已知点
,
,
,点P是直线OC上的动点(O为坐标原点),
.
(1)求
的坐标;
(2)求
在
方向上的投影向量.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56156ec1f6c9a21b387140675d7a9dbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89470068f2cfa4229e471c50065c63ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f63f0bdeade1904c747ec9ef0ff3443.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/382989dd8842938a979bc1c5e815c7b9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee557308fa0f1384b6e724dfed5aeb9f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee557308fa0f1384b6e724dfed5aeb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59719064db2579c7479960ff3c1051cc.png)
21-22高一下·山东聊城·期末 查看更多[4]
山东省聊城市2021-2022学年高一下学期期末数学试题河北省邢台市南和区第一中学2022-2023学年高二上学期开学考试数学试题山东省临沂市费县实验中学2021-2022学年高一下学期期末数学试题(已下线)第六章:平面向量及其应用 重点题型复习(2) - 【题型分类归纳】
更新时间:2022-07-18 07:04:56
|
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐1】在平面直角坐标系xOy中,向量
,
,其中
.
(1)判断向量
,
是否垂直?
(2)若
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa0fc0e69a986bc200d384a86eaf601d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d753db2f3a81e3fc65d7d97043f9a7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a135466eb8ca64d002d0fad36176d1c1.png)
(1)判断向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f76f737b7b8798976327dbbdb662bcb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb70bb0fca51c6da3eca82140e7490f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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适中
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【推荐2】在直角梯形
中,
//
.
;
(2)若
与
共线,求
的值;
(3)若
为
边上的动点(不包括端点),求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e93c7d3dd521f26eda67a4c8a2af4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9ce6e68d37a0f9508e378693c5cc31c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3b3dff6522c24a955ea87891d2a7b25.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/405eedd8483df63eab469ef47c077ce0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5f1b06a56fc382feed28e01f1ad102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf48f651cca3122d69400ddf92494e68.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
解题方法
【推荐1】两个粒子A, B从同一发射源发射出来,在某一时刻,它们的位移分别为
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6945874266214e0e6cbd52bf7fca0c2a.png)
(1)写出此时AB所在直线方程;
(2)计算
在
上的投影向量.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27a0307a2fc48aeef6029c0599dc4bcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6945874266214e0e6cbd52bf7fca0c2a.png)
(1)写出此时AB所在直线方程;
(2)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69c112ea43c99cc6bb74a11d354240d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8788008569785f83ac467e46439d7c4e.png)
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【推荐2】如图,已知O为平面直角坐标系的原点.
,
,
和
的坐标;
(2)求向量
与向量
的夹角;
(3)求向量
在向量
上的投影向量的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f455353f09b4c255f8a5efeb72b9e93c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fefb8aebdd02bf760175f9d3302918b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc9656d8286c4d6fa309d6ae347c89e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef8337706c550bc095d7a2bd872221a1.png)
(2)求向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89265cbe3abc6b966ce8967fead448b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f605ec0729ce6d72237ad662a06862.png)
(3)求向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89265cbe3abc6b966ce8967fead448b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f605ec0729ce6d72237ad662a06862.png)
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