1 . 已知
是三个不同的非零向量,若
且
,则称
是
关于
的对称向量.已知向量
,则
关于
的对称向量为___________ .(填坐标形式)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96022a881e03e32d3483d997c3f170c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99d80d9267a9c9c4ca3aa0ea75ae5cdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45432b44678349c633fee1082005d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb573cc0f30d5c32cdad1510793f0e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f492ae618557320a50e94fd55ac3b813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
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2 . 已知向量
,
满足
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d8da7ecf18eece296c2e9dbb0f2443.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/1ff4a36d032d313317cb2dfc51dfdcf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13bc8a2438aba7a8082529f43df5b15b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d8da7ecf18eece296c2e9dbb0f2443.png)
您最近一年使用:0次
2021-09-01更新
|
380次组卷
|
4卷引用:安徽省六校教育研究会2021-2022学年高三上学期第一次素质测试理科数学试题
3 . 已知
,
,
,则
,
的夹角是__________ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fd4e1bd48df92de1b3b2f40af3187fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f0dcbd9bee7f525791d36d8fc8268cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd1d22589d0c894b0aef6f83de32abbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
您最近一年使用:0次
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4 . 已知
,
,
,
,当
最小时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e06c345652270f5a5b6d60eb6664ca59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57d91583c6ed2bfec3f903daae87a2ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ff5d2f05e835048bb2d993e1f11818a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c51159984b2cb00f30b3986315019623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62bbe29e8384de5beee0590d599070c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
您最近一年使用:0次
2018-09-13更新
|
578次组卷
|
6卷引用:安徽省宣城市2022届高三上学期开学模拟数学(理)试题(一)
安徽省宣城市2022届高三上学期开学模拟数学(理)试题(一)【全国市级联考】安徽省合肥市2018届高三三模数学(理)试题安徽省合肥市第九中学2021-2022学年高三上学期第一次阶段测验理科数学试题福建省罗源市第一中学2018届高三5月校考数学(理)试题(已下线)2019年一轮复习讲练测 5.2 平面向量的基本定理及坐标表示【浙江版】【测】(已下线)7.1 平面向量的线性运算、基本定理和坐标运算