名校
1 . 已知向量
,
(
为坐标原点),若动点
满足
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4dc6741e271b4ce33f0406c48333a93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ef42091f21db4d7353074827e712e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/289542670b804bc81f924549035232f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02f2232f758f277a7449faba0871c04.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-04-20更新
|
544次组卷
|
3卷引用:云南省大理州祥云县2019-2020学年高一下学期期末统测数学(理)试题
名校
2 . 在平面直角坐标系
中,已知圆
:
,若等腰直角
的斜边
为圆
的一条弦,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75904431ee7599cfae208a8b61eb0af2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53502463cc76201000e02df314e58769.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af4448a069a477b7a5a81a75d3469fc5.png)
您最近一年使用:0次
2019-12-03更新
|
609次组卷
|
4卷引用:云南省大理白族自治州2019-2020学年高三上学期11月月考数学(理)试题