1 . 设向量
,则
与
的夹角等于__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02ef138c53299c21be77ab5a1a0063a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
您最近一年使用:0次
2023-02-15更新
|
471次组卷
|
2卷引用:安徽省芜湖市北城实验学校2022-2023学年高二上学期第一次月考数学试题
名校
解题方法
2 . 已知向量
,
,则向量
在向量
上的投影为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff0812ea92afd60233426521798f5ca7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b8583acf0b89997429dbbaa837c3fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a56a9a0c5b441cfa2d902c1418df8f37.png)
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2020-08-16更新
|
281次组卷
|
3卷引用:安徽省亳州市第二中学2021-2022学年高二上学期第一次月考数学试题
3 . 已知
,
,点
为坐标平面内的动点,满足
,则动点P的轨迹方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd1ee159a6e9eecdf2342466c7f0f585.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e2bbcb3198e9ef0f93e0ca41e6aaf4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/379051d5400af1d76194365a687c98f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b31a90df1bf1cf687688b15ea922d7.png)
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2020-06-05更新
|
182次组卷
|
2卷引用:安徽省合肥市肥东县第二中学2019-2020学年高二(共建班)下学期期中数学(文)试题
名校
解题方法
4 . 设
,向量
,
,
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ef55542504e8d147448cbfb6eaad7a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcbca3478eae63853d2aab5332e2e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e041dbcd07a7e1ed1bf521229528101.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29ded15ca21d8bee92275f9fde466e3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59ffc44cd5245556fa331200c1e4fef4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7dced91de1b8c38aa95ffee0e5dc202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b23cc1e2140104001dd399ace17e9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ef55542504e8d147448cbfb6eaad7a.png)
您最近一年使用:0次
5 . 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
6 . 已知向量
,单位向量
满足
,则向量
的坐标为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f7499f17db9a934c330ef17ed5fa968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5485d9a62aa618eb8d2ffe09e3904eac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
您最近一年使用:0次