名校
1 . 已知空间中三点
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fee493bf1eac50f2ae85d4f4b9e393.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d3f874bbb4536aa563f6a530934d0a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ad11597e0c15853ed65e1e5c0058b4b.png)
A.![]() | B.![]() |
C.![]() | D.A,B,C三点共线 |
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2022-08-30更新
|
1749次组卷
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13卷引用:湖南省怀化市2022-2023学年高二上学期开学考试数学试题
湖南省怀化市2022-2023学年高二上学期开学考试数学试题湖南省娄底市新化县第一中学2022-2023学年高二上学期期末线上测试数学试题重庆市万州清泉中学2022-2023学年高二上学期9月月考数学试题浙江省温州市平阳县万全综合高级中学2022-2023学年高二上学期10月检测数学试题重庆市涪陵第二中学校2022-2023学年高二上学期第一次月考数学试题福建省厦门第六中学2022-2023学年高二上学期期中质量检测数学试题重庆市第七中学校2022-2023学年高二上学期期中数学试题黑龙江省哈尔滨市第一中学校2022-2023学年高二上学期11月月考数学试题河南省南阳市邓州市邓州春雨国文学校2022-2023学年高二下学期6月月考数学试题山东省枣庄市第八中学2023-2024学年高二上学期第一阶段性检测数学试题(一) 云南省昆明市云南师范大学附属中学2023-2024学年高二上学期10月月考数学试题福建省厦门外国语学校2023-2024学年高二上学期10月阶段性检测数学试题河北华北油田第五中学2023-2024学年高二上学期十月月考数学试题
21-22高二·湖南·课后作业
2 . (1)设
,
分别是不重合的直线
,
的方向向量,判断
,
的位置关系.
①
,
;
②
,
.
(2)设
,
分别是两个不同的平面
,
的法向量,判断
,
的位置关系.
①
,
;
②
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a92e6eba8dab638fd66831cd3a0b6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427fa45527d0ce469bfd060bf6f991f3.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/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90cfc1cefe7b67fb229ab9e401469d22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03e2d5605b90809709ee90ac67ce9ae2.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9653bb37520d76ee6fa6ebba221daf9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b00244a2319d1ee2ba150688f591608.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b268bd72d3067d422b5f368f5cfda3c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/623e653171a8553b8cd94b9868fbac67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891947af5a6cfe8fb721c5234f118771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee32ab7bf0f122bf6f71338dbb8b2a56.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97cc049192dc9b2fc817bdc7dcfabf77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c6834a01b2878c820f7f53c7c37aeb.png)
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21-22高二·湖南·课后作业
名校
3 . 下图是一个机器人手臂的示意图.该手臂分为三段,分别可用向量
,
,
代表.
代表整条手臂,求
;
(2)求
所代表的点与原点之间的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4dba1805a326f85d0eca6430bc14fb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d56c6ef3478e21eeae9db1826f8bf110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52f6d5dc6cb53c7fbfd34f0855da33e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec655f610928ca21831e26645a21e99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec655f610928ca21831e26645a21e99c.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec655f610928ca21831e26645a21e99c.png)
您最近一年使用:0次
2022-03-05更新
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226次组卷
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6卷引用:复习题二4
21-22高二·湖南·课后作业
4 . 如图,正方体
的棱长等于
,
为正方形
的中心,
、
分别为棱
、
的中点.试判断下列结论是否成立,并说明理由.
;
(2)
;
(3)
;
(4)
为直角三角形;
(5)
的面积为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a0c3a4e61b97fa9bc58f3179fc2958.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/486e6c5f576d4539be7e29ca98bee66e.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0f98d683e9dc7c210890e4f7220e9c1.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a23e3ec9297b3722856590ad6c510a.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94e8acea56a9f17e6ef9bbce1633497f.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94e8acea56a9f17e6ef9bbce1633497f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
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