已知
,
,求
的最大值和最小值,并说明取得最大值和最小值时
与
的关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ada434113846f9156faf2a0b8dd844fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098b7c4196046343ade61bb22446d962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a6ba33bce399a92ce3c30ccb7f25ec9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
更新时间:2020-02-05 23:04:59
|
【知识点】 向量加法法则的几何应用解读
相似题推荐
解答题-作图题
|
较易
(0.85)
名校
【推荐1】如图,按下列要求作答.
;
(2)以B为始点,作出
;
(3)若
为单位向量,求
、
和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed492f7b29166ba5c1f0023b05a439c5.png)
(2)以B为始点,作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dded81f919fcdb65ee91711bf5e28c4.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93af88a7628c71d642d3a6df067c15f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54fc3f6eb84df9cda382c357a1606184.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8de281c15aef0169885b0c7277a26f9f.png)
您最近一年使用:0次
解答题-计算题
|
较易
(0.85)
解题方法
【推荐2】化简:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af2a84d169a7c6cdbc2ab78b557e038d.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50b812c2d37941d0bddc3eabb68c7dd6.png)
您最近一年使用:0次