名校
1 . 已知点A为曲线
上的动点,若以点A为切点的切线的倾斜角为
.则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06907150f91c62f38d57cc3d2a44906e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2 . 过两点
,
的直线的倾斜角为
,则实数
=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5343f6dee6d12906b09ff03166350a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c850811ba59a05e945a665196539a048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.-1 | B.1 |
C.![]() | D.![]() |
您最近一年使用:0次