1 . 已知向量
,
,且
.
(1)求函数
的解析式;
(2)当
,
的最大值是
,求此时函数
的最小值,并求出相应的
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/140c850132b2ecb8bbc97507591a5fd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac0f9eac7dfc434a68820ef361c0fcc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7aa1233d7a93113281594c41f25c7db.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa951a727b38bb328957cbe4813e171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
名校
解题方法
2 . 已知
,
,
与
的夹角为
.
(1)求
;
(2)若向量
与
相互垂直,求实数k的值.
![](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/be6a6301878fed2a01413020b27310a5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fb6118172f384a565afcdfd84e9cdb0.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb625f59a559289e657a8a362b5213df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee1efe35185b76bab2f34f57ee499cea.png)
您最近一年使用:0次
2024-04-05更新
|
689次组卷
|
7卷引用:青海省西宁市第十四中学2023-2024学年高一下学期期中考试数学试卷
名校
解题方法
3 . 已知向量
,
满足
,且
.
(1)求向量
,
的夹角;
(2)求
.
![](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/93941bed16180b784886058ad2dd43dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa5275170d0cdb6f28e61371171d74c.png)
(1)求向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d2840834a09f5c5da5381d9e4b6f434.png)
您最近一年使用:0次
2024-04-02更新
|
1260次组卷
|
7卷引用:青海省西宁市第五中学2023-2024学年高一下学期4月月考数学试题
青海省西宁市第五中学2023-2024学年高一下学期4月月考数学试题广西百所名校2023-2024学年高一下学期开学考试数学试题甘肃省兰州第一中学2023-2024学年高一下学期3月月考数学试题新疆乌鲁木齐市第十一中学2023-2024学年高一下学期3月月考数学试卷江苏省扬州市新华中学2023-2024学年高一下学期4月期中考试数学试题(已下线)模块一 专题4 平面向量的数量积 B提升卷(人教B版)(已下线)模块一 专题5 平面向量的数量积 B提升卷(北师大版高一期中)
解题方法
4 . 如图,在正方形
中,E,F分别是边
的中点.
(1)判断线段
与
的位置关系,并用向量的方法证明.
(2)求
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374fe9986ebbc986fc422e514ab93a51.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/7/a1e37d35-9e98-4a14-b581-1375658e827a.png?resizew=130)
(1)判断线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7db0641078052bf1af17b4c5a01b9ccc.png)
您最近一年使用:0次
解题方法
5 . 化简:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da2e41df369df2d7c4343119a7cda83.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fd9ccde2d4706111077852204910d16.png)
您最近一年使用:0次
名校
6 . 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
|
523次组卷
|
4卷引用:青海省西宁市大通回族土族自治县2022-2023学年高一下学期期末联考数学试题
解题方法
7 . 已知O是坐标原点,向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1e66fc2dfcef35c0d6cd2b151a0b33c.png)
(1)若
,求
的值,
(2)当
取得最小值时,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1e66fc2dfcef35c0d6cd2b151a0b33c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66790293bccf6d4410e38dbcfe41f770.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59880e470359d8e9faf6ae5ce155cf2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd79ea6078a73c1e7ec4769e5546abec.png)
您最近一年使用:0次
2023-06-20更新
|
134次组卷
|
2卷引用:青海省海东市第一中学2023-2024学年高一下学期第一次月考数学试题
名校
8 . 已知向量
.
(1)若
,求λ的值;
(2)若
,且
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0766f4c253192de5eaa92c35a0bb713e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b958a367fa2f08b6202a5a6ebf5e9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfaf5a89fd40c2e9cd7c91fdf5b741bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3be362dec96173f246ff747264007817.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17bc248c846fa16ec9e2cd52b45c9c03.png)
您最近一年使用:0次
2023-06-11更新
|
590次组卷
|
7卷引用:青海省海东市2022-2023学年高一下学期6月联考数学试题
名校
9 . 已知向量
,
.
(1)若
,求
的值;
(2)若
,向量
与
的夹角为锐角,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ac60aa2840e92be1b207555cad9539.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86e0aa462b451ea87eadedd3f727c2a0.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efd408e40cbe7787cc0db1e7df60ab66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2c248b809099c7daaae3a5f8824522e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cd8bbf47b69bbd7a6263b041290d11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
您最近一年使用:0次
2023-05-20更新
|
206次组卷
|
2卷引用:青海省海东市第二中学2023-2024学年高二上学期入学考试数学试题
名校
解题方法
10 . 已知向量
,
,若
,
,
与
的夹角为
.
(1)求
;
(2)当
为何值时,向量
与向量
互相垂直?
![](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/c7958a6bddd1d578bbd6fbcb92e3f6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2396cac4b185cf1f1a67dad9248481c.png)
![](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/be6a6301878fed2a01413020b27310a5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de0212ab68627919b1d22ac348a3e849.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eadb52537a6679873489525e2f404b64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd9534eb6ae67a9a2ef6ba5eaf9cfcd7.png)
您最近一年使用:0次
2023-05-11更新
|
690次组卷
|
8卷引用:青海省海东市第一中学2023-2024学年高一下学期第一次月考数学试题