解题方法
1 . 若向量
,则
取值范围是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d334afa594cb76ecdc844cb7312b5f91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4d323d3e18562c35bf648ee70340bac.png)
您最近一年使用:0次
名校
2 .
为
所在平面上动点,点
满足
,
,则射线
过
的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76491d7877d61e3687ae0cce5273878c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddf6ba33629128692e0b8c23100415a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
A.外心 | B.内心 | C.重心 | D.垂心 |
您最近一年使用:0次
2019-09-11更新
|
4624次组卷
|
3卷引用:山西省长治市第二中学2018-2019高一下学期期中考试数学试卷