名校
1 . 已知向量
、
的夹角为
.
(1)求
·
的值
(2)当
时,对于任意的
,证明,
和
都垂直.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f97bd4f5d2592fb79bb95186975ec80.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd78a9d5631adb1f27c11ed4eb01a5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d670dcd0ce51abe372bc51a88ba1a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67a5673958e175b00200a75e645c73c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86bf189ad68ca83684c76d2bdd926980.png)
您最近一年使用:0次
2024-02-17更新
|
621次组卷
|
6卷引用:河北省廊坊市文安县第一中学2023-2024学年高一下学期第一次集中练(3月月考)数学试题
河北省廊坊市文安县第一中学2023-2024学年高一下学期第一次集中练(3月月考)数学试题【名校面对面】2022-2023学年高二大联考(8月)数学试题(已下线)6.2.4向量的数量积【第二课】“上好三节课,做好三套题“高中数学素养晋级之路(已下线)第六章 平面向量及其应用章末综合达标卷-同步精讲精练宝典海南省乐东黎族自治县华东师范大学第二附属中学乐东黄流中学2023-2024学年高一下学期3月月考数学试题(已下线)2.5 从力的做功到向量的数量积6种常见考法归类(1)-【帮课堂】(北师大版2019必修第二册)
名校
2 . 设向量
.
(1)求证:
与
互相垂直;
(2)若
,且对任意
与
大小相等,求
;
(3)若
,求
与
的夹角
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fb6540270b128286ac4797c703cfcf4.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed492f7b29166ba5c1f0023b05a439c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3143307ad0ba4a631eac04e814993655.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1478b62eece713c7c5a14b2921ab26ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47bbb2be6de9eab2273faa01ddbcdb7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0035fcdc6a2dfb5836f4dc93dcaf9386.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/628560d39eeb0339fa00c9c15ab2c095.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/754e3e07ae9d94bd5e987bd223b84af3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a0b19e69be46452425916a0fcb49c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b76118bdca6c463cfb19b66f30281c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
您最近一年使用:0次
名校
解题方法
3 . 已知向量
,且
,
与
的夹角为
,
.
(1)求证:
;
(2)若
,求
的值;
(3)若
与
的夹角为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1238a7a8ce9db1a47ae0ac80d5ed70cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9ac2ac0d4346f5970ef9bbf5247c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48bd8a052e56b53a66497b4b55a968a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc155e36276a2226c40a1f4ef7a0f41a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084c56a351d429b03ba2cea36214ccd2.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a158b4f695365b7a8f1cd2f37d5110.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b86b41e6853f74b223bfd77d3097d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7a1df960feef63dec4790d63f52279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b8a88a16125366536cb4ad658e0cf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2022-06-21更新
|
558次组卷
|
2卷引用:河北省石家庄市四十三中2021-2022学年高二下学期第一次月考(4月)数学试题
名校
4 . 设两个非零向量
和
不共线.
(1)如果
,
,
,求证:A、B、D三点共线;
(2)若
、
是夹角为
的两个单位向量,试确定k的值,使
与
垂直.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b28baf17059c56ee9ad1ae4814acd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b04618e5b2db68f2de6ba68972c505c.png)
(1)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d29330d2644d1e90e15f58eac28cc894.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75d2c2617d4ab9f5561badbce6d2aaeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43e75e692c23140a464d103ef2eff362.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b28baf17059c56ee9ad1ae4814acd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b04618e5b2db68f2de6ba68972c505c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f785147690f83dcee0a0bc6c327e75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59dbae9556d1b072fbc48b1ac9e2dfde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d61c1fc4bc5eb69a6436f5d483359e95.png)
您最近一年使用:0次
名校
5 . 设曲线
是焦点在
轴上的椭圆,两个焦点分别是是
,
,且
,
是曲线上的任意一点,且点
到两个焦点距离之和为4.
(1)求
的标准方程;
(2)设
的左顶点为
,若直线
:
与曲线
交于两点
,
(
,
不是左右顶点),且满足
,求证:直线
恒过定点,并求出该定点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/a2644e9f73e5871db934fdafc431d675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b256345d7109e081b7c895591e995d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/077d8028f013635990b865019e807854.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2019-12-13更新
|
910次组卷
|
4卷引用:河北省冀州中学2020届高三上学期期末数学(文)试题
河北省冀州中学2020届高三上学期期末数学(文)试题黑龙江省哈尔滨市第六中学2019-2020学年高三上学期第三次调研数学(文)试题(已下线)专题01 解析几何(第三篇)-备战2020高考数学黄金30题系列之压轴题(新课标版)云南省昆明市官渡区第一中学2019-2020学年高二上学期期末考试数学(理)试题
6 . 平面上的两个向量
,
满足
,
,且
,
.向量
,且
.
(1)如果点
为线段
的中点,求证:
;
(2)求
的最大值,并求此时四边形
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d60dcb171bb7fd972aab8294d63acdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f68628a408537b1cf3bf1ca2a69731b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a8cda116f996002aa924d5c014ba0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ce330b3ac77225077d5b05b653b9613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bfe4da6f357e55927d25d9d27ea8717.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0904a72b63d7c4fa77e7cbe9cb8448ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85741b549aac0ee8567368f6b7e020c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d2b60c8c7abac8fd543ce8ce442cbd2.png)
(1)如果点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3df8575d9e39f56b6260658643fede26.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f0e6d3115e900f1a359ec4f894e8896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14e902eb263971b466d0fcd91c56b453.png)
您最近一年使用:0次
2017-02-08更新
|
750次组卷
|
2卷引用:2016-2017学年河北武邑中学高一周考12.4数学试卷