1 . 已知单位向量
的夹角为
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b68b79bbab9313d5223751e81b53d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92095f3b8b3ca41b60fc2473f6ec7f35.png)
A.![]() | B.6 | C.2 | D.4 |
您最近一年使用:0次
2 . 已知平面上的三点A,B,C满足
,
,向量
与
的夹角为
,且
,则实数
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae5a64bcb77f5f64e4af6930c249a270.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f28d6011934956775d9eae744423fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89265cbe3abc6b966ce8967fead448b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc76db19d7f99ab170e5ecf92cae0a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
A.0 | B.1 | C.-2 | D.2 |
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解题方法
3 . 已知非零向量
,
满足
,
,若
,则实数
的值为( )
![](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/43498074ba57261c0cf8b7125c0853a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfceb3692b2fcc0cf38d4a34bd5fd07c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2fee99d095e8602688e8f4dc300a236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.4 | B.-4 | C.![]() | D.![]() |
您最近一年使用:0次
2023高一·全国·专题练习
名校
解题方法
4 . 已知
.
(1)若
∥
,求
;
(2)若
,求
;
(3)若
,
夹角为60°,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4275b31aabc31f7a06cd5bc9dc06c4c6.png)
(1)若
![](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/854e16eb319ee454088f5b527cf6c4d5.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf21fef3026cfe445a855c94cab5c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/854e16eb319ee454088f5b527cf6c4d5.png)
(3)若
![](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/854e16eb319ee454088f5b527cf6c4d5.png)
您最近一年使用:0次
名校
解题方法
5 . 下列说法中正确的是( )
A.若![]() ![]() ![]() |
B.若![]() ![]() ![]() |
C.已知点![]() ![]() ![]() ![]() |
D.已知向量![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-06-11更新
|
667次组卷
|
4卷引用:江苏省镇江市扬中市第二高级中学2022-2023学年高一下学期期末模拟数学试题
江苏省镇江市扬中市第二高级中学2022-2023学年高一下学期期末模拟数学试题(已下线)模块五 专题2 期末全真能力模拟2江苏省无锡市锡东高级中学2022-2023学年高一下学期5月月考数学试题(已下线)模块二 专题1 平面向量相关概念的易混易错问题(苏教版)
解题方法
6 . 当
时,向量
与
的位置关系是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7162da97121bbd05741d261e8a8fb47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
您最近一年使用:0次
解题方法
7 . 已知向量
与
的夹角为
,且
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8c7f2f9d5d6b30a3b87a915b3725b10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c39d1d88189726ae99c309644fca3494.png)
A.1 | B.![]() | C.2 | D.![]() |
您最近一年使用:0次
解题方法
8 . 已知
,在下列条件下求![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c39d1d88189726ae99c309644fca3494.png)
(1)向量
与
平行时;
(2)向量
与
的夹角为
﹔
(3)向量
与
垂直时.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae04c88e123d9aae0a9f949f6042783d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c39d1d88189726ae99c309644fca3494.png)
(1)向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
(2)向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d387d228f512ada68fc79c9d5775b077.png)
(3)向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
您最近一年使用:0次
2023-06-07更新
|
404次组卷
|
3卷引用:人教B版(2019) 必修第三册 北京名校同步练习册 第八章 向量的数量积与三角恒等变换 8.1 向量的数量积 8.1.1 向量数量积的概念
人教B版(2019) 必修第三册 北京名校同步练习册 第八章 向量的数量积与三角恒等变换 8.1 向量的数量积 8.1.1 向量数量积的概念(已下线)6.2.4向量的数量积【第一练】“上好三节课,做好三套题“高中数学素养晋级之路甘肃省武威市凉州区2023-2024学年高一下学期期中质量检测数学试卷
9 . 在
中,三边
,
,
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e0c5cb53fd85b7a23f0580df6bb49a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7788830ed1cb3b9c5988f70f43595f2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ed86beeec5a7e4201187c8d7681fc6.png)
A.19 | B.![]() | C.![]() | D.![]() |
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名校
解题方法
10 . 如图,已知
的半径为2,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/669e8dfb2b45e6f74d86408343a18fe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42083f00cd68320e4e0275400c139551.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7590a22611f3935d8e32eac956c2a4c1.png)
A.1 | B.-2 | C.2 | D.![]() |
您最近一年使用:0次