名校
1 . 已知
为
的外心,
且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7165ad46d58e1e08712a5ff6f522939.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97fc6ef82d4aaf914f23940b6f4cf6b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f11fff7edeb266016d3044cd1199eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7165ad46d58e1e08712a5ff6f522939.png)
您最近一年使用:0次
2017-11-12更新
|
412次组卷
|
2卷引用:广西桂林市第十八中学2018届高三上学期第三次月考数学(理)试题
名校
解题方法
2 . 在
中,若
分别为
边上的三等分点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee647fa58c470dd2588d8b087b03ce4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/243477a4a6a2a34b361165b30d360b02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee647fa58c470dd2588d8b087b03ce4f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-11-12更新
|
469次组卷
|
3卷引用:四川省南充市白塔中学2021-2022学年高一下学期3月月考数学试题
名校
解题方法
3 . 已知点
是
的中位线
上任意一点,且
,实数
满足
,设
、
、
、
的面积分别为
、
、
、
,记
,
,
, 则
取最大值时,
的值为( )
![](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/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13bd9e8b54864ca44115d24a5aeeb83c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4219640b54235858910157aaa0bbd093.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c025ee3317be1099b7bf03a11e37ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ac779b70bd71ae3a77721efb04c62b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdc6e602c10ba0b7322bf195f783b6a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/912c5d6a7df8e35d4cbf14cace7bf035.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0ecc1e313aabe7bf812dc089aecb60a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc27aa2ffbf0923408fd3138010aebb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/909a4f858f645bfb056687e7c9ba4c76.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
4 . 如图,半径为2的扇形的圆心角为120°,M,N分别为半径OP,OQ的中点,A为
上任意一点,则
的取值范围是______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f51f175b0650ed831bb5870fc577d8bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef1ab6a9b38802531e2acedc642a5d52.png)
![](https://img.xkw.com/dksih/QBM/2017/10/25/1802982629457920/1804162246000640/STEM/4c3e7281afd84484b1fc5e7c758791a5.png?resizew=150)
您最近一年使用:0次
2017-10-27更新
|
1808次组卷
|
5卷引用:江苏省仪征中学2018届高三10月学情检测数学试题
江苏省仪征中学2018届高三10月学情检测数学试题北京市中国人民大学附属中学2019-2020学年高一年级第二学期阶段检测试数学试题2015届江苏省徐州市高三第三次质量检测数学试卷2016届安徽师大附中高三最后一卷理科数学试卷(已下线)考点58 平面向量的应用(练习)-2021年高考数学复习一轮复习笔记
解题方法
5 . 已知
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bfec9b60d04233d08557aef37afa602.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36bd92859a8ac5ce6ac02cd1a0807d21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
A.3 | B.1 | C.-3或2 | D.-4或1 |
您最近一年使用:0次
名校
6 . 在矩形
中,
,
,
为矩形内一点,且
,若
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d783fe7f3ce673d5d21281174e7a7968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d69e97f518e22c4fe82d5b163fd5e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/708f7a3bfe3a103df2f772dc1021dce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55963dede1356480863a5624256576b8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
7 . 如图,正方形
中,
为
的中点,若
,则
的值为________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cdd9f345915ae742ed3dcd3f9678264.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a751c93c21512948a7414b6efafbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1113ccae1ec1a3fb67a02c34c6ba1937.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/10/db5069d1-701f-4281-a570-80e06bd98a11.png?resizew=130)
您最近一年使用:0次
2017-10-13更新
|
841次组卷
|
5卷引用:上海市建平中学2019届高三上学期九月月考数学试题
解题方法
8 . 在
中,点
是
的三等分点(靠近点B),过点
的直线分别交直线
,
于不同两点
,若
,
均为正数,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f44755c5fee4b90266eac73ad47a128.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/835e23011de53bb014c9468a25f96a07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27e62ba44cbfec6823ebc1f0c7457fb.png)
A.2 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
9 . 在
中,
为
边上一点,且
,向量
与向量
共线,若
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a28bef034275acdb54bcc1c8b85d3a59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb649fc38e1dda89169f0847fddda1f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d036188ce294e3c7427d0b7d2294fd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf45f4325ab29ad19337ea8ea89b6a31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e53522dadd472891105f036042cb6a7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae6eba6f2884c1e3537ede616e55059c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a28bef034275acdb54bcc1c8b85d3a59.png)
A.3 | B.![]() | C.2 | D.![]() |
您最近一年使用:0次
2017-10-03更新
|
1273次组卷
|
5卷引用:河北省邢台市2018届高三上学期第一次月考数学(理)试题
名校
10 . 在平行四边形
中,已知
,
,点
是
的中点,
与
相交于点
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6906f59d09ce31956d6f5ea2b23fc77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adc0c35239daa86efe3fb750c410153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
您最近一年使用:0次
2017-09-29更新
|
637次组卷
|
2卷引用:天津市第一中学2018届高三上学期第三次月考数学(文)试题