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1 . 过抛物线
的焦点F的直线l交抛物线于
两点,点A在x轴上方,O为坐标原点,当
时,直线l斜率的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fee9886f9b3a7c78958fefce34215a24.png)
您最近一年使用:0次
2020-02-27更新
|
97次组卷
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3卷引用:黑龙江省绥化市肇东市第一中学2020-2021学年高二上学期期末数学试题
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2 . 已知变量
,
满足
则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6ac4625526c2f5fed2bf379ccadb263.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ee95ecbe1ecea7d8eb46e54fbc35a45.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-05-31更新
|
2311次组卷
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7卷引用:黑龙江省佳木斯市第一中学2021届高三第六次调研考试数学试卷(理科)