名校
解题方法
1 . 已知向量
,
,若
,则锐角
的值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac90aed4e57f0c8d6ee1c02696bcc7fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd439dba62f2bacdee64ebf2b3e51aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03481e6a73207be03fdbc1f8e9965b37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
您最近一年使用:0次
解题方法
2 . 已知向量
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba3c6bd21d9c27a68b970f446f04d6df.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d2807ecc81d36bee4048fa4d570895d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a8bd196d5fbea1c724f4fb6fe279d76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9764d6ada40b80c5ddc7bb870c649e83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba3c6bd21d9c27a68b970f446f04d6df.png)
您最近一年使用:0次
名校
解题方法
3 . 已知向量
,
,若
与
共线且反向,则实数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/750079fe7868fd50c1958bdc4972248d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92ba5e6df3bdc570aea6bcc93526affb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7a1df960feef63dec4790d63f52279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b8a88a16125366536cb4ad658e0cf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
A.4 | B.2 | C.![]() | D.![]() |
您最近一年使用:0次
2024-05-12更新
|
738次组卷
|
4卷引用:陕西省渭南市临渭区2024届高三下学期质量检测(三模)文科数学试题
名校
解题方法
4 . 若向量
与向量
是共线向量,则实数
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bf0c8e2310644e12811b549f73afcf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34a97e4d59095d79e6344d04b0f927b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.2 | B.![]() | C.![]() | D.0 |
您最近一年使用:0次
2024-05-10更新
|
808次组卷
|
2卷引用:四川省成都市第七中学2024届高三下学期三诊模拟考试理科数学试卷
名校
解题方法
5 . 已知向量
,
,则
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8cf79c6172116aea933f6f59b3ef65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19bfc0ef8928fbdc4e118458af73adba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36ad843be3ecb86d386b60f184256f6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
您最近一年使用:0次
2024-05-09更新
|
895次组卷
|
2卷引用:2024届贵州省贵阳市高三下学期适应性考试数学试题
2024·全国·模拟预测
解题方法
6 . 已知向量
.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c51d1100125065c9afb48bfb91bfbc80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02c7ec93f9844af104e8905fea59b668.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
您最近一年使用:0次
2024·全国·模拟预测
7 . 已知向量
,
,
,若
,
,则向量
在
方向上的投影为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d448794d6a1f2942195244ff38f4dcf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab592c767a22ea1cc7ef5d87c1f3e22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efb9349bed0149f2ff18c2739fa0741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7dced91de1b8c38aa95ffee0e5dc202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bd5b976df5a24e2f106dc0e46bf8652.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ade370d054284ca42a396aa1bfdabb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
A.![]() | B.![]() | C.![]() | D.2 |
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/324ae9aabe9b5d2800807da07b3d0268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc89084d428d76671f0ffd27d328ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/460e5ba67828c57daf2edb497fb52e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
A.![]() | B.3 | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
9 . 已知向量
,
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80d769ab21af5365d3c00dc617375ce4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e82e6a84171c2fd73f7c0dd184b0294.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec82bb7819c525d78685b376d7e31c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
A.![]() | B.1 | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
10 . 已知向量
,
,
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5463fb0b7d03747aa4d680620ca81be2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8917ef227f25706ea1630ee0beb7dcdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0865a486091d0e06cae73f39661d8212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b1440e5bae7d8cef6775a250874e307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-05-02更新
|
559次组卷
|
2卷引用:贵州省毕节市金沙县部分学校2024届高三下学期高考模拟(六)数学试题