解题方法
1 . 如图在直角梯形
中,已知
,
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/188a6f4bc099bce7d8e89e292f00e84d.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a85a02b00d7cc7e692f916e56508c22c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84ab0f06ec37a8959dda015204261de0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/188a6f4bc099bce7d8e89e292f00e84d.png)
![](https://img.xkw.com/dksih/PilotRun/2019/10/9/2308152996413440/2314881509220352/EXPLANATION/149d5b6b945a400db1db64f221953498.png?resizew=107)
您最近一年使用:0次
解题方法
2 . 已知三角形
中,
为
中点,
为
上一点,若
,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b3dcd9161991c027aed30b55f3b7eda.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf588c6cfdab38e2b44060ecd8bd859e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b3dcd9161991c027aed30b55f3b7eda.png)
您最近一年使用:0次
2023-08-05更新
|
521次组卷
|
5卷引用:专题01 向量基底、四心及其应用(2)-期末考点大串讲(苏教版(2019))
(已下线)专题01 向量基底、四心及其应用(2)-期末考点大串讲(苏教版(2019))北京市平谷区2022-2023学年高一下学期期末数学试题(已下线)高一下学期期末复习填空题压轴题二十三大题型专练(1)-举一反三系列(人教A版2019必修第二册)(已下线)专题01平面向量线性、数量积运算4种常考题型归类-《期末真题分类汇编》(北京专用)【北京专用】专题07平面向量(第三部分)-高一下学期名校期末好题汇编
3 . 已知边长为2的菱形
中,
是边
所在直线上的一点,则
的取值范围为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fe8edf15d8534d07b6e89038238dd33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c08a0bd4660dea2eb6d09c7e415ed065.png)
您最近一年使用:0次
2023-07-18更新
|
815次组卷
|
7卷引用:重难点专题03 妙用极化恒等式解决平面向量数量积问题-【帮课堂】(苏教版2019必修第二册)
(已下线)重难点专题03 妙用极化恒等式解决平面向量数量积问题-【帮课堂】(苏教版2019必修第二册)四川省成都市成华区2022-2023学年高一下学期期末数学试题(已下线)第六章 复数与平面向量 专题1 向量背景的最值问题(已下线)专题突破卷14 平面向量的最值范围问题(已下线)第13讲 拓展一:平面向量综合问题-【帮课堂】(人教A版2019必修第二册)(已下线)专题1.9 平面向量的最值范围-重难点突破及混淆易错规避(人教A版2019必修第二册)(已下线)模块二 专题4 平面向量的结论与应用(北师大版)
解题方法
4 . 已知矩形
,
,
,沿对角线
将
折起,若二面角
的大小为
,则
,
两点之间的距离为______ .
![](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/f656e1d1f68954e5f06de8958f6a9310.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c909cd1b6f3fa1ec39eb245e8f5c11c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbf2d033664f89ef059ac8303622a3bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
您最近一年使用:0次
2023-06-28更新
|
398次组卷
|
2卷引用:江苏省连云港市2022-2023学年高一下学期期末数学试题
5 . 设
,
分别是双曲线
的左、右焦点.若点P在双曲线上,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/757959fa7dd76eee8a0469dc1051918d.png)
_________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e20ad2cc8c40de7cbff3d35e3bce77f.png)
_________ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/565bc68d208cd5e0c90a32851faf3814.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ce67f2138e7295cd72d66b2908cb6de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/757959fa7dd76eee8a0469dc1051918d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e20ad2cc8c40de7cbff3d35e3bce77f.png)
您最近一年使用:0次
解题方法
6 . 如图,圆
为
的外接圆,
,
,
为边
的中点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d006bdb8336b4bcc5ba7dc2fd81f3614.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f186ea827f7becafd1ac4955e22c6812.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d006bdb8336b4bcc5ba7dc2fd81f3614.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/15/2a73b796-f01a-463e-bb50-c3fe68c7f794.png?resizew=132)
您最近一年使用:0次
7 . 点
是平面上一定点,
、
、
是平面上
的三个顶点,
、
分别是边
、
的对角,以下命题正确的是_______ (把你认为正确的序号全部写上).
①动点
满足
,则
的重心一定在满足条件的
点集合中;
②动点
满足
,则
的内心一定在满足条件的
点集合中;
③动点
满足
,则
的重心一定在满足条件的
点集合中;
④动点
满足
,则
的垂心一定在满足条件的
点集合中;
⑤动点
满足
,则
的外心一定在满足条件的
点集合中.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
①动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194928662ef5170ec329fa0839e96810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
②动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94fea2c56ab9f6647c6db258339dcd10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
③动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce96819513072752d6e249249e85fe36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
④动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9419762aaaa13f5e3d708025729886c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
⑤动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f84e151dfca1e1fd5b3cc4a18864227f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
名校
解题方法
8 . 已知点M为双曲线C:
在第一象限上一点,点F为双曲线C的右焦点,O为坐标原点,
,∠MOF=60°,则双曲线C的离心率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29b0d17ce7f9602a4696fc2e939fabcb.png)
您最近一年使用:0次
名校
解题方法
9 . 已知等腰
中,底边
长为2,腰长为
为
所在平面内一点,则
的最小值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f989e558c84421dddca8138b61e5e68a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb7a9bb8ba3d2ec7d9ccb5f6c76abfd2.png)
您最近一年使用:0次
2023-04-19更新
|
517次组卷
|
3卷引用:江苏省淮安市高中校协作体2022-2023学年高一下学期期中数学试题
名校
解题方法
10 . △ABC中,角A,B,C对边分别为a,b,c,点P是△ABC所在平面内的动点,满足
(
).射线BP与边AC交于点D.若
,
,则角B的值为_____________ ,△ABC面积的最小值为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a004b51ac1c5943961997870ba89a09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3be362dec96173f246ff747264007817.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1332569961b96f38eb4ef97402623bd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714cc3707bba3bfdb56e251999be8592.png)
您最近一年使用:0次