名校
解题方法
1 . 已知在
中,点O是
的外心,若
,
,
,则
的面积为________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57dfc9d1109fe41145cc892b5702d9fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1d7ba7d6eaa2e319eb7eb0cf02d12e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70cb2283cfffd2ed1064c2cc52d38cda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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名校
解题方法
2 . 设
,
,
,且
,
,
,则向量
的模为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf21fef3026cfe445a855c94cab5c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d74b4e91e6351cca995de599fb26030.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1978e0d9efe8f47860b13ecc8704eb7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcad49be70d78e1e475d77c9d64d617.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf508c8d34aab12dae46e1d05fcd7f01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab4641129acd11b089f2c42e52e9e21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d066dbb65fab9a947b167173a788b5cd.png)
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名校
解题方法
3 . 在长方形
中,
,
,点P为长方形
内部的动点,且
,当
最小时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a355de94ba81f114771f8a48173911.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b768ea6a05cbf45b28fc46c501ba532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a355de94ba81f114771f8a48173911.png)
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2023高三·全国·专题练习
名校
解题方法
4 . 记△ABC的内角A,B,C的对边分别为a,b,c,且
,若向量
,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46973e8e20cc85b020337f26a69c488e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cc8c9d35fa5c5111cd33c08f8833be2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b1ed51f345a040f4a5ee9efe6dd00db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a4d070c5939bb0ec4a9d40d7e3c7d3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
您最近一年使用:0次
2023-05-24更新
|
870次组卷
|
4卷引用:浙江省舟山中学2022-2023学年高一下学期5月月考数学试题
浙江省舟山中学2022-2023学年高一下学期5月月考数学试题辽宁省重点高中沈阳市郊联体2022-2023学年高一下学期6月月考数学试题(已下线)第80练 计算提升训练20(已下线)第四章 三角函数与解三角形 第六节 第一课时 正弦定理与余弦定理(一)(B素养提升卷)
解题方法
5 . 已知
,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de46728110ad9c06ca019794a7841bf5.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1fc5baa1729d425d9921832ebd3d0ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65818e525a4a3778ede600403bf66869.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf21fef3026cfe445a855c94cab5c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de46728110ad9c06ca019794a7841bf5.png)
您最近一年使用:0次
名校
解题方法
6 . 已知在
中,
,
,其外接圆的圆心为O,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca902cd1857b0b95703521972a4214eb.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca902cd1857b0b95703521972a4214eb.png)
您最近一年使用:0次
7 . 已知平面向量
满足
,则向量
的夹角为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85fc6551581ac5c9fd6913c609764109.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
您最近一年使用:0次
名校
解题方法
8 . 已知
,则
与
的夹角为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10e363330c146ee591d03d5ff81a56f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cd8bbf47b69bbd7a6263b041290d11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bca35e52b8430246a1cf96e9e617cce.png)
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2023-03-16更新
|
819次组卷
|
2卷引用:云南省曲靖市会泽县实验高级中学校2022-2023学年高一下学期月考数学试题(四)
名校
9 . 已知
与
的夹角为
,若
,则k的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6e97f4385d56e83b37c9d7ab9d3004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8f49437b4c54a481a1c0be1fd78e477.png)
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2023-03-15更新
|
484次组卷
|
3卷引用:湖北省名校协作体2022-2023学年高一下学期3月联考数学试题
名校
解题方法
10 . 已知单位向量
,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11a310e71f78465dc51431270fba1997.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab9447fce9ea3cb300fdf5f520fd6f78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11a310e71f78465dc51431270fba1997.png)
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2023-02-16更新
|
1027次组卷
|
4卷引用:山东省鄄城县第一中学2022-2023学年高一下学期2月月考数学试题