名校
解题方法
1 . 正方形
的边长为2,点P为
边中点,则
=______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ca3f2a47f37a8761ea62a1c80aa1be8.png)
您最近一年使用:0次
名校
2 . 点
是三角形
内一点,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83238bfff75ce7c7dc8c19a15b50cf7b.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ef1c909b797a8cdbaba01c323577349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83238bfff75ce7c7dc8c19a15b50cf7b.png)
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2024-01-18更新
|
673次组卷
|
7卷引用:模块一 专题3 平面向量的应用(A)
(已下线)模块一 专题3 平面向量的应用(A)河南省焦作市第四中学2022-2023学年高一下学期3月月考数学试题(已下线)6.4.1平面几何中的向量方法(已下线)专题07 平面几何中的向量方法 向量在物理中的应用-《重难点题型·高分突破》(人教A版2019必修第二册)(已下线)专题07 向量应用-《重难点题型·高分突破》(苏教版2019必修第二册)福建省漳州市云霄第一中学2023-2024学年高一(平行班)下学期第一次月考数学试题(已下线)上海市高一数学下学期期末模拟试卷01-期末考点大串讲(沪教版2020必修二)
3 . 已知
为正方体
表面上的动点,若
,则当
取最小值时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a832202bcd57a91a9462590fda90b23d.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f2ed392e85e469c6e80eeeaaaf0c239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a832202bcd57a91a9462590fda90b23d.png)
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4 . 已知
所在平面内的动点M满足
,且实数x,y形成的向量
与
向量共线,则动点M的轨迹必经过
的________ 心.(在重心、内心、外心、垂心中选择)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07d1d63e4ab0db6d005b30dfc392de2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b48b85ce995c461911b6182a84d1dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b7256baf96702bc084c3447a52315ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2023-09-07更新
|
581次组卷
|
7卷引用:专题2 平面向量的结论与应用
(已下线)专题2 平面向量的结论与应用(已下线)模块二 专题2 平面向量的结论与应用(苏教版)(已下线)模块二 专题4 平面向量的结论与应用(北师大版)河北省邢台市第二中学2022-2023学年高一下学期3月月考数学试题(已下线)重难点专题02 平面向量痛点问题之三角形“四心”问题-【帮课堂】(苏教版2019必修第二册)(已下线)专题9.7 平面向量的最值范围及三角形的四心-重难点突破及混淆易错规避(苏教版2019必修第二册)(已下线)专题突破:三角形“四心”的向量式-同步题型分类归纳讲与练(人教A版2019必修第二册)
名校
5 . 已知在
中,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d17b397bc5fc25818fcbdd57da0dcb07.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bfa54b6a51432418184d65ca4de68a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d17b397bc5fc25818fcbdd57da0dcb07.png)
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2023-08-06更新
|
364次组卷
|
2卷引用:天津市实验中学滨海学校2022-2023学年高一下学期期中数学试题
解题方法
6 . 已知
为
内一点,满足
,则
和
的面积比为____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79d7c5787f8db4dd96d2cdfb9e0ce81c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
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解题方法
7 . 已知点P在
所在的平面内,则下列各结论正确的有______ .
①若P为
的垂心,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3b155f027cff2b2227011eb10be484.png)
②若
为边长为2的正三角形,则
的最小值为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
③若
为锐角三角形且外心为P,
且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
④若
,则动点P的轨迹经过
的外心
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
①若P为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2596ac1a8301e39179b80fbd3bd3169.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3b155f027cff2b2227011eb10be484.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb7a9bb8ba3d2ec7d9ccb5f6c76abfd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36965c4fa2678fe61578db7f38ac37c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/131ac7eb1e911c9a40e84235bf3742ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea6fb67585e4a8922ec116dc6ac5e034.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-07-24更新
|
554次组卷
|
3卷引用:辽宁省大连市大连育明高级中学2022-2023学年高一下学期期中数学试题
辽宁省大连市大连育明高级中学2022-2023学年高一下学期期中数学试题黑龙江省实验中学2022-2023学年高一下学期期末数学试题(已下线)专题03 平面向量的9种常考题型归类(2) -《期末真题分类汇编》(北师大版(2019))
名校
解题方法
8 . 设
为
的外心a,b,c分别为角A,B,C的对边,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dafd0493191ba1a8f6dcbeaf4433210.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcdb7a488910743dc5c63afb394b87e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae7888d643678ea18f83f3237732052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dafd0493191ba1a8f6dcbeaf4433210.png)
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2023-05-20更新
|
396次组卷
|
2卷引用:江西省宜春市樟树市清江中学2022-2023学年高一下学期5月期中考试数学试题
名校
9 . 已知
的外心是O,其外接圆半径为1,设
,则下列论述正确的是____________ .
①若
,
,则
为直角三角形;
②若
,则
为正三角形;
③若
,
,则
为顶角为
的等腰三角形;
④若
,
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bddf491a09b0e5485d53a8efe9b6f3b3.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c9c39efc53af82fec6d9cf76db5afa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ad39768ebe8d7a3a0fd09efe7e200ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f28f85a4cc12697b8c9788e64f0d61fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c9c39efc53af82fec6d9cf76db5afa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f71c645cf1b59b470c2d0ff04a79cbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1d99ddb507b59edc658f634384a4c41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a14178ab8fb2a3c405dd1c69e3063512.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5864d6ac97cbf0fdbb28ded974dd3f58.png)
您最近一年使用:0次
2023-05-12更新
|
498次组卷
|
3卷引用:北京市一零一中学2022-2023学年高一下学期期中考试数学试题
10 . 若
为
的垂心,
,则
=___ ,
___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c99ac203dc24eec48e64b39b9d5f105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ca1cdfeb579f49692fb07bf04c514bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0252977d38df16845da8b27885aed987.png)
您最近一年使用:0次