名校
解题方法
1 . 已知
是单位向量,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d6d343208f0f5e3aab71004c245dabe.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ccba3b87a8a48ac3dd5f72d00bdb1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5759a91508e6600522558561d6b67dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d6d343208f0f5e3aab71004c245dabe.png)
您最近一年使用:0次
2022-02-28更新
|
1250次组卷
|
4卷引用:湖北省黄石市有色第一中学2022届高三下学期5月适应性考试数学试题
名校
解题方法
2 .
为单位向量,
,若
且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7787902056794fd718bfeec12825522b.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bad11c6e4e26c73bfceede5477f11462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa5aa846a5b7c96fe2ce665eb1ea5f0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/415e37e388dcb208d21d2b99f15b3ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7787902056794fd718bfeec12825522b.png)
您最近一年使用:0次
2020-10-24更新
|
136次组卷
|
6卷引用:湖北省黄石市大冶市第一中学2019-2020学年高三文科复读班12月月考数学试题
解题方法
3 . 已知正方形
的边长为2,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f0b54fd6b28ac1cfa7052ba76c1dc.png)
______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f0b54fd6b28ac1cfa7052ba76c1dc.png)
您最近一年使用:0次
2018-01-02更新
|
501次组卷
|
2卷引用:湖北省黄石市2018年高三五月适应性考试数学文试卷
名校
4 . 已知
是
外接圆的圆心,若
且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
_______ .(
的角
所对边分别为
,外接圆半径为
,有
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc8c65bea2c80af038768b74250c694e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fe354155ddb9172a37d4c75842f48a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54c5f5c786e00e716284fc96fe89049.png)
您最近一年使用:0次
2017-10-19更新
|
4420次组卷
|
3卷引用:湖北省黄石市第三中学2018届高三阶段性检测数学(文)试题