名校
解题方法
1 . 已知向量
,
,
满足
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b8bd7b8909558e007f2acefccc6fd67.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb573cc0f30d5c32cdad1510793f0e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13caa30704ad0a752626351dfdd25b93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ad8773f031a1e35117e1b7b8132d097.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414c4b7cbf90e2447c829e2feb24d8e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b8bd7b8909558e007f2acefccc6fd67.png)
您最近一年使用:0次
2022-05-05更新
|
1133次组卷
|
5卷引用:北京市东城区2022届高三二模数学试题
解题方法
2 . 已知单位向量
,
的夹角为
,且
,(其中x,
).当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad7c3a0c7f4fe03ee97392a736276e27.png)
______ ;当
时,
的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8df6d6a87e4c3f2ecf22dd0679ad756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f370a1d4dd341e5ab1774a66c66c1204.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f24efa543736b9064b2abe9d35a46308.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad7c3a0c7f4fe03ee97392a736276e27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bd0a05be6abb1b8afdd5575b148b857.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c97c7d26c3d2ba960cb4308b5fc6d3.png)
您最近一年使用:0次
2022-05-04更新
|
207次组卷
|
2卷引用:北京市顺义区第二中学2022届高三适应性测试数学试题
名校
解题方法
3 . 在矩形ABCD中,
,
,点P在AB边上,则向量
在向量
上的投影向量的长度是_____ ,
的最大值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f656e1d1f68954e5f06de8958f6a9310.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/754ff99a252a251da4b9b3db4912f57d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99a1b3d5f4068fbcba6e4b47971d51a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad71df408c9bf0c7ab6367246d76e7fc.png)
您最近一年使用:0次
2022-04-20更新
|
2102次组卷
|
6卷引用:北京市通州区2022届高三高考一模数学试题
北京市通州区2022届高三高考一模数学试题广东省佛山市南海艺术高级中学2022届高三下学期第三次大测数学试题北京卷专题15平面向量(填空题)天津市耀华中学2023届高三二模数学试题(已下线)10.2 平面向量的数量积(精练)(已下线)6.3.5 平面向量数量积的坐标表示 (精讲)(2)【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)
名校
解题方法
4 . 已知向量
,
在正方形网格中的位置如图所示.若网格上小正方形的边长为1,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bacce6f552b0140f05694d07614e5428.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ed9c2e9fabbfc63733bae8fa079d00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bacce6f552b0140f05694d07614e5428.png)
![](https://img.xkw.com/dksih/QBM/2022/4/6/2952482258714624/2952554769268736/STEM/2ec957fb43274b5288420c9eae3d3915.png?resizew=117)
您最近一年使用:0次
2022-04-06更新
|
1083次组卷
|
5卷引用:北京东城区2022届高三一模数学试题
名校
解题方法
5 . 已知平面向量
,
满足
,
,且
与
的夹角为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f18996bd00253c3ad9f91780103affb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df42687a73cb92e92a3cb6e54f1edb15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f785147690f83dcee0a0bc6c327e75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59e912b86e064e678ab34210f3fa02ef.png)
A.![]() | B.![]() | C.![]() | D.3 |
您最近一年使用:0次
2022-03-30更新
|
2785次组卷
|
9卷引用:北京市朝阳区2022届高三一模数学试题
名校
解题方法
6 . 已知平面向量
,
的夹角为120°,且
,
,则
的值为______ ,
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f18996bd00253c3ad9f91780103affb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b72494c40e9c7afffd5238fd53e2e3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b0fe4d834e8eaca89ceaf9c64cdabd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/045a8e5e5808b8c77e8065967b532909.png)
您最近一年使用:0次
2022-01-24更新
|
1214次组卷
|
4卷引用:北京市2022届高三普通高等学校招生全国统一考试数学模拟试题
7 . 在
中,
,
为
上一点, 且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/223c67dd9cd2bbab06e163df2e44801d.png)
___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5843f195d7d89096fae8e69c068a80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adb84cc01fc57c187eec263679cc9625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/223c67dd9cd2bbab06e163df2e44801d.png)
您最近一年使用:0次
名校
解题方法
8 . 已知
,
是单位向量,
=
+2
,若
⊥
,则|
|=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb573cc0f30d5c32cdad1510793f0e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb573cc0f30d5c32cdad1510793f0e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb573cc0f30d5c32cdad1510793f0e7b.png)
A.3 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-05-02更新
|
914次组卷
|
5卷引用:北京市海淀区2021届高三下学期期中数学试题
解题方法
9 . 已知在直角三角形
中,
,那么
等于______ ;若
是
边上的高,点
在
内部或边界上运动,那么
的最大值是____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7fefb074286842c6114b0cc5343d729.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf586f28e8fbdd8c30227f60d1aba660.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e2a484ffea9ddea30025a44277eeed2.png)
您最近一年使用:0次
2021-03-25更新
|
742次组卷
|
3卷引用:北京平谷区2021届高三数学一模试题
名校
解题方法
10 . 已知
、
、
均为单位向量,且满足
,则
的值为( )
![](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/d20ec3efaa6b6ff5769e8999df5714a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe09c6bde7bc93bca897441dc966c63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b89e7ff008dea7530bdc4ea5b6419d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-03-19更新
|
2262次组卷
|
10卷引用:北京市第八十中学2022届高三下学期考前热身数学练习试题
北京市第八十中学2022届高三下学期考前热身数学练习试题山东省济宁市2021届高三一模数学试题吉林省长春市东北师范大学附属中学2022届高三理科数学综合训练(一)(已下线)预测卷02-2021年高考数学金榜预测卷(山东、海南专用)(已下线)2021年高考数学(理)押题预测卷(新课标III卷)02(已下线)押第7题 平面向量-备战2021年高考数学临考题号押题(新高考专用)山西省晋中市祁县中学2021届高三下学期4月月考数学(文)试题山西省晋中市祁县中学2021届高三下学期4月月考数学(理)试题(已下线)第八章 向量专练2—共线定理的应用-2022届高三数学一轮复习海南省海口市海口中学2021-2022学年高二下学期期末考试数学试题(B卷)