名校
解题方法
1 . 在三维空间中,定义向量的外积:
叫做向量
与
的外积,它是一个向量,满足下列两个条件:
①
,
,且
,
和
构成右手系(即三个向量的方向依次与右手的拇指、食指、中指的指向一致,如图所示);
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/27/804d6c04-5300-4508-8730-5eb57817e31f.png?resizew=118)
②
的模
(
表示向量
,
的夹角).
在正方体ABCD-A1B1C1D1中,有以下四个结论,正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aba64ae92194bc4f0f6e49725471542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/413f366ed5b3935f7699a0cfb7abbf41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2dfac206cd992c78a4eeb784da92372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aba64ae92194bc4f0f6e49725471542.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/27/804d6c04-5300-4508-8730-5eb57817e31f.png?resizew=118)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aba64ae92194bc4f0f6e49725471542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f5eff5eef2b3ba643756036521e750e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daef91a6dc58061db290e3264716e0c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
在正方体ABCD-A1B1C1D1中,有以下四个结论,正确的有( )
A.![]() | B.![]() ![]() |
C.![]() | D.![]() |
您最近一年使用:0次
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1421次组卷
|
19卷引用:重庆市铁路中学校2022-2023学年高二上学期期中数学试题
重庆市铁路中学校2022-2023学年高二上学期期中数学试题重庆市第七中学校2021-2022学年高二上学期期中数学试题湖南省长沙市四校2022-2023学年高二上学期期中联考数学试题江苏省南通市启东市、通州区2020-2021学年高二上学期期末联考数学试题广东省深圳市布吉中学2021-2022学年高二上学期期中数学试题江苏省南京市二十九中2020-2021学年高二下学期期初数学试题(已下线)解密10 空间向量与立体几何(讲义)-【高频考点解密】2022年高考数学二轮复习讲义+分层训练(浙江专用)湖南省长沙市雅礼中学2022-2023学年高三上学期月考(四)数学试题江苏省常州市华罗庚中学2022-2023学年高二下学期3月学情调查数学试题(已下线)模块三 专题3 小题满分挑战练(1)(苏教版高二)(已下线)第07讲 空间向量的数量积运算9种常见考法归类(1)陕西省西安市第八十三中学2023-2024学年高二上学期10月第一次月考数学试题广东省佛山市南海区南海中学分校2023-2024学年高二上学期10月阶段性测试数学试题安徽省黄山市屯溪第一中学2023-2024学年高二上学期10月月考数学试题江苏省淮安市2021届高三下学期5月模拟数学试题(已下线)思想02 运用数形结合的思想方法解题(精讲精练)-2(已下线)模块一 专题11 空间向量与立体几何(已下线)江苏省淮安市2024届高三第一次调研测试数学试题河北省部分学校2023-2024学年高三上学期五调考试数学试题
2 . 椭圆
的焦距为2,左、右顶点分别为
,
,点
是椭圆
上异于左右顶点的点,直线
与直线
的斜率之积为
.
(1)求椭圆
的方程;
(2)直线
与椭圆
相切于点
,直线
与
平行且与圆
相切,直线
交椭圆
于
,
两点,坐标原点
位于直线
,
之间,记
,
的面积分别为
,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/800c5e266b4ad8462a46970f0a232d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f46b053f98b1d05a2043e94eeaefea87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d78fd95f89dec2d373fa57f02acd739f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a11cb104b04c4e6a1be700e81da279a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235f0a6fb218d28383e6f27f2df1f50f.png)
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名校
解题方法
3 . 如图,
是以
为直径的圆
上异于
,
的一点,平面
平面
,
是边长为2的等边三角形,
,
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/395ad345-a00b-4f75-9a2d-65eb1718226e.png?resizew=162)
(1)求证:
;
(2)过直线
与直线
平行的平面交棱
于点
,线段
上是否存在一点
,使得二面角
的正弦值为
?若存在,求
的值;否则,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/6d077f6da8b2c00b152d4679aa2ed7f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fbfcae2cecc98e2d6c16dde6d3ec1c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/395ad345-a00b-4f75-9a2d-65eb1718226e.png?resizew=162)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbfbaf73297240eb116f22489519895a.png)
(2)过直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef523d7e6bcb947369297e2b82d95f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059d02ae074c7c2f7dfde8058dfa55ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a037e6af24abbba2635a102d1b861e75.png)
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2卷引用:重庆市2022-2023学年高二上学期期末数学试题
名校
4 . 已知四棱锥
中,
平面
,
,
,点
在棱
上,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/cff13d82-2168-428b-9d54-bb9868639b8d.png?resizew=185)
(1)证明:
;
(2)若
,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee8ef58be8708144272538ee427fb92c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3087d08909ae0e14365e866ce4a4d0b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/cff13d82-2168-428b-9d54-bb9868639b8d.png?resizew=185)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a03d3b1a7b201f380f960db4b6ff2943.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b1eee39a211e575d5eece4ee50e77c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
您最近一年使用:0次
2023-02-09更新
|
363次组卷
|
2卷引用:重庆市2022-2023学年高二上学期期末数学试题
解题方法
5 . 设双曲线
,点
,
是双曲线
的左右顶点,点
在双曲线
上.
