名校
1 . 平面向量
,
,
,则
与
的夹角是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7958a6bddd1d578bbd6fbcb92e3f6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db24e47304fec964e8cb9278280046bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f91d35d0fc968abfcdce09f105a9ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6卷引用:上海市南洋模范中学2023-2024学年高二上学期开学考数学试题
2 . 已知边长为1的正方形
,点
为
中点,点
满足
,那么
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/0ad431c97da993169f417517cbd2431d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9df4af2fee086a0ec9e704c615a843fe.png)
A.2 | B.![]() | C.![]() | D.![]() |
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4卷引用:吉林省长春博硕学校2023-2024学年高二上学期期初考试数学试题
吉林省长春博硕学校2023-2024学年高二上学期期初考试数学试题北京市平谷区2022-2023学年高一下学期期末数学试题(已下线)专题05向量数量积期末10种常考题型归类-《期末真题分类汇编》(人教B版2019必修第三册)【北京专用】专题07平面向量(第三部分)-高一下学期名校期末好题汇编
3 . 思维辨析(对的写正确,错的写错误)
(1)若向量
与
的夹角为
,直线
与
所成的角也为
.( )
(2)向量的投影一定是正数.( )
(3)
.( )
(4)已知
,
是夹角为
的两个单位向量,则向量
在向量
上的投影向量为
.( )
(1)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc1070a28cb9cb8553c29747d1993b16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(2)向量的投影一定是正数.
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54e48024e42a8228ee86a14730ffc7d5.png)
(4)已知
![](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/be6a6301878fed2a01413020b27310a5.png)
![](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/91eb123146219b15746e92084c13cb87.png)
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解题方法
4 . 已知平面向量
,
的夹角为
,且
,
.
(1)
;
(2)求
;
(3)若
与
垂直,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231b861d6d1f1d0b9f52b041cb40eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6316d995f00623f05fc3d56a6cbe5f00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34fa8ea29001bb1f0c1e5157aff2fca5.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c39d1d88189726ae99c309644fca3494.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ad31f4e349a176c04e2ce0e798474a.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cd8bbf47b69bbd7a6263b041290d11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff01c3e3b53271c5d16ad4e02a930ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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5 . 已知平面向量
满足
,
,且
.
(1)求
在
方向上的投影向量;
(2)若
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce9883f16cdef5fb87fb9d6a9897d113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/404067afb19bd74f447a6c0c832af1da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ec2d4fc004e4bf82085e0c1b6e283fa.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cd880815001ddbe3a0722ad8821252c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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3卷引用:山东省青岛第十五中学2023-2024学年高二上学期期初考试数学试题
山东省青岛第十五中学2023-2024学年高二上学期期初考试数学试题安徽省宣城市2022-2023学年高一下学期期末调研测试数学试卷(已下线)8.1.1-8.1.2 向量数量积的概念、向量数量积的运算律-【帮课堂】(人教B版2019必修第三册)
名校
解题方法
6 . 如图,在
中,
,点
是
的中点,设
,
表示
;
(2)如果
,
有什么位置关系?用向量方法证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc718b99fb52f53f988c91d8fc94dbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03ba495e8f9fe02229a4248fdbfb4710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f9ad7fa7ec798539ec313b0641c84fe.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43498074ba57261c0cf8b7125c0853a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d392690845f0d5731bfd924578b0492b.png)
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6卷引用:四川省成都市成飞中学2023-2024学年高二上学期入学考试数学试题
四川省成都市成飞中学2023-2024学年高二上学期入学考试数学试题福建省漳州市2022-2023学年高一下学期期末教学质量检测数学试题(已下线)6.3.1 平面向量基本定理【第二练】“上好三节课,做好三套题“高中数学素养晋级之路(已下线)第06讲 6.3.1平面向量基本定理-【帮课堂】(人教A版2019必修第二册)(已下线)6.3.1 平面向量基本定理——课后作业(提升版)福建省福州第三中学2023-2024学年高一下学期4月期中数学试题
解题方法
7 . 已知向量
与
的夹角为60°,
.
(1)求
的值;
(2)求
为何值时,向量
与
相互垂直.
![](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/d5b9656216369e6cb6f74b9237ad6347.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93af88a7628c71d642d3a6df067c15f5.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0035fcdc6a2dfb5836f4dc93dcaf9386.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed492f7b29166ba5c1f0023b05a439c5.png)
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名校
解题方法
8 . 已知平面向量
、
,
,
,且
与
的夹角为
.
(1)求
;
(2)求
;
(3)若
与
垂直,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96c8c49b6aa91026b40e7402918534a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf342e77c56e55a35bb1151bc215a3a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c39d1d88189726ae99c309644fca3494.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb74499b8965b3f6c9acfbbb168df438.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b83c5803cc8c05849028a57c4bd4ee72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42150f5740324b3dfcc85a9dd15fd15b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2卷引用:四川省乐山市沫若中学2023-2024学年高二上学期开学考试数学试题
22-23高一下·湖北·期末
名校
解题方法
9 . 已知向量
,
满足
,
,则
在
方向上的投影向量为( )
![](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/404067afb19bd74f447a6c0c832af1da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf21fef3026cfe445a855c94cab5c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1afc391105ca04c187e6be5bd77acc78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
A.2 | B.![]() | C.![]() | D.![]() |
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4卷引用:河南省焦作市第十一中学2023-2024学年高二上学期9月月考数学试题
河南省焦作市第十一中学2023-2024学年高二上学期9月月考数学试题(已下线)湖北省新高考联考协作体2022-2023学年高一下学期期末联考数学试题湖北省孝感市重点高中2022-2023学年高一下学期期末联考数学试题安徽省定远中学2022-2023学年高一下学期6月阶段检测数学试卷(三)
名校
解题方法
10 . 已知平面向量
,
,
,
,
,则
的值是______ .
![](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/c7958a6bddd1d578bbd6fbcb92e3f6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0979ead3a09ede4835e7fe77c87850f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7466f3ffa97e826620e45cd4134dea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de0212ab68627919b1d22ac348a3e849.png)
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