名校
1 . 在
中,
,
,
,
、
分别为
、
的中点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3aeb545fb5cc3617c8be62b1ca2fc18.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d11a5a756d8fdd7b294c4f5fd63467b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3aeb545fb5cc3617c8be62b1ca2fc18.png)
您最近一年使用:0次
2020-10-23更新
|
319次组卷
|
2卷引用:江苏省南通市如东高级中学2020-2021学年高三上学期10月月考数学试题
名校
2 . 如图在一个
的二面角的棱上有两点
、
,线段
、
分别在这个二面角的两个半平面内,且均与棱
垂直,若
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ec5d678ec42846e1d28301e3bfd4be.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c0927afc571a7c966c98192040979e.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ea52361458ce2e49ed0fe99d8e6c02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca036d049f5205cf04cb1b9c5cd03f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714cc3707bba3bfdb56e251999be8592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ec5d678ec42846e1d28301e3bfd4be.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/6/44004cf0-b900-414a-a2bc-2231500913fb.png?resizew=193)
您最近一年使用:0次
2020-10-22更新
|
1038次组卷
|
11卷引用:江苏省南京市第十三中学2020-2021学年高二下学期开学考试数学试题
江苏省南京市第十三中学2020-2021学年高二下学期开学考试数学试题山东省济宁市鱼台县第一中学2020-2021学年高二上学期第一次月考(10月)数学试题湖南师大附中2020-2021学年高二(上)期中数学试题湖南师范大学附属中学2020-2021学年高二上学期期中数学试题湖北省鄂东南省级示范高中教育教学改革联盟学校2021-2022学年高二上学期期中联考数学试题人教A版(2019) 选修第一册 实战演练 第一章 课时练习 02 空间向量的数量积运算湖北省新高考协作体2021-2022学年高二下学期期末模拟考数学试题福建省泉州师范学院附属鹏峰中学2022-2023学年高二上学期8月份统一考试数学试题湖北省荆州市部分重点高中2022-2023学年高二上学期期中联考数学试题河南省实验中学2023-2024学年高二上学期第一次月考数学试题北京市第八十中学2023-2024学年高二上学期10月阶段测评数学试题
名校
解题方法
3 . 如图,已知线段
,四边形
的两顶点
、
在以
为直径的半圆弧上,且
,则
的取值范围是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e53abbd672b82a02c4975f99fbbd2c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e5c289b8aabdbfba95c7fd1e1842f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c18b7b1c130ac6156a1f0ef921cf0124.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/06b1d2bb-f807-4947-8be6-cff5940c8900.png?resizew=141)
您最近一年使用:0次
名校
4 . 在
中,
,E,F是边
的三等分点,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db6f1b16c63ef1269d4f5b366e7b3b94.png)
_______________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccb56e48f1bdc73417904da4b6261729.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db6f1b16c63ef1269d4f5b366e7b3b94.png)
您最近一年使用:0次
2020-08-16更新
|
1074次组卷
|
4卷引用:江苏省苏州工业园区星海实验中学2020-2021学年高一下学期5月阶段性检测数学试题
解题方法
5 . 已知
为
内一点,且满足
,延长
交
于点
.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.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/8e4ef5bbd740e9330c9478994dec7d34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.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/5b2f14f9c735d0a9c6673293684da59b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
您最近一年使用:0次
名校
解题方法
6 . 如图,在平行四边形
中,E,F分别为
,
的中点,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/983a922331d8cce8d58603d9012f2bfa.png)
______ .
![](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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a47c7a15190916d06b6df7504f497e8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed7b8e3e2d2c20e41f98f194a0970e43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/983a922331d8cce8d58603d9012f2bfa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/75f0fa38-2427-4370-989f-ff61e355f0b3.png?resizew=205)
您最近一年使用:0次
2020-07-31更新
|
390次组卷
|
2卷引用:江苏省淮安市淮阴中学2020届高三下学期5月高考模拟数学试题
7 . 非空集合
关于运算
满足:(1)对任意的
,
,都有
;(2)存在
,都有
,则称
关于运算
为“融洽集”.现给出下列集合和运算:
①
{非负整数},
为整数的加法;
②
{偶数},
为整数的乘法;
③
{平面向量},
为平面向量的加法;④
{二次三项式},
为多项式的加法.