(1)若
,点
,求双曲线
的方程;
(2)当
异于点
,
时,直线
与
的斜率之积为2,求双曲线
的渐近线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cfa22139b3e9c9a73500e1ba19f52.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/198fe541f7adf150d03ffb7fe3da8df0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6a15f2579aa50941300a9dd57f56dc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/800c5e266b4ad8462a46970f0a232d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f46b053f98b1d05a2043e94eeaefea87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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6 . 与平面解析几何类似,在空间直角坐标系
中,平面与直线可以用关于
,
,
的三元方程来表示,过点
且一个法向量为
的平面
的方程为
;过点
且一个方向向量为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66715b999d22ac3a633d705ab204c5df.png)
的直线
的方程为
.已知平面
的方程为
,直线
的方程为
,若直线
在平面
内,则经过原点
且与直线
垂直的平面
的方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5e336d6ca2cae3d6e6c3810d7e521a4.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/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf95be25d34a7366bf4060d081329c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b094075a5959ef2fe46e32893091f03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b523a8c1993478f6599680dc3b3dc45b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf95be25d34a7366bf4060d081329c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66715b999d22ac3a633d705ab204c5df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c788af35bb31c871f05a6439822f5f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933946a0cb62c2c472d18875328e015f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75c0f2ca17ae8da93442d3b16edce720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdd80501dc690fd4342b7273ba341e2b.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/5b5858ee1ce52b251816757257a11c29.png)
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解题方法
7 . 与椭圆
有公共的焦点且离心率为2的双曲线的标准方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49358e49ae68a92444b5e732a79b28b4.png)
您最近一年使用:0次
2023-02-09更新
|
306次组卷
|
2卷引用:重庆市2022-2023学年高二上学期期末数学试题
8 . 已知
,则方程
表示的曲线可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e312356d4ec95d9779c53dd9fcedec8.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
9 . 如图,在棱长为的1正方体
中,点
是线段
的中点,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/6d123773-05f7-4227-ba8e-a7cf1d928a17.png?resizew=179)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9cc6d0578ccc0de834539833ec03aeb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/6d123773-05f7-4227-ba8e-a7cf1d928a17.png?resizew=179)
A.1 | B.0 | C.![]() | D.![]() |
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解题方法
10 . 平面直角坐标系中,已知点T1(-2,0),
(2,0),
(-1,0),
(1,0).直线MT1,MT2相交于点M,且它们的斜率之积为-
,延长F1M至点P,使得
.
(1)求点M和点P的轨迹方程,并说明其轨迹;
(2)设点M和点P的轨迹分别为
,
,经过
的直线l交
于A,C两点,经过
且与l垂直的直线交
于B,D两点.若四边形ABCD的面积为
,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9275bd8ce17fcc4a786510b008414ab0.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/8b2a698891d42c70b597f0da4f215f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4ecec67da75d58e1207efbf77e157cf.png)
(1)求点M和点P的轨迹方程,并说明其轨迹;
(2)设点M和点P的轨迹分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/522230546d4b802094e86ceb48c2ba38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4f150ab98bde511e0f65d9bafab031.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/522230546d4b802094e86ceb48c2ba38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4f150ab98bde511e0f65d9bafab031.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c423cfa71956862edbed10a5ba12d0a.png)
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