已知
为坐标原点,平面向量
,
,
,且
(
为实数).当
时,点
的坐标是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65c896f79f198876a3ec576cd4d68ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e37b2af2bf0dc4197f0724f70863e127.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c16b4ec11e9a35c95bdeadbcf70d99e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ec3b1d6ee88dc29ceb3e7ab77cf970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b405f9c363136663e03d2cd403a931d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2017-12-17 17:43:37
|
相似题推荐
单选题
|
适中
(0.65)
解题方法
【推荐1】已知正方形
的边长为
,点
在线段
上,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.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/059da6935c02497e370fa8c5a0b20369.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c28c24bee3d8d73b874f9ad15f7501f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】已知点
,
是坐标原点,点
的坐标满足:
,设
,若
的最大值是4,则
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d295a4cc3a58f9f38ee98337313c81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dd3f4427efd48749d93f98c90aa7573.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bd1fcccc0a3e8da16374e84739d2a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.4 | B.3 | C.2 | D.1 |
您最近一年使用:0次