1 . 已知
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e56d8de9db8a2dabaf5849f15b115ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4060a7f013dd94e340f002d69f53c5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3fd926c7115cfdfae6815137b0247ee.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
2 . 已知向量
,
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff0812ea92afd60233426521798f5ca7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dbb470a456fb79ab9fb13907a8d2e74.png)
A.与向量![]() ![]() |
B.![]() |
C.向量![]() ![]() ![]() |
D.![]() |
您最近一年使用:0次
2023-08-02更新
|
537次组卷
|
4卷引用:辽宁省重点高中沈阳市郊联体2022-2023学年高一下学期期末数学考试试题
3 . 已知
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fadc9a19de13ca7688ca93f0c70a8a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1e5eea5f7f98ca8632358b7e49ceb25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82f12f12b6e78f741846da2d56089631.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() ![]() |
您最近一年使用:0次
解题方法
4 . 已知向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9fb569958da86f3548e3b42bfd31bd7.png)
(1)若
,求
;
(2)若
与
的夹角为锐角,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9fb569958da86f3548e3b42bfd31bd7.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383984a28388825c3e0d6b98decacc98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7d8b42c85013ba07ba18e5e46d8716.png)
(2)若
![](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/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
5 . 在平面直角坐标系中,已知
,
.
(1)若
,求实数
的值;
(2)若
,
,求
与
的数量积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfc4e2320c85265180570f50124eafe4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b395c26a966dcf23d4324ed43c1b914e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2900a75f73658e868df72fce281ccc68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bca3c59963ade27a80a1ed4083abd689.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/668fd97cd9984552ce2ad8ce56aefa85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b0c233484ce028819ebd0c86b75a92b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74e5d6e01881518f36eb475c866e3c03.png)
您最近一年使用:0次
2023-07-21更新
|
502次组卷
|
4卷引用:辽宁省鞍山市台安县高级中学2022-2023学年高一下学期期末数学试题
6 . 已知点
,
,向量
绕原点逆时针旋转
后等于
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1294434b22cb5133043a2270ae1c43f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0baca988e757625c577e02752422a72d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f605ec0729ce6d72237ad662a06862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef8337706c550bc095d7a2bd872221a1.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
解题方法
7 . 已知
,
.
(1)若
与
垂直,求实数k的值;
(2)若
为
与
的夹角,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8cf79c6172116aea933f6f59b3ef65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc7134c064a282250dacb4863ba82d1a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62b625b8d3178dd0ea451a80a63082c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3143307ad0ba4a631eac04e814993655.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/064b1617d3b9957785246a5683f5b657.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed492f7b29166ba5c1f0023b05a439c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aefd06c239145a2b6ae87a955aa51414.png)
您最近一年使用:0次
解题方法
8 . 已知向量
,
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d84bd619f845c0b3358d7112a5ba648.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d88a1983547e8f6d13e5f7f1cb521dec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83252d79e33ef90573ed4148c9b7754d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a36228810d0c2f6c6e53584c1ac176b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
您最近一年使用:0次
2023-07-14更新
|
170次组卷
|
2卷引用:辽宁省朝阳市2022-2023学年高二下学期期末数学试题
解题方法
9 . 已知向量
,
,函数
,
.
(1)求函数
的最小正周期、值域;
(2)对任意实数
,
,定义
,设
,
,a为大于0的常数,若对于任意
,总存在
,使得
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82ca8a13f3ced93724dde11e3fb32757.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/654cabd916a5bb4bfc0d4484e44be181.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f31953ed87a666e98898a6ced457f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)对任意实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a11d783450ca4d31bebaa9c6491dd2c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14d9e7468cb3635215ea5068c51cb37d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94f9d255ca420fa2486b11fcb7763b44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33890c6b0bf167514d44139d9dca0154.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f3bb43da17137e6c50874a8086df278.png)
您最近一年使用:0次
解题方法
10 . 已知复数
,
(i为虚数单位)在复平面上对应的点分别为
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33330baebf722c57c4eac37a671170b6.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39b1df6ec5e2a103d8c1b9bf7557e48a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd2a134a82aac77468b9517676fa71f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bb8477bcc87b1401970171bf57b9ecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c1fd680a5d355178273c6d6025eb80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33330baebf722c57c4eac37a671170b6.png)
您最近一年使用:0次