已知向量
,
,
.
(1)求![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb74499b8965b3f6c9acfbbb168df438.png)
(2)当
时,若向量
与
垂直,求实数
和
的値;
(3)当
时,求证:向量
与向量
,
共面.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf2fc875c9778107e2fc361ac1b8f050.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cde8822d93742ab6c1d99fe1cedc022c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ae94b7015dc91cb90c27a364a5f86b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb74499b8965b3f6c9acfbbb168df438.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb0225cf1fe295e35eb923aa518c1623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40436543cc51f42b5b5d93e55a407ce4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c98a7f3a8bf384b1dfc1d34aebd46d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
22-23高二上·广东江门·期中 查看更多[4]
广东省江门市台山市华侨中学2022-2023学年高二上学期期中数学试题(已下线)6.2.2空间向量的坐标表示(1)(已下线)2.3.2 空间向量运算的坐标表示(同步练习)- 【素养提升—课时练】2022-2023学年高二数学湘教版选择性必修第二册检测(基础篇)(已下线)专题02 空间向量基本定理及其坐标表示压轴题(5类题型+过关检测)-【常考压轴题】2023-2024学年高二数学上学期压轴题攻略(人教A版2019选择性必修第一册)
更新时间:2022-12-29 10:14:01
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解答题-证明题
|
适中
(0.65)
解题方法
【推荐1】如图,在四棱锥
中,
为等边三角形,底面
是矩形,平面
平面
分别为线段
的中点,点
在线段
上(不包括端点).
,求证:点
四点共面;
(2)若
,是否存在点
,使得
与平面
所成角的正弦值为
,若存在,求出
,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e78042a384255038de485fd7bc0839.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78a3fd5284e160896f07ce367645fd04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1995c33caa487cf6d5410218590f129b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa364dffb98a94fb8285c2cdb9ad14b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c4e54e5f68aba2836820c09e3847cd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/512efef36576084492bf3b06131fbdcf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d58da37b3d1dbd2fee75089d5ba28134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e108d5c61e85e0741ec2c484fc5768.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8df877496fdae8f20414130174368.png)
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解答题-问答题
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适中
(0.65)
【推荐2】(1)写出A,B,C三点共线的一个充分条件;
(2)写出A,B,C,D四点共面的一个充分条件.
(2)写出A,B,C,D四点共面的一个充分条件.
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
【推荐1】已知空间三点
,
,
.
(1)若点
(异于点
)在直线
上,且
,求点
的坐标;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d28486859fd8d578aa5c484a0488a7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da7e8da9b46f1469b3d5219afbde1680.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9d70545f7cdaccdb9e076937278d952.png)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c3041cac1865affe1c2d1583b646fdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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适中
(0.65)
名校
【推荐2】已知空间三点
,
,
.
(1)求
的面积;
(2)若向量
,且
,求向量
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e8077ed88333e0a9f03ab92a91ba6c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60e859540e50445d2fd8a5732b4ce238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/350a7b3a3b62f81449127082d3c1e9f8.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0310a0f0ee41f5ee29e76cfe650060e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abc288d6341ed3bb82a5b5b3d237d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ed9c2e9fabbfc63733bae8fa079d00.png)
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解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】在正四棱柱
中,
,E在线段
上.
![](https://img.xkw.com/dksih/QBM/2022/1/13/2893437264601088/2894335840870400/STEM/97e8ef2f-1feb-4467-a698-f6240b6c8614.png?resizew=169)
(1)若
平面
,求
的长;
(2)在(1)的条件下,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/622a61b260c96966e2527e346f4288ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/2022/1/13/2893437264601088/2894335840870400/STEM/97e8ef2f-1feb-4467-a698-f6240b6c8614.png?resizew=169)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d26d8a9d64ad3c8cba28840b41ed7837.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
(2)在(1)的条件下,求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15dc61d5de97b5a40be925b278ae494c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
【推荐2】已知向量
,
,点
,
.
(1)求
的值;
(2)在直线
上存在一点E,使得
,求点E的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fa819534eb0421c821c85010768acd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc648a305731a9911450677c9c14de6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03552446d1dd0b34ce3cad0f1303423.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e80a9175f0bf5c38853e9af5865e5c7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305c66b009a9d156dfb2660ba239e737.png)
(2)在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9703b7ec9840ddec5449aa68e5cfecf5.png)
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