1 . 直线
与圆
相交于
两点,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c93c4093f63750592ad63dd781c9f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9ab11ba6b230c4309e1b899eb58daae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c843a39ef0c8ade275385aae889eb99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
您最近一年使用:0次
2018-02-07更新
|
895次组卷
|
4卷引用:2020届湖北省宜昌市第二中学高三上学期10月月考数学(文)试题
解题方法
2 . 已知向量
的夹角为
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7787902056794fd718bfeec12825522b.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ccba3b87a8a48ac3dd5f72d00bdb1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9936a46cc891744d4600f76bb92b694c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7400e5788132a67c836f2f54f7738172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7787902056794fd718bfeec12825522b.png)
您最近一年使用:0次
名校
3 . 设向量
,
,且
,
的夹角为
,则实数
=__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97fcbada987fd8b134003ff3b994b0f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff7fb1ca800bfa38e4d309970c9cae36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a92e6eba8dab638fd66831cd3a0b6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427fa45527d0ce469bfd060bf6f991f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
4 . 已知
的外接圆圆心为
,且
,若
,则
的最大值为________________ .
![](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/43a6f36741b86f464be362b12bac13d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abdbe1424106ff8e2b125a29b022adc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc4c63a548b91061528aa11058de75.png)
您最近一年使用:0次
2017-04-17更新
|
1348次组卷
|
4卷引用:湖北省武汉市2017届高三毕业生四月调研测试数学(理)试题
名校
5 . 平面向量
不共线,且两两所成的角相等,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6498305271f9cb02be451243d8f1bc9c.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98e7f816359c79043a915f7ac185d07c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49ac28b5fd813516c3c942903b483150.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6498305271f9cb02be451243d8f1bc9c.png)
您最近一年使用:0次
2017-03-13更新
|
364次组卷
|
2卷引用:2017届湖北省七市(州)高三第一次联合调考(3月联考)数学(理)试卷
解题方法
6 . 如图,
是边长为
的正三角形,
是以
为圆心,半径为1的圆上任意一点,则
的取值范围是_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6983a471f24a61ef9ba49b814bf994c.png)
![](https://img.xkw.com/dksih/QBM/2016/10/19/1573080263262208/1573080269504512/STEM/d7dd8ea13a7b415a8f3d15e79653d0ab.png?resizew=265)
您最近一年使用:0次
2016-12-04更新
|
1028次组卷
|
5卷引用:2017届湖北黄冈中学高三上学期周末测试9.10数学试卷
2017届湖北黄冈中学高三上学期周末测试9.10数学试卷2017届河北冀州中学高三复习班上段考二数学(理)试卷(已下线)7.2 平面向量的数量积江苏省南京师范大学苏州实验学校2020-2021学年高一下学期3月学情调查(一)数学试题(已下线)6.2.4 向量的数量积 (精讲)(2)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)
7 . 已知向量
,
满足
,
,两向量的夹角为60°,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338189ec20d1ec7fdbbc189d209428dd.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/d8ae0d7b3266f32b6a916b6237b6b838.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b113dc271cf51b3018bd1de14edf73ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338189ec20d1ec7fdbbc189d209428dd.png)
您最近一年使用:0次
2016-12-04更新
|
598次组卷
|
3卷引用:湖北省武汉市49中等部分重点中学2019-2020学年高三10月月考数学试题
解题方法
8 . 正
中,
在
方向上的投影为
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4618e75fd728301239160a2c18273816.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d792a2aa25763e14cc2863be3887000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e8488ec91652ad560475f6d45c8e20b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4618e75fd728301239160a2c18273816.png)
您最近一年使用:0次
2016-12-04更新
|
720次组卷
|
3卷引用:【市级联考】湖北省黄冈市2019届高三上学期元月调研理科数学试题
9 . 边长为
的正方形
中,
分别是线段
上的点,则
的最大值是___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b3c032441543354c154ee67d744abb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d16d0d7e1ea5ec5a288a11daee09b3a6.png)
您最近一年使用:0次
13-14高一下·四川绵阳·阶段练习
名校
解题方法
10 . 在边长为2的正
中,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d4995ec65d0748dfeedc9068e0a5f2c.png)
_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d4995ec65d0748dfeedc9068e0a5f2c.png)
您最近一年使用:0次
2016-12-03更新
|
517次组卷
|
4卷引用:2015届湖北省黄冈中学等八校高三12月第一次联考文科数学试卷
2015届湖北省黄冈中学等八校高三12月第一次联考文科数学试卷(已下线)2013-2014学年四川绵阳南山中学高一下学期3月月考数学试卷内蒙古鄂尔多斯市2018-2019学年高二上学期期中数学(理)试题广东省佛山市顺德区北滘中学2022-2023学年高一下学期第一次质量检测模拟数学试题