1 . 在平面直角坐标系中,O为原点,
,动点D满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686eb99907e2215427329045d542fb91.png)
的最大值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f40a40bdbdaa60d0264a7f1b2e1b41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686eb99907e2215427329045d542fb91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89ecef832862d7ff7704fa7f975bdd48.png)
A.![]() | B.![]() | C.6 | D.5 |
您最近一年使用:0次
2 . 已知向量
,则函数
的最小正周期与最大值分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/941e984bbbb651b4af4b0b2853f8e3f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
A.![]() | B.![]() | C.6 | D.5 |
A.![]() | B.![]() |
C.![]() | D.![]() |