10-11高二下·辽宁大连·期末
名校
1 . 已知向量
,
的夹角为
,且
,
,若
,
,
求(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e708be069ecbfa5b18d36b40d0b8ccec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfc0de16bdd7237d6e171e35b4366f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b1e29a15e9156d0180f12324166e4f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8def4ffdddebb6254490eb3303a2e76.png)
求(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a560b8ff794c12dc8d194bcd2e3f3554.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b35dae14065a7658309bc830ba6d21a0.png)
您最近一年使用:0次
2016-11-30更新
|
817次组卷
|
4卷引用:2010-2011年辽宁省瓦房店市高级中学高二下学期期末联考理科数学
(已下线)2010-2011年辽宁省瓦房店市高级中学高二下学期期末联考理科数学湖南省衡阳市第二十六中学2019-2020学年高一下学期期末数学试题广西桂林市2018-2019学年高一下学期期末数学试题广西桂林市普通高中联盟2021-2022学年高一下学期期中数学试题
10-11高二下·浙江温州·期末
2 . 已知
为等边三角形
所在平面内的一个动点,满足
,若
,求
的值.
![](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/fa5342ef008fd3e2f07cabe6a54044c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d348951560955a0a75aeadd144c03719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fda7d24c49ec00b91bd93395f326ad5.png)
您最近一年使用:0次
11-12高二上·湖北武汉·期末
3 . 已知向量
,
,若向量
与
的夹角为
,且
求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbf7aeb7eac229673b0f90f62b696c21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394e3aff4e83ac226b440fec1ec90d04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a92e6eba8dab638fd66831cd3a0b6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427fa45527d0ce469bfd060bf6f991f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e3b9a20c31e397ae1dc8a44baf7de91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc0a8bb3c063c02f3b06172debb2254.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e8f1051f88bfe1e32a89925425edc92.png)
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11-12高二上·广东·期末
4 . 已知向量
,
,函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/740710b92f3f3af8f447d1a12799ef81.png)
(1)求
的最小正周期;
(2)若
,求
的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80cc98f36071ad0d08466dd18720d582.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb55bde5f8bbe08b978d6f4549098b83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/740710b92f3f3af8f447d1a12799ef81.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44fed570c7b7f72db68bd85de5379e97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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9-10高二下·广东深圳·期末
5 . 向量
满足
,
.
(1)求
关于k的解析式
;
(2)请你分别探讨
⊥
和
∥
的可能性,若不可能,请说明理由,若可能,求出k的值;
(3)求
与
夹角的最大值.
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/92ad8411772a4c358b73add9e0968c3d.png)
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/fd2f93ad01bc4df29ee1edb81aa2cf6e.png)
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/e85d368d670949f8be014370c53d953f.png)
(1)求
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/ce7ba8de91304461ac54eeae53f57c9f.png)
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/e666fb5aabd3411cbdd8138490ccdfdd.png)
(2)请你分别探讨
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/0b62bec46a5445dcbca602bb978c94ba.png)
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/c7fa729ae47445079cc105eb33b52b25.png)
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/0b62bec46a5445dcbca602bb978c94ba.png)
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/c7fa729ae47445079cc105eb33b52b25.png)
(3)求
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/0b62bec46a5445dcbca602bb978c94ba.png)
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/c7fa729ae47445079cc105eb33b52b25.png)
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2010·河北保定·一模
解题方法
6 . 设函数![](https://img.xkw.com/dksih/QBM/2010/8/20/1569818736173056/1569818741260288/STEM/f2fae7376df04dc5807c82eb3607d052.png)
(1)求
的最小正周期与单调递减区间;
(2)在△ABC中,a、b、c分别是角A、B、C的对边,已知
,△ABC的面积为
的值.
![](https://img.xkw.com/dksih/QBM/2010/8/20/1569818736173056/1569818741260288/STEM/f2fae7376df04dc5807c82eb3607d052.png)
(1)求
![](https://img.xkw.com/dksih/QBM/2010/8/20/1569818736173056/1569818741260288/STEM/78169a8e5f4b47dd919d098d9717c905.png)
(2)在△ABC中,a、b、c分别是角A、B、C的对边,已知
![](https://img.xkw.com/dksih/QBM/2010/8/20/1569818736173056/1569818741260288/STEM/15b4baa8990845d8aed25c261bd11e84.png)
![](https://img.xkw.com/dksih/QBM/2010/8/20/1569818736173056/1569818741260288/STEM/380fd71d73d14c32ad2e6aa4220defef.png)
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