1 . 如图为函数
的部分图象,
分别为图象的最高点和最低点,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da34cb6c9462e0e98441c7cb341d40bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da6b93dbe5272a5167ff4e2918bec864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f962932817e7a1d622e0608a4484af2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9448bf1d6136b3a108e7ea60506ad39.png)
A.![]() | B. ![]() | C. ![]() | D.![]() |
您最近一年使用:0次
解题方法
2 . 已知平面向量
、
满足
,
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/082c6926889f84f438ea35f70bf05f02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c387ef31c0aacbd151adb36ba76a102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56ac04973c32e5543ab3e19aa62b75c0.png)
您最近一年使用:0次