名校
解题方法
1 . 已知
均为单位向量,且
,则向量
与
夹角的余弦值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/116e2e7116a7b5cd0a912ec0699ca017.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a307a2728198fbe409763346880a882.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
您最近一年使用:0次
名校
2 . 在四边形
中,
,
,则该四边形的面积为________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92f890dbbc435de06c7804d9326b9357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/422e89842c80275fef4dea20bfff7ab0.png)
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2021-08-30更新
|
304次组卷
|
6卷引用:2020届江苏省淮安市涟水中学高三上学期期中数学(理)试题
2020届江苏省淮安市涟水中学高三上学期期中数学(理)试题2016届湖南师大附中高三上学期月考四理科数学试卷12016届湖南师大附中高三上学期月考四理科数学试卷2(已下线)上海市华东师范大学第二附属中学2016-2017学年高二上学期第一次月考数学试题2安徽省合肥市第八中学2020-2021学年高一下学期期中数学试题江苏省宿迁市泗阳县实验高级中学2022-2023学年高三文化班上学期第一次质量调研数学试题
名校
3 . 已知平面向量
,
,
,满足
,
,
,
,若
,则
所有取不到的值的集合为______ .
![](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/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89d5b0d278a7457a0c548278c60ab695.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/644797e7a8cfbcf7637c7b1b3c94dbea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/723cdb2f959fe747dc5145c761fb9725.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/540ccd15435aa2d59e809d6a28fb2467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/960f1f384a2f2c010bd57b4c4e6e2233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da2c13f8761c08e74fc7a99a54b06f2.png)
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4 . 已知平面向量
满足
,且
,则
的最大值是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96022a881e03e32d3483d997c3f170c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa5aa846a5b7c96fe2ce665eb1ea5f0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a417e93c7bb474c78c7dce9f7061c09c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0644f878816d0633bc195b72a4867d1.png)
您最近一年使用:0次
名校
解题方法
5 . 已知圆
,圆
,定点
,动点
,
分别在圆
和圆
上,满足
,则线段
的取值范围_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9edf67c2e68042e26faefd72455386c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a3ef6da64080039ca5541c7d6b23d49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c9dcfd9f4c5298035870cb88a34169.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db9fd618a94a5fab5521d10166c302bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/2020/4/13/2440491633590272/2440573049126912/STEM/d131921b1fb643b199ca72d209d14777.png?resizew=230)
您最近一年使用:0次
2020-04-13更新
|
687次组卷
|
5卷引用:江苏省苏州新草桥中学2019-2020学年高一下学期期中数学试题
江苏省苏州新草桥中学2019-2020学年高一下学期期中数学试题江苏省南通市启东中学2019-2020学年高一(普通班)下学期期初考试数学试题江苏省南通市启东中学2019-2020学年高一(创新班)下学期期初考试数学试题(已下线)2.1 圆的方程-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册)浙江省杭州市2022-2023学年高三上学期期末模拟数学试题
解题方法
6 . 在
中,点
为重心,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11767298468f33c6ab76a3ca30ff17df.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11767298468f33c6ab76a3ca30ff17df.png)
您最近一年使用:0次
7 . 已知向量
,若
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c5cdb42fa3d16eb870896b2cb50b2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd48b07a618ad874d0056de5df5a5033.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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2020-03-16更新
|
141次组卷
|
3卷引用:2020届福建省长汀、连城一中等六校联考高三上学期期中数学(理)试题
名校
解题方法
8 . 若
是正六边形
的中心,
,且
互不相同,要使得
,则有序向量组
的个数为 ____________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0bd58152e714896a2ca1edeb0f6b53c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cba8bab39b23c39e416d6abef6c29497.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae951e0bb5a2a406f1572fc1e4964265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65338b232a8dc2b410fe03d03a31b069.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6e03bf7f21e8c05f9f15a70c2853bf.png)
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2020-02-29更新
|
566次组卷
|
4卷引用:2020届上海市闵行区高考一模(期末)数学试题
名校
解题方法
9 . 已知
,
,
,则向量
与
的夹角为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89d5b0d278a7457a0c548278c60ab695.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/644797e7a8cfbcf7637c7b1b3c94dbea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c6e66d59253fbad812ac4ba5ae3d8b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
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2020-09-14更新
|
407次组卷
|
4卷引用:【全国市级联考】河南省焦作市2017-2018学年高二下学期期中考试理科数学试题