已知向量
,
,若
,则
的最大值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b8f9e4aa8219744b4fa7484b5aa7ec6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98e8493d179942e30e4d26008a88ea9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12976a4d92584494d1c2c714684d45b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f29d5f376c75c41ae6af0c8a8565449.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2017-03-06 11:30:39
|
相似题推荐
单选题
|
较易
(0.85)
【推荐1】已知
,
,
,
四点,则四边形是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2580df219d92f95b0fffc0950d76560e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c56d9b86ac331775206c9230d7ffe7af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f4d0bdfb87211c2362212cacaabf4b.png)
A.梯形 | B.矩形 | C.菱形 | D.正方形 |
您最近一年使用:0次
单选题
|
较易
(0.85)
解题方法
【推荐2】向量
,
,其中
,
且
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d059f3c141a64eaee06366c1c19d7bc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/964976d9d39f8b2c1ef032abd2b37cba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa5aa846a5b7c96fe2ce665eb1ea5f0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b7e12253044b5abff2a56dcd730ced8.png)
A.9 | B.8 | C.7 | D.![]() |
您最近一年使用:0次