名校
解题方法
1 . 长方体
中,
.
(2)记(1)中截面为
,若
与(1)中过
点的长方体的三个表面成二面角分别为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adddcf2b210fdeda3e7795e779bd86aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e30816e31c2f392a4c975d539b458d89.png)
(2)记(1)中截面为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6a1f9f284b23e927ccffd063cb2d4ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dbbde2388c030a896c364e62675190d.png)
您最近一年使用:0次
名校
解题方法
2 . 如图,正方体
的棱长为
分别为棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/478dce1e-1612-4f04-96c4-020d8b8e0da0.png?resizew=161)
(1)请在正方体的表面完整作出过点
的截面,并写出作图过程;(不用证明)
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b684d2e78a0eb1b406913f2730e1d226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5307e04a84a0621e4d5bd2aaa1980ef.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/478dce1e-1612-4f04-96c4-020d8b8e0da0.png?resizew=161)
(1)请在正方体的表面完整作出过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6f5c5097e8b1f6c46b744ea1630d41e.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/378daab67e7e1d1542e6e25f0f259185.png)
您最近一年使用:0次
2024-03-07更新
|
504次组卷
|
4卷引用:河南省九师联盟2024届高三上学期2月开学考试数学试卷
河南省九师联盟2024届高三上学期2月开学考试数学试卷甘肃省部分学校2024届高三下学期2月开学考试数学试题(已下线)重难点6-2 空间几何体的交线与截面问题(8题型+满分技巧+限时检测)内蒙古自治区赤峰市松山外国语学校2024届高三下学期开学考试数学(理)试题
解题方法
3 . 如图1所示是一种作图工具,在十字形滑槽上各有一个活动滑标M,N,有一根旋杆将两个滑标连成一体,
,D为旋杆上的一点且在M,N两点之间,且
.当滑标
在滑槽
内做往复运动,滑标
在滑槽
内随之运动时,将笔尖放置于
处进行作图,当
和
时分别得到曲线
和
.如图2所示,设
与
交于点
,以
所在的直线为
轴,以
所在的直线为
轴,建立平面直角坐标系.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/5cc1f08d-7066-4a34-9dc3-41f6baebba20.png?resizew=260)
(1)求曲线
和
的方程;
(2)已知直线
与曲线
相切,且与曲线
交于A,B两点,记
的面积为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cbdd945cdadb7dca0d281d791374573.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b51683217c320034d6c96ac78ae75afd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500d68f2678989a5ce7431cfd51b019d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2f2d7c81cb44416bcdf59419637682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/5cc1f08d-7066-4a34-9dc3-41f6baebba20.png?resizew=260)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2f155927c5a530f98c239730c4d268f.png)
您最近一年使用:0次
4 . 中心在原点的双曲线
的焦点在x轴上,且焦距为4,请从下面3个条件中选择1个补全条件,并完成后面问题:
①该曲线经过点
;
②该曲线的渐近线与圆
相切;
③点
在该双曲线上,
,
为该双曲线的左、右焦点,当点
的纵坐标为
时,以
,
为直径的圆经过点
.
(1)求双曲线C的标准方程;
(2)过定点
能否作直线
,使
与此双曲线相交于
两点,且
是弦
的中点?若存在,求出
的方程;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
①该曲线经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aab000962b3e21db0bd949eb7a0d6fc.png)
②该曲线的渐近线与圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea31a691dd967aa83caf78e0a2e95d05.png)
③点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)求双曲线C的标准方程;
(2)过定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/355dffb42861f3e297694f4be77c694c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
解题方法
5 . 已知直线
:
与双曲线
:
(
,
)相交于
,
两点,双曲线
的左、右顶点分别为
,
,若直线
与
相交于点
,则下列说法中错误 的是________ .(填写所有错误 命题的序号)
①实数
的取值范围为
或
;
②直线
与直线
的斜率之积为定值;
③点
在曲线
上;
④
的面积最大值为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](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/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
①实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5d8b82a62adae1f46b780881e70a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26637c1957934d6073bdcf795e51a362.png)
②直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
③点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/703b40a6293ed9e33001e2919379b168.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
您最近一年使用:0次
解题方法
6 . 在正方体
中,N为底面ABCD的中点,P为棱
上的动点(不包括两个端点),M为线段AP的中点,则下列结论正确的序号是______ .(填写所有正确结论的序号)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/d6a7420a-c7d0-49d3-a377-473c31479734.png?resizew=159)
(1)CM与PN是异面直线
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9e477a86752c9bd276a61651e0f3caf.png)
(3)过P,A,C三点的正方体的截面一定不是等腰梯形
(4)平面
平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/d6a7420a-c7d0-49d3-a377-473c31479734.png?resizew=159)
(1)CM与PN是异面直线
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9e477a86752c9bd276a61651e0f3caf.png)
(3)过P,A,C三点的正方体的截面一定不是等腰梯形
(4)平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/784322661bccfc742ca25364b0388b46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2bf9ef324f1289e205e29fed105c38e.png)
