1 . 如图,
,定义平面坐标系
为仿射坐标系,在该仿射坐标系中,任意一点
的斜坐标这样定义:
、
分别为与
轴、
轴正方向同向的单位向量,若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98f8d2c1cd7c5effee065778551052b9.png)
,则规定点
的斜坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/14/355cf388-66dd-402f-947c-bc9c7a7152e0.png?resizew=180)
(1)求以
为圆心,半径为1的圆在该仿射坐标系中的方程;
(2)已知点
的斜坐标为
,点
的斜坐标为
,求直线
在该仿射坐标系中的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e8cafca0adab2a0585529b0ab4abd3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98f8d2c1cd7c5effee065778551052b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82339bb04d6f436b154b95b4bb73a28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0203b006524305c3d8ee0b6c34cd872b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/14/355cf388-66dd-402f-947c-bc9c7a7152e0.png?resizew=180)
(1)求以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f114df5ceabdb7e5fd3fdad4eaf056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccc8350b12974ffc8d06fce36d158f02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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2020-12-03更新
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5卷引用:上海期末真题精选50题(大题压轴版)-2020-2021学年高一数学下册期中期末考试高分直通车(沪教版2020必修第二册)
(已下线)上海期末真题精选50题(大题压轴版)-2020-2021学年高一数学下册期中期末考试高分直通车(沪教版2020必修第二册)上海市徐汇区上海中学2020-2021学年高二上学期期中数学试题(已下线)第19讲压轴综合题(讲义)-【教育机构专用】2021年春季高一数学辅导讲义(沪教版2020必修第二册)(已下线)第8章 平面向量(章节压轴题专练)-2020-2021学年高一数学下册期中期末考试高分直通车(沪教版2020必修第二册)(已下线)第08讲 平面向量的正交分解及坐标表示