1 . 设曲线
:
,若对于任意实数
,直线
与曲线
有且只有一个交点,则
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edd685c38fda0219f2733a349d3d0747.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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2 . 已知
,
为整系数多项式,若
,求
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f26cade8fb52ae18a5258ec4e522e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b3a84b1415ba4e4ce47676b7a4f4f1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d9a5b3195e5f6fa70f47e5218c2d859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f26cade8fb52ae18a5258ec4e522e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b3a84b1415ba4e4ce47676b7a4f4f1d.png)
您最近一年使用:0次
3 . 若
是方程
的两个实数根,则
=_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69d400d0ee58eb69f7643b89ec9e1ffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b548c76689cfaf674ab1f53c1fed421f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d56b703b093032f5e0b4612c76bb06f.png)
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2019-06-17更新
|
657次组卷
|
3卷引用:【校级联考】浙江省2018-2019学年第二学期杭州八联盟期中联考高一年级数学学科试题
4 . 若x、y∈R满足
则
=_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/220e6413037baf8ca6aad782c1be5e57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
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