBM/2020/5/27/2471932706570240/2472559896166400/STEM/0d83c1c0-eebe-423c-a66f-449017ca9222.png?resizew=267)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500d68f2678989a5ce7431cfd51b019d.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500d68f2678989a5ce7431cfd51b019d.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2f2d7c81cb44416bcdf59419637682.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2f2d7c81cb44416bcdf59419637682.png)
⑤当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2f2d7c81cb44416bcdf59419637682.png)
其中正确的命题是
您最近一年使用:0次
2020-05-28更新
|
1850次组卷
|
5卷引用:2020届湖北省八校(黄冈中学、华师一附中、襄阳四中、襄阳五中、荆州中学等)高三下学期第二次联考数学(文)试题
2020届湖北省八校(黄冈中学、华师一附中、襄阳四中、襄阳五中、荆州中学等)高三下学期第二次联考数学(文)试题(已下线)第三章 圆锥曲线与方程(选拔卷)-【单元测试】2021-2022学年高二数学尖子生选拔卷(苏教版2019选择性必修第一册)江西省临川第二中学2022-2023学年高二上学期第三次月考数学试题(已下线)专题7-2 立体几何压轴小题:角度与动点、体积(讲+练)-2(已下线)专题18 空间几何题综合问题(体积、面积、角度、距离、轨迹等)(选填题)-1