名校
解题方法
1 . 如图,在
中,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc49374c18200d35bd60fd5fc02f2284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0838ec170c4aa04db0b37487adc75883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/dd00ca07-d280-400d-91fa-ec5841d944ce.png?resizew=212)
您最近一年使用:0次
名校
解题方法
2 . 在
中,点
分别在边
上,且
,记
,若
则
的值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7db7c08836b6577b49677115aefe31f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5415c235863bfba1008463d855d14bea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2819fb38752dd1fb039650fb7b39f8d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d759efa8394237b330b99e220e0174e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d76a2d929d1123f2055e0895bf05980.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
您最近一年使用:0次
2020-03-21更新
|
343次组卷
|
3卷引用:2020届江苏省扬州市大桥高级中学高三下学期阶段性考试数学试题
名校
3 . 如图,在等腰直角
中,
,
分别为斜边
的三等分点(
靠近点
),过
作
的垂线,垂足为
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ec2a057c4956612381a359a984e1008.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
![](https://img.xkw.com/dksih/QBM/2020/8/14/2527907448750080/2540649089114112/STEM/f56ca217058148a8b53c44d89cfbae7c.png?resizew=222)
您最近一年使用:0次
名校
4 . 在△
中,
,
,
,
是△
所在平面内一点,若
,则△
面积的最小值为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f769ac74589e9ec5b1825c5cb32f1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/007a01e5a6dc34a2fd78127ad98ea8c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ea6e6eaa1bef454364f741167084095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
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名校
5 . 如图,在圆的内接四边形ABCD中,对角线BD为圆的直径,
,
,
,点E在BC上,且
,则
的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06201e4f55b78d8b30afb257d5a1b16b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037b342a682cbd4241855a243da3c016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a869461492bf99722c51dd18e17e7534.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf7ab83afe05407be2d2518b16aa796.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/2f98eea3-31ac-416d-b7e3-10e9824d9b1b.png?resizew=131)
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2020-05-28更新
|
297次组卷
|
2卷引用:江苏省盐城市第一中学2020届高三下学期第一次调研考试数学试题
6 . 在平行四边形
中,
,
,
,若
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18e2a96ad10f818c9a5ad7ef46a304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af2436591a889729b1a3bdcca1991a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b57346a9d103a66b7f3380a56cf1b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edb65217a31740533698001b01a71d71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/351793adf1a08ae21613254dac51cd7a.png)
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名校
7 . 正方形ABCD的边长为1,O为正方形ABCD的中心,过中心O的直线与边AB交于点M,与边CD交于点N,P为平面上一点,满足
,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de40363b7dfc31353b5ecfd6ce174d21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f4ea7498731e5af223a75a5ab7f32c.png)
您最近一年使用:0次
解题方法
8 . 设D,E分别是△ABC的边AB,BC上的点,
,若
(λ1,λ2为实数),则λ1+λ2=_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa38bb5079900e52f8e1f690d8d6463f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f40d04b4960e1b12c43d46afdccb4401.png)
您最近一年使用:0次
2020-03-17更新
|
292次组卷
|
3卷引用:2020届江苏省南京市秦淮区高三第一次模拟考试适应性测试数学试题
2020届江苏省南京市秦淮区高三第一次模拟考试适应性测试数学试题(已下线)第28讲 向量的分解与向量的坐标运算-2021年新高考数学一轮专题复习(新高考专版)巩固练02 平面向量的基本定理及坐标表示-2020年【衔接教材·暑假作业】新高二数学(2019人教版)
名校
解题方法
9 . 如图,半径为1的扇形
的圆心角为
,点
在弧
上,且
.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c0927afc571a7c966c98192040979e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/744f6cde9d70c3e27c36e4ffec81b9c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85af397846e8907d6f95a72837316f21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/4/d5e24a64-2fc2-40bc-88b7-0f43ef83c623.png?resizew=168)
您最近一年使用:0次
名校
10 . 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:江苏省常州北郊华罗庚江阴高中三校2018届高三联考数学(文)试题