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1 . 设向量
,
,
不共面,空间一点P满足
,则A,B,C,P四点共面的一组数对
是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f605ec0729ce6d72237ad662a06862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc9656d8286c4d6fa309d6ae347c89e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef8337706c550bc095d7a2bd872221a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a8d49bf33e578b25811e22e26dbf584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d685c54089867c395a4c49ba01b1237.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2022-11-27更新
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辽宁省大连市第八中学2022-2023学年高二上学期12月月考数学试题河南省信阳市2022-2023学年高二上学期期中数学试题山东省菏泽第一中学2022-2023学年高二上学期12月月考数学试题(已下线)6.1.3 共面向量定理-【题型分类归纳】2022-2023学年高二数学同步讲与练(苏教版2019选择性必修第二册)山东省济南市长清区长清第一中学2023-2024学年高二上学期10月月考数学试题山东省德州市夏津县第一中学2023-2024学年高二上学期10月月考数学试题
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2 . 已知
,
,
,若
三个向量共面,则实数
等于__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/701b7381d4bd87cf0627eae443a021f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f746fbe3c917a4383c3aacadb290c328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e09307cf7307e54d53bd1a743207da3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae951e0bb5a2a406f1572fc1e4964265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2022-11-24更新
|
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3卷引用:辽宁省大连市第八中学2022-2023学年高二上学期期中考试数学试题
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3 . 如图所示,在平行四边形
中,
,
,将它沿对角线
折起,使
与
成
角,则
间的距离等于( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/d664f0d2-5758-4595-a17b-aa502053c0da.png?resizew=212)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/883fc5e3faf39829d60804b59deb1730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3d69c69c46ac34f560546c22af120be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbdb21011ea821b91d539cb763aac649.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/d664f0d2-5758-4595-a17b-aa502053c0da.png?resizew=212)
A.![]() | B.1 | C.![]() | D.1或![]() |
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4 . 已知向量
,且
与
相互垂直,则
值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ca42823f8595f58e0607d5663a07f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8d5d06c8ba359e2f95bd6abbeb9d696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/142ceb4429531d3ed6c9efa3c53271aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-11-24更新
|
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2卷引用:辽宁省大连市第八中学2022-2023学年高二上学期期中考试数学试题
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解题方法
5 . 如图,直三棱柱
中,
,
,E是BC中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/4ff79375-4ee6-4d3c-9a82-424728b8092a.png?resizew=149)
(1)若棱
上存在一点M,满足
,求AM的长;
(2)求直线BC与平面
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f90e17995e2f71e297d94ae51c7e5b1f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/4ff79375-4ee6-4d3c-9a82-424728b8092a.png?resizew=149)
(1)若棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c904f240a519d7e1dbd6bb69ae4655a2.png)
(2)求直线BC与平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db3ef97d64e58d311019b70fe5e2cc0d.png)
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6 . 与向量
共线的单位向量是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48440821e27e98cd711c5267f4ac3a5c.png)
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7 . 下列说法错误的是( )
A.若空间向量![]() ![]() ![]() |
B.A,B,C三点不共线,空间中任意点O,若![]() |
C.![]() ![]() ![]() ![]() ![]() |
D.若![]() |
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2022-11-22更新
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辽宁省大连市大连育明高级中学2022-2023学年高二上学期期中数学试题(已下线)期末押题预测卷01(范围:选择性必修第一册、数列)-【单元测试】2022-2023学年高二数学分层训练AB卷(人教A版2019)山东省枣庄市滕州市第一中学2022-2023学年高二上学期12月月考数学试题山东省青岛市青岛第一中学2023-2024学年高二上学期10月月考数学试题(已下线)第一章 空间向量与立体几何(单元重点综合测试)-2023-2024学年高二数学单元速记·巧练(人教A版2019选择性必修第一册)
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解题方法
8 . 如图,一个结晶体的形状为平行六面体
,其中,以顶点A为端点的三条棱长均为6,且它们彼此的夹角都是60°,下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/40027a07-65c1-4024-9b2b-08cfd30335cb.png?resizew=251)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/40027a07-65c1-4024-9b2b-08cfd30335cb.png?resizew=251)
A.![]() ![]() | B.![]() |
C.向量![]() ![]() | D.![]() |
您最近一年使用:0次
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9 . 已知空间向量
与
共线,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c070558ad75a5fdf3cab3ade49c6cf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334517b7956194a79fadaabac15f4f77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5113986d9507fc5015e71989831c128b.png)
A.-1 | B.2 | C.-2 | D.1 |
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2022-11-22更新
|
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2卷引用:辽宁省大连市大连育明高级中学2022-2023学年高二上学期期中数学试题
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10 . 如图所示,三棱柱
中,
,
,
,
,
,
,
是
中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/32045bd9-c4bb-43e2-9ba8-6c33802c9827.png?resizew=133)
(1)用
,
,
表示向量
;
(2)求
的模.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/319ad2785c82f621c4b807bb9a2493c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb95d089784702a0b6d459f18a4e1e72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22226e7f4eae1d4c37a74321b60f0870.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/887ed8e1813cc8161dcd79bad4da6e2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e642b845156e16c2bc64ac18ad55da08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f55c20db02b6a89bd95cd1587705fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/32045bd9-c4bb-43e2-9ba8-6c33802c9827.png?resizew=133)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a0b19e69be46452425916a0fcb49c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24cc37b6cfb037ac5e114daeb3a3b68f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24cc37b6cfb037ac5e114daeb3a3b68f.png)
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2022-11-20更新
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