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1 . 若圆
与圆
的交点为A,B,则线段AB的垂直平分线的方程是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd767240a603ca0c0db5567707eb704.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a2fa3999ee9d877c35e111ae1a3a47d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-10-22更新
|
1415次组卷
|
6卷引用:四川省内江市第六中学2022届高三下学期仿真考试数学(文科)试题
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2 . 定义域为
的函数
的图象的两个端点为A,B,
是
图象上的任意一点,其中
,向量
,其中O是坐标原点
若不等式
恒成立,则称函数
在
上“k阶线性近似”
若
在
上“k阶线性近似”,则实数k的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eb7f0759565b9d36008d49b627583a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7028a5fa4d781d382ca3b73b74796e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb6cc602f5b22673491f481152b49327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16aff237a786c2bece123185d921bbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d98ad800d7c8aea55819e58b3947e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd06de2ef0e540c75933b8e794eb1fb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eb7f0759565b9d36008d49b627583a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ffc845e4b7e5bb9aa0f4ddf38cd8df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35246b1f7e094e6e7ea093f2f53a1a3f.png)
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3 . 直线
与圆
的交点为整点(横、纵坐标均为整数的点),这样的直线的条数是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86cb619d62d5f4f2dd2fe70628f0d50a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次