名校
解题方法
1 . 已知向量
,
,且
与
的夹角为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77f310de0d0eb960c113c09173eef132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6f99645c5aa5800b219c4d9f0baebcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e64c7d38ccc3b18052c3ad46daf6f133.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c69552ea735e33d4af543f1c8b43db1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
2 . 两个单位向量
与
满足
,则向量
与
的夹角为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d257f49dd753f391cab3f0322de8307e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea3de0055300265e14d85bbaf35d23b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
3 . 已知在
中,点
在线段
上,且
,延长
到
使
.设
,
.
、
表示向量
、
;
(2)若向量
,
,
、
夹角为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0c3b902ae24074cd49ffe4c6f5590c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e68c1d3694923f6043834f436049edd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8eb792421232db18dc02415163ffe30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/420ad6159fc091d6a5ffddf0676d2662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68c2e7e9fd8519fd1c293cc577408263.png)
![](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/ef8337706c550bc095d7a2bd872221a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c085dbb9d78aef7d81c3f4d6855f067b.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/994f5f1b332ac502f8da36d0a2edb83c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c7d3b256fec1c30b6dd2a7b8e202f7.png)
![](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/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eab08e7f6ab75a28125b96cdb45fea4e.png)
您最近一年使用:0次
名校
解题方法
4 . 已知单位向量
,
满足
,则
与
的夹角为__________ .
![](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/18d2e204d110ff632f25c6fb50d3fee1.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
2024-04-17更新
|
583次组卷
|
2卷引用:广东省惠州市华罗庚中学2023-2024学年高二下学期3月月考数学试题
名校
解题方法
5 . 已知向量
,且
,则向量
与
的夹角为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfc7ff6c165baca3323b77d2ec454585.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
2024-04-15更新
|
904次组卷
|
3卷引用:辽宁省沈阳市东北育才学校双语校区2023-2024学年高二下学期4月自主测评数学试题
名校
解题方法
6 . 已知
,
.
(1)若
,求
与
的夹角;
(2)若
与
的夹角为
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a1fbde1de351bce74ea7736f16340a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c734983e908fc8671cbf554aafe73aa.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e26536a0ce0954feca62f661dbf2664.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
(2)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/82cee75366046d8b13d19f2e0ed7fccf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4336e15cd9b12893426bbf7bba3a2353.png)
您最近一年使用:0次
2024-04-07更新
|
672次组卷
|
3卷引用:湖南省岳阳市岳阳县第一中学2023-2024学年高二下学期开学数学试题
名校
7 . 已知向量
,
满足
,
,向量
在向量
上的投影向量为
,则
( )
![](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/70e310702748855c3edccd151aae0143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34fa8ea29001bb1f0c1e5157aff2fca5.png)
![](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/1b45d24553c5ebdcbce51e4623aa0d46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd01707e8d32f277b83c007a5b15bd7.png)
A.1 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
8 . 如图,设
是平面内相交成
角的两条数轴,
分别是与x轴,y轴正方向同向的单位向量.若向量
,则把有序数对
叫做向量
在坐标系
中的坐标.若在坐标系
中,
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46c092d69df76faf1e2133dc96b466ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c0927afc571a7c966c98192040979e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad59ee7969f2a082ed53bdf0aaa748ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdc1d6f40aef2a362638722a08aebd86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d9aa1d34d66a6876aa0566c8fc8b0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91174b2336306191ba275a87864172b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c6cf054248dd35f9a25d786ee036f4.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() ![]() |
您最近一年使用:0次
2024-03-25更新
|
404次组卷
|
4卷引用:陕西省西安市西安交大附中2023-2024学年高二下学期第一次月考数学试题
陕西省西安市西安交大附中2023-2024学年高二下学期第一次月考数学试题陕西省西安市西安交大附中2023-2024学年高一下学期第一次月考数学试题吉林省长春市十一高中2023-2024学年高一下学期4月月考数学试题(已下线)第二章平面向量及其应用章末综合检测卷(新题型)-【帮课堂】(北师大版2019必修第二册)
名校
9 . 已知
是夹角为
的单位向量,且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10814bc3db929e79874befe96cf4e3d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0211da37e92f915e781691296578ba0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aa2b71a59888fd1d2b9d3750c878f0d.png)
A.![]() | B.![]() | C.![]() ![]() ![]() | D.![]() ![]() ![]() |
您最近一年使用:0次
2024-03-06更新
|
2019次组卷
|
4卷引用:辽宁省名校联盟2023-2024学年高二下学期3月联合考试数学试卷
10 . 如图,在直三棱柱
中,
,
,则向量
与
的夹角是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f99135167175760935148047d6170c7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4979f0d8ed02ce99f440b6ff4f3216e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d021a5c98388463d577675e58068aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a38dfb3f3d83fa111eb89009789e88b1.png)
A.30° | B.45° |
C.60° | D.90° |
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