名校
解题方法
1 . 平面内互不重合的点
、
、
、
、
、
、
,若
,其中
,2,3,4,则
的取值范围为( )
![](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/04b56e44e4f0424a2b7a45567120a2e4.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/2857fac4963b129d99e79dcb3e13d295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a821e643d5fae24caed0faa6d423dad6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ae2c84ddd51f10d399401cbf91a1217.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c45176df950dfe48b8ca7eac08ee349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14d2f8b944ab6d21b77a1f52a0530654.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-02-27更新
|
458次组卷
|
3卷引用:北京市清华大学附中2024届高三下学期开学考试数学试题
2 . 在
中,
.
(1)设点
为边
靠近点
的三等分点,
,求
的值;
(2)设点
是线段
的
等分点,其中
,
.
(i)当
时,求
的值;(用含
的式子表示)
(ii)求
的值.(用含
的式子表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a090959162421593f75617a7c8bfcb7.png)
(1)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b3235a1c37276b3af572302da1972e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/759ded5c4d3bc2ab67bf37a6c376e712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bce99690471cb1d86794a4f81017c6ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
(i)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45cf86650443d1b86c79b1e3edc7e5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed44d30460ef5e6e6baf7201694d0b2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/804609594d0ee7a777290f97eaf8a76e.png)
(ii)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d42bb5c0976fbd0ac5eda8217470d894.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/298e3fa774712113dc508a6abd5e99da.png)
您最近一年使用:0次
名校
解题方法
3 . 已知
是单位向量,向量
满足
,且
,其中
,且
.则下列结论中,正确结论的序号是___________ .
①
;
②
;
③存在x,y,使得
;
④当
取最小值时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56eda4bb8604c18d0016a4377d05435a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd37f7f1058b31cd36e871ea80e6edee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4540e84bfb9ff9bb9f95d4d51dc99024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1157bfeb62efbb32bf37986e1b5affb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5ab4b75fa22deba7fcbcdcb31dd45b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5558c083d34cbb0a58d3ce1dc6f5778e.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeb9930c5b264d8e8602a6267d1015b0.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6315a65f0d41676603e4e15d3da0145.png)
③存在x,y,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a651125429f3ecc99794c427c354377.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4243432eb9da670db29b50c16109f9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/979f456da73404e2f82c94a0170248ac.png)
您最近一年使用:0次
2022-07-08更新
|
1898次组卷
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4卷引用:北京市朝阳区2021-2022学年高一下学期期末质量检测数学试题
北京市朝阳区2021-2022学年高一下学期期末质量检测数学试题(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)(已下线)第六章 平面向量及其应用(基础、典型、易错、压轴)分类专项训练(3)湖南省衡阳市第八中学2024届高三上学期第五次月考数学试题