其中
关于运算
为“融洽集”的是________ .(写出所有“融洽集”的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3c2f679d53b91088ba6eb14c16cbc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5463eaf01a62bc6a772301d9e2ad19c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1632e3fef894e4120f9d8469d051e3c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25e6faeeed98a19d7012c921ca71a046.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1ab14d288a58f2bd865846544b5c4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3c2f679d53b91088ba6eb14c16cbc0.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff33c8b5cd9a2143d0d0367ef322cbea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3c2f679d53b91088ba6eb14c16cbc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02589faa1981626127e0463659e5880.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff33c8b5cd9a2143d0d0367ef322cbea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3c2f679d53b91088ba6eb14c16cbc0.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff33c8b5cd9a2143d0d0367ef322cbea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3c2f679d53b91088ba6eb14c16cbc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff33c8b5cd9a2143d0d0367ef322cbea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3c2f679d53b91088ba6eb14c16cbc0.png)
其中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3c2f679d53b91088ba6eb14c16cbc0.png)
您最近一年使用:0次
2023-06-05更新
|
254次组卷
|
7卷引用:重难点02 集合中的创新问题(2)-【帮课堂】高一数学同步学与练(苏教版2019必修第一册)
(已下线)重难点02 集合中的创新问题(2)-【帮课堂】高一数学同步学与练(苏教版2019必修第一册)(已下线)2011-2012学年四川省金堂中学10月高一月考理科数学试卷(已下线)专题1.3 集合的基本运算(6类必考点)人教B版(2019) 必修第四册 北京名校同步练习册 第十章 复数 10.1 复数及其几何意义 10.1.1 复数的概念(已下线)阶段性检测1.1(易)(范围:集合、常用逻辑用语、不等式、函数、导数)(已下线)难关必刷01集合的综合问题(3种题型40题专项训练)-【满分全攻略】(人教A版2019必修第一册)(已下线)专题01 集合和常用逻辑用语(6大题型)(练习)
解题方法
8 .
中,
,
,E为AB中点,点D在边BC上,且
,CE与AD交于点O.设
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edff1881635893293dd411ead8194aca.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/927729940a1598d48e1b6ebc1c2f78ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1be17e0a3e51cde1f50f384198e71e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a372560e41dbe1a873ac4e75b2a7892.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f28f5b8a9b402e980da29bf636bef86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edff1881635893293dd411ead8194aca.png)
您最近一年使用:0次
9 . 已知C是以AB为直径的半圆上一点,且C是线段PQ的中点,若AB=5,PQ=1,
与
的夹角为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2df52996e19029a13d4eedae75809037.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d52a30af7c4d2ddf0137524d466ad14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fe2d802f2b37e7db198c5a3c1df9a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c0927afc571a7c966c98192040979e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2df52996e19029a13d4eedae75809037.png)
您最近一年使用:0次
名校
解题方法
10 . 已知函数
,设函数
图象的最高点从左至右依次为
,
,
,…,
与
轴的交点从左至右依次为
,
,
,…,在线段
上取10个不同的点
,
,
,…,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ff99013fb2a3ec5958a2df60b1d2240.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdf6cfac2c41148d86f129dc23834a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7356ec98b600ece41f3a6b4bc26a7d59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c41d793c851a2f72f787913ba23e459c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34876d748f30fa4fc2eb6a686b5ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab94459e87c666facddbe1a23ae1899d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c1c04043c0ebb992abe030d3effcad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ff99013fb2a3ec5958a2df60b1d2240.png)
您最近一年使用:0次
2020-06-16更新
|
257次组卷
|
3卷引用:江苏省无锡市辅仁高级中学2023-2024学年高一下学期期中考试数学试题