您最近一年使用:0次
2022-03-23更新
|
386次组卷
|
3卷引用:河南省洛阳市2021-2022学年高三第二次统一考试文科数学试题
10-11高二下·湖北襄阳·期中
名校
7 . 有下列四个命题:①“若
,则
,
互为倒数”的逆命题;②“面积相等的三角形全等”的否命题;③“若
,则
有实数解”的逆否命题;④“若
,则
”的逆否命题.其中真命题为________ (填写所有真命题的序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377a2333ff8c63cbdb20b882d6d5a7ec.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/347c62b44fae618a37c145b3b5d1f1db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5707186257494f1fea86066f2778b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
您最近一年使用:0次
2020-01-07更新
|
294次组卷
|
12卷引用:2011-2012学年河南省平顶山市高二下 期末调研考试理科数学试卷
(已下线)2011-2012学年河南省平顶山市高二下 期末调研考试理科数学试卷(已下线)2010-2011年湖北省襄阳四校高二第二学期期中考试文数(已下线)2011-2012学年黑龙江省哈师大附中高二上学期期中文科数学试卷(已下线)2011-2012学年安徽省太湖中学高二下学期期中文科数学试卷(已下线)2012-2013学年湖南省浏阳一中高二下学期第一次月考文科数学试卷2015-2016学年江苏省沭阳县高二上学期期中考试数学试卷2015-2016学年河北省秦皇岛市卢龙县高二上学期期末理科数学试卷沪教版 高一年级第一学期 领航者 第一章 1.7 复习与小结(2)江西省赣州市寻乌中学2019-2020学年高二上学期第二次段考数学(文)试卷上海市上海外国语大学附属外国语学校2017-2018学年高一上学期10月月考数学试题上海市上海外国语大学附属外国语学校2015-2016学年高一上学期期中数学试题(已下线)专题03+常用逻辑用语(1)(命题,充分条件与必要条件)-2020-2021学年新教材高一数学秋季辅导讲义(沪教版2020)
8 . 某手机代工厂对生产线进行升级改造评估,随机抽取了生产线改造前、后100个生产班次的产量进行对比,改造前、后手机产量(单位:百部)的频率分布直方图如下:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/5c3cd587-8662-491f-ab04-4ca3db5bfd2b.png?resizew=351)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/67b06bd4-b364-4dfa-8463-2f7260f45bbb.png?resizew=333)
(1)设改造前、后手机产量相互独立,记
表示事件:“改造前手机产量低于5000部,改造后手机产量不低于5000部”,视频率为概率,求事件
的概率;
(2)填写下面
列联表,并根据列联表判断是否有
的把握认为手机产量与生产线升级改造有关:
(3)根据手机产量的频率分布直方图,求改造后手机产量的中位数的估计值(精确到0.01).
参考公式:随机变量
的观测值计算公式:
,其中
.临界值表:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/5c3cd587-8662-491f-ab04-4ca3db5bfd2b.png?resizew=351)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/67b06bd4-b364-4dfa-8463-2f7260f45bbb.png?resizew=333)
(1)设改造前、后手机产量相互独立,记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)填写下面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b72fcdc709e77910cd36a26369648b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95c487ba8259608d3cb24fb594ffbd7b.png)
手机产量![]() | 手机产量![]() | |
改造前 | ||
改造后 |
(3)根据手机产量的频率分布直方图,求改造后手机产量的中位数的估计值(精确到0.01).
参考公式:随机变量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2581192317ef233ccdccfc48ac29b52b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bc485c58dbd6e50bfb352030f4a1c42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/356b05e46b10ee51c3e43546d73ec96c.png)
![]() | 0.100 | 0.050 | 0.010 | 0.001 |
![]() | 2.706 | 3.841 | 6.635 | 10.828 |
您最近一年使用:0次
9 . 已知点
的坐标分别是
,直线
相交于点
,且它们的斜率分别为
,下列命题是真命题的有____________ .(只填写序号)
①若
,则
的轨迹是椭圆(除去两个点)
②若
,则
的轨迹是抛物线(除去两个点)
③若
,则
的轨迹是双曲线(除去两个点)
④若
,则
的轨迹是一条直线(除去一点)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6917df35ab960d5958af89095219434.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ec7bcf5820dfe70290259c2d7ac1ea5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49c8d6f4eb8d272265fe1ec25e1b8a3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a690a05dc243e3c6736a6de514106ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7250bd16e71812ca4985abb14b27fccf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
10 . 下列结论:
①若
,则“
”成立的一个充分不必要条件是“
,且
”;
②存在
,使得
;
③若
在
上连续且
,则
在
上恒正;
④在锐角
中,若
,则必有
;
⑤平面上的动点
到定点
的距离比
到
轴的距离大1的点
的轨迹方程为
.
其中正确结论的序号为_________ .(填写所有正确的结论序号)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a9344f4fca7b9779ca7720e5277ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bec124eb33e5ab4601b4b70f70913b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
②存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d5abce09e73e31b37961de3da8fa38e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/787ef778b8c90778644b6f34d2f851b0.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b639b8a34097101c0a4767ea34c13884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ec863a58386c4ef4816602a36d9daa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b639b8a34097101c0a4767ea34c13884.png)
④在锐角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56ac8e446826ea6e653cd1ac6d5d6106.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2264c134952d41fb9bcb90e6c72c83.png)
⑤平面上的动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
其中正确结论的序号为
您最近一年使用:0次
2018-03-02更新
|
386次组卷
|
2卷引用:河南省豫南九校2018届高三下学期第一次联考试题理科数学