1 . 已知空间向量
.
(1)若
,求实数
与
的值;
(2)若
,且
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7cbd199230f153bfe138edd14735684.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe3159fede573644c8cf10c763fd82e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0404f82aa062c72a4f6fcbfe9f4db167.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cba22ec376fbe8aa2f079a1c6daa790.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cfe95f520c7b454ceabb2ae9af0a87.png)
您最近一年使用:0次
名校
解题方法
2 . 3.已知向量
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3de08bc776f3401187163c2901387fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b958a367fa2f08b6202a5a6ebf5e9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
A.![]() | B.![]() | C.2 | D.-2 |
您最近一年使用:0次
2024-01-21更新
|
1017次组卷
|
3卷引用:陕西省汉中市2024届高三上学期第四次校际联考数学(文)试题
解题方法
3 . 已知平面内的三个向量
.
(1)若
,求
的值;
(2)若向量
与向量
共线,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/700615fa14c2e8260d3dd66a9a91ce51.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f5b77f14e1bca828c923e414455ef97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8d5d06c8ba359e2f95bd6abbeb9d696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d5fa4100a6b6e8e2c3605c97e6ee78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2023-07-13更新
|
251次组卷
|
3卷引用:陕西省安康市2022-2023学年高一下学期期末数学试题
陕西省安康市2022-2023学年高一下学期期末数学试题黑龙江省林甸县第一中学2022-2023学年高一下学期期中教学质量检测数学试题(已下线)6.3.4平面向量数乘运算的坐标表示(分层作业)-【上好课】
22-23高二下·陕西榆林·期末
解题方法
4 . 已知向量
,若
与
共线,则实数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46d0e701d50c8fb73ef9e9eddd5fde77.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/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.3 | D.1 |
您最近一年使用:0次
5 . 已知向量
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cf2dfb77322c9b7f07606465483a30e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbfd67b72143824efa7704759a744449.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd79264e130de60a100b001b5d45585c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
您最近一年使用:0次
2023-07-11更新
|
184次组卷
|
3卷引用:陕西省汉中市2022-2023学年高二下学期期末文科数学试题
解题方法
6 . 已知向量
,
.若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40c3bef47eca74c23c275cc0ea1839b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecc1d243ebba80d6d3a50fb679bb1930.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd79264e130de60a100b001b5d45585c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
A.![]() | B.1 | C.![]() | D.4 |
您最近一年使用:0次
2023-07-10更新
|
103次组卷
|
2卷引用:陕西省宝鸡教育联盟2022-2023学年高二下学期期末理科数学试题
解题方法
7 . 已知向量
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3627dacaaebeba2f37e841d1f15178b7.png)
(1)若
,求
;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be48a471ace193d22230054b6b5ed851.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3627dacaaebeba2f37e841d1f15178b7.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef00713e73b8357cc7900144f5505bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/854e16eb319ee454088f5b527cf6c4d5.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd79264e130de60a100b001b5d45585c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
解题方法
8 . 已知向量
,
的夹角为
,且
,
.
(1)若
,求
的值;
(2)若
,求
的值.
![](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/a6c0927afc571a7c966c98192040979e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0763e5405994d6aa68d5d0a20e305239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06f7320a382e817a47544bae72a2817c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b958a367fa2f08b6202a5a6ebf5e9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7f18d22282eeca0763129bf7da17f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
解题方法
9 . 已知向量
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/290e7b3b4d69323846623e426303e4e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1992809c985b5049856280b5be867a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-07-01更新
|
399次组卷
|
3卷引用:陕西省西安市西咸新区2022-2023学年高二下学期期末文科数学试题
解题方法
10 . 已知向量
与
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f4dcf415977dea53f52a85b6b82136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec3d726a355eb83fa743b513f833f991.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd79264e130de60a100b001b5d45585c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
您最近一年使用:0次