名校
1 . 已知四边形
,满足
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9ac84ff19208016e8538746db57bf1d.png)
______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5f58d0919b618868df14add12c59ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9ac84ff19208016e8538746db57bf1d.png)
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名校
2 . 已知
的垂心为
,且
是
的中点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caa966c6bca068703c8656a8978457ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/820123d50de68f51cae9034db9bc3542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caa966c6bca068703c8656a8978457ae.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-09-23更新
|
680次组卷
|
6卷引用:江西省南昌市2020届高三上学期开学摸底考试数学(理)试题
名校
3 . 在平行四边形
中,
为
与
的交点,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/796f874f2fcb6322066ee48189ea615d.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e07212034ddec9e573424099f96aadcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5742e7d41c272164dfa40f0bd0b6ee0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/796f874f2fcb6322066ee48189ea615d.png)
您最近一年使用:0次
2019-09-19更新
|
545次组卷
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3卷引用:河南省南阳市2018-2019学年高一下学期期末考试数学试题
4 . 在
中,
是
边上一点,
,且
,则
的值为
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86d108b286a74d2cdf3158022040dd8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a83181297ce1a279f84147efe37a440.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-09-12更新
|
660次组卷
|
2卷引用:广东省珠海市2018-2019学年高一第二学期期末质量监测数学试题
名校
5 . 在平面凸四边形ABCD中,
,点M,N分别是边AD,BC的中点,且
,若,
,则
的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e7fa3aea72ccc36948a4a90f7368f71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbd0a8d5feb9e48a1b30f97b95616edb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50756ebd242e6ac9dfce01c1ee03da1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec1a41ca3516ff5e771153fae24360d6.png)
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2019-07-11更新
|
3257次组卷
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4卷引用:江苏省南通市通州区2018-2019学年高二下学期期末数学(理)试题
名校
6 . 如图,在
中,
,
是线段
上一点,若
,则实数
的值为__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7353f4839acdd051bafaeb37f4d5cafb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e072b35b370c78b8aca5cdcc6d7463b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/19/d92bf7a2-581d-4a78-9399-ed74f33e2f8c.png?resizew=120)
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2019-05-14更新
|
710次组卷
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7卷引用:【全国百强校】青海省西宁市第四高级中学、第五中学、第十四中学三校2019届高三4月联考数学(理)试题
7 . 如图,已知点
是平行四边形
的中心,过点
作直线与边
及
的延长线分别交于
,若
,
,则
的最小值为___________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b92dbe7d01d47d6c2db1396180caf76d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e3b07f85c98450664f92e2d22238c0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9f817b21091892691c3de36e59e0d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55db12bc9a3b7bd2e6decaaea6ba387e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/7/37a048ec-9c0e-4dbe-bbed-c8e4b188ad82.png?resizew=165)
您最近一年使用:0次
2019-05-04更新
|
612次组卷
|
2卷引用:【校级联考】湖北省武汉市武汉三中等六校2018-2019学年高一下学期期中联考数学试题
名校
解题方法
8 . 已知
是锐角
的外心,
.若
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.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/da34ca79dff70e12ee89de5a28673b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/444f456a004081fe1c8a81e9e2275f92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
您最近一年使用:0次
2020-02-09更新
|
707次组卷
|
5卷引用:2016届上海市徐汇区高考一模(理科)数学试题
2016届上海市徐汇区高考一模(理科)数学试题(已下线)专题02 平面向量-2021年高考数学二轮复习解题技巧汇总(新高考地区专用)(已下线)第13讲 向量的应用(讲义)-【教育机构专用】2021年春季高一数学辅导讲义(沪教版2020必修第二册)上海交通大学附属中学2021-2022学年高一下学期4月月考数学试题(已下线)专题13 平面向量(模拟练)-1
名校
9 . 已知
是等边
的外接圆,其半径为4,
是
所在平面内的动点,且
,则
的最大值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e00eb9ed89b33f218fbdff9b76a8cd17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a56c9d63182eb3924f76caa4f38ba9e7.png)
A.4 | B.6 | C.8 | D.10 |
您最近一年使用:0次
2019-02-20更新
|
2273次组卷
|
4卷引用:【全国百强校】辽宁省鞍山市第一中学2019届高三第一次模拟考试数学(理)试题
【全国百强校】辽宁省鞍山市第一中学2019届高三第一次模拟考试数学(理)试题【校级联考】湖北省部分重点中学2018-2019学年高一下学期期中考试数学试题(已下线)专题5.2 平面向量的基本定理及坐标表示(练)【理】—《2020年高考一轮复习讲练测》宁夏回族自治区银川市第二中学2019-2020学年高三上学期12月月考数学(理)试题
10 . 边长为
的菱形
中,
与
交于点
,
是线段
的中点,
的延长线与
相交于点
.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6107217f1aaec937f93053053154a42.png)
![](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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.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/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6107217f1aaec937f93053053154a42.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-02-14更新
|
773次组卷
|
2卷引用:【全国百强校】天津市七校(静海一中、宝坻一中、杨村一中等)2019届高三上学期期末考试数学(文)试题