1 . 设
,则当
时,( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02077462b7ef355365116b6f7f0def9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e19b0bab10e2e846ea078b7bdd0de9f.png)
A.u的最小值为1 | B.u的最大值为2 |
C.u的最小值为0 | D.u的最大值为3 |
您最近一年使用:0次
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2 . 已知
,
,
,
的外接圆为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0929421a6188c3122442866b0b85a5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1e5eea5f7f98ca8632358b7e49ceb25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa433c7f879181697b73c751605d394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
A.点![]() ![]() | B.![]() ![]() |
C.点![]() ![]() | D.直线![]() ![]() |
您最近一年使用:0次
2023-01-03更新
|
258次组卷
|
2卷引用:北京市2023届高三“极光杯”跨年线上测试数学试题