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1 . 在四棱锥
中,底面
是平行四边形,
是棱
上一点,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee477d164d38ff067fc4ce342cf6d380.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e0250d80679c912a611e1521229cf24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6aab790b71d05eb637c0dd0e78bf3ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee477d164d38ff067fc4ce342cf6d380.png)
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2023-12-31更新
|
327次组卷
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3卷引用:3.2 空间向量基本定理(五大题型)(分层练习)-2023-2024学年高二数学同步精品课堂(沪教版2020选择性必修第一册)
(已下线)3.2 空间向量基本定理(五大题型)(分层练习)-2023-2024学年高二数学同步精品课堂(沪教版2020选择性必修第一册)安徽省江淮名校2023-2024学年高二上学期12月阶段性联考数学试题江西省部分学校2023-2024学年高二上学期1月期末数学试题
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2 . 平行六面体中,若
,
,
,则
=
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3 . 已知
,若
,则
的坐标是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5437f850543536910cc2a1c271312e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12775390b9fb8f742175c95ead65df0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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4 . 已知空间四边形
,其对角线为
、
,M、N分别是对边
、
的中点,点G在线段
上,且
,现用基底
表示向量
,有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f701bd8ed66d3f4d3304b8cd62e9dec0.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc9ceae23b51a9407f9962b6328722f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639cdeadbc9e566f81d65a0506823b80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4b9dda541ca792577227f3014ddc6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f701bd8ed66d3f4d3304b8cd62e9dec0.png)
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5 . 如图,空间四边形OABC中,点M,N分别在OA,BC且,若
,则
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解题方法
6 . 在平行六面体
中,
为棱
的中点,
为棱
上一点.记
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2274dc3fa66691f74ee9a5b016c1906c.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f910087a697ee4c768ca68b8ef14cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a4a614c28b4b9f4a9cc67f0d0c1c7a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2274dc3fa66691f74ee9a5b016c1906c.png)
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7 . 定义:设
是空间的一个基底,若向量
,则称有序实数组
为向量
在基底
下的坐标.已知
是空间的单位正交基底,
是空间的另一个基底,若向量
在基底
下的坐标是
.则向量
在基底
下的坐标是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83e566988b6fab97d461876e88efd0ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd33a4fb7ee6987a540f96ff057b7b84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b525d8c768efd801ab58bc4c0da9221e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4478fcaef66e8a6a96925ce12d0f8e8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83e566988b6fab97d461876e88efd0ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5401d7f4a297c8b097e74bdebaaa8570.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82eedc2d1529ca318b38f6a9a3065a03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4478fcaef66e8a6a96925ce12d0f8e8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82eedc2d1529ca318b38f6a9a3065a03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9d567af011a49b2ab880c904dd2637b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4478fcaef66e8a6a96925ce12d0f8e8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5401d7f4a297c8b097e74bdebaaa8570.png)
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8 . 四面体OABC中,M,N分别是OA,CB的中点,点G在线段MN上,且使
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee477d164d38ff067fc4ce342cf6d380.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e01b4d44a995fceb0ac1d074f681df92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933cf4d91008779cec543cc771fd9593.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee477d164d38ff067fc4ce342cf6d380.png)
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2023-09-03更新
|
685次组卷
|
2卷引用:北师大版(2019) 选修第一册 数学奇书 第三章 空间向量与立体几何 §3 空间向量基本定理及空间向量运算的坐标表示 3.1 空间向量基本定理
9 . 设
,且
是空间向量的一组基底.给出下列向量组:①
,②
,③
,④
.其中可以作为空间向量的一组基的有__________ 个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9381c531c4418411b815a73a244f7e9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43208c7885ae4d4763c7d7f5df84fe1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9e7250e6d5c63fe8346aebafe2c2b0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13930ec9a2ee0172f2d20d8c168c698d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bda6fedc76e194d7d50a8c4eb93df1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21fd7d1fc93a31174e9464b5de7f79a9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/4/eceeeb8e-cd25-4953-8801-523f568d851e.png?resizew=163)
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10 . 正方体
中,
分别是
的中点,以
为一组基,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/454ff5c017ed6259c1b315a5cc0ffb55.png)
,则x=________ ,y=________ ,z=________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9fd4dfee3258dc4e386330bac4ef0f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f524f2c55093c4357a1761e4bc8a8963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ae9800972c0148c781d7e863040c6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/454ff5c017ed6259c1b315a5cc0ffb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6072550f0f3c6e91ab7eab1f3aad7b7c.png)
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