名校
1 . 已知
,函数
有两个极值点
,则下列说法正确的序号为_________ .
①若
,则函数
在
处的切线方程为
;②m可能是负数;
③
;④若存在
,使得
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92f1d37d41130c72ae150a64ddb2f949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711b21672fd907c5c92fee1d649e7003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf46dc84732526c826d84a71c407ea89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0f7fbfa2214ca72495a993b2fed8b61.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f8f79e938bf77f67440579ad10cb82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f07ad90ca228230b03f12eb48ee0c1d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eaa6773bd23f36a1577f8456ae6ae86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c9c27cc04aca332fb3098228a1119b3.png)
您最近一年使用:0次
2024-02-13更新
|
269次组卷
|
2卷引用:天津市重点校2023-2024学年高二下学期4月期中联考数学试题
2 . 有下列命题:
①抛物线
的准线方程为
;
②已知直线过两点
,
,则此直线的斜率是
;
③若方程
表示双曲线,则实数
的取值范围是
.
其中正确命题的序号为________ (把正确的答案都填上).
①抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db63cef6d8bbb08137d71c6f7b6e741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b650820d7bed48ed67a2869ad8c65ff1.png)
②已知直线过两点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aedad6bb70631b944c69f8f0b02b35d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47153fdd73c0661fa460130082e30929.png)
③若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc5494f7d24f95a721555b85c84e8a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/127aacea765b09f5110b3176493f0dd2.png)
其中正确命题的序号为
您最近一年使用:0次