名校
1 . 已知单位向量
,
,满足
,向量
满足
,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23bd18136e4e71e1e267bc9f8634b932.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec82bd4e0fb7887e5999b8220f60b073.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/831d6af5e9f8e97622aee62da2cd2b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ecf646bc2e4cdd46fc5cc40d741dab5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f510b86e1327796186e3907a75e95733.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69e9fb9ebe8448c2db0bc452f8aec38.png)
您最近一年使用:0次
2019-03-12更新
|
1322次组卷
|
2卷引用:辽宁省沈阳市第四十中学2023-2024学年高二上学期10月月考数学试题
名校
2 . 已知点
为
的内心,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edff1881635893293dd411ead8194aca.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d499b8c3b2a49ef46097bee9aae03b29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc35d9c2c61b18acaeb40ba5effd1722.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edff1881635893293dd411ead8194aca.png)
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2018-05-17更新
|
1387次组卷
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4卷引用:山西省实验中学2019届高三上学期第五次月考数学试题
解题方法
3 . 已知
,
与
所成角为
,点P满足
,若
,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80a48ed72a6bc36867262b7771a20eea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fe2d802f2b37e7db198c5a3c1df9a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b680f91c4a693cc9ab2c23f2e9114ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a827245813be811561f7deeb1da3ff32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa353327fcd2395116327dedba0ddd68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
您最近一年使用:0次
2020-04-14更新
|
829次组卷
|
3卷引用:浙江省之江教育联盟2019-2020学年高三上学期9月第一次联考数学试题
浙江省之江教育联盟2019-2020学年高三上学期9月第一次联考数学试题浙江省之江联盟2019-2020学年高三下学期4月第一次联考数学试题(已下线)专题12 平面向量-冲刺2020高考跳出题海之高三数学模拟试题精中选萃(浙江专版)
名校
4 . 如图所示,点P,Q分别位于边长为1的正方形
的边
上,
,记点
为
的外心,若
,则
的最大值为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dfbeb7390ee66d7b126812483a3152e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e13889db9188c455a3ac91f2f32cf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48e91eeb57e4fc87e26efb7d371f6f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/8/3e27b6a2-e055-4518-ab68-58ca764a7e9b.png?resizew=150)
您最近一年使用:0次
10-11高三·江苏·阶段练习
名校
5 . 如图,在正方形ABCD中,E为AB的中点,P为以A为圆心,AB为半径的圆弧上的任意一点,设向量
,则
最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c2b8cc1fd7caa03f1308e9c9db6375.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f21e8f1424187e608bd873d8f256c0d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/16/84ee5751-65f3-4174-bb9f-f64f0b71d8aa.png?resizew=135)
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6 . 如图,在四边形ABCD中,O为BD的中点,且
,已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c302ea267dca9ec426847311571022d7.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/562f565f3ec064932127b52d31a90c5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/151833d4b078bab8d8ce01285029dd04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90944b084b3b57a074e8c3f921dc58c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c302ea267dca9ec426847311571022d7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/c3d9317b-9190-48f9-ae82-90bd5359124d.png?resizew=130)
您最近一年使用:0次
2019-03-12更新
|
1209次组卷
|
2卷引用:江苏省盐城市东台三仓中学2019-2020学年高一上学期12月月考数学试题
名校
7 . 平面向量
,满足
,则以下说法正确的有_______ (填写序号)
①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/382b820bd29b6a488fb00ee56df44e7d.png)
②对于平面内任一向量
,有且只有一对实数
使![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2910ce2c13bd2cbc943acf4377d57d85.png)
③设
,
,
,
,且
在
处取得最小值,当
时,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae951e0bb5a2a406f1572fc1e4964265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e12da043354e717be38f4f29f7767b41.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/382b820bd29b6a488fb00ee56df44e7d.png)
②对于平面内任一向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7a1df960feef63dec4790d63f52279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d491ca1d69c14de489ec68aa280c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2910ce2c13bd2cbc943acf4377d57d85.png)
③设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02207b28e6f78b3a254b1c0b2cb0ec0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c22dfbe5473a6e2860fbd4a6ae8d005.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47abce6811fe6a9ba0f1aa948bf48e0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09eff62d9246bf1c48bf4a6d37676bde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc9fe4f56658d6af040d21b6c621c421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d9fd58e71dcae6cafaf9037d20ebd76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/625306c90a9fd5b1b3ab1fe8d9d0a211.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15eacdfa953ced4927c8585d05559ac9.png)
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8 . 在平行四边形
中,
,
,
,
为
的中点,若
是线段
上一动点,则
的取值范围是________
![](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/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/430200f272f69a987a9274bc5e984e4d.png)
您最近一年使用:0次
2018-04-28更新
|
1694次组卷
|
3卷引用:2020届天津市耀华中学高三年级上学期第二次月考试题
名校
9 . 在△ABC中,∠BAC=
,以AB为一边向△ABC外作等边三角形ABD,∠BCD=2∠ACD,
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ff7caec4fdd8fb54a3ffbff9692414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5955b01b69c87fed78d72cc63696cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
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2018-09-13更新
|
1320次组卷
|
3卷引用:福建省永春第一中学2017-2018学年高一下学期6月考试数学科试卷
名校
解题方法
10 . 已知
的内角
的对边分别为
且
,
为
内部的一点,且
,若
,则
的最大值为______ .
![](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/1b5f33fd9ec988aaddd8f4c82f960c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9888d075f6a7775ca6e1908f32430a9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48a7ab01c268636edd1f131758f029b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
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2020-03-26更新
|
903次组卷
|
5卷引用:2020届江苏省宿迁中学高三上学期1月一模全真模拟卷数学试题