名校
解题方法
1 . 已知定义在
上的函数
满足当
时,
,当
时,满足
,
(
为常数),则下列叙述中正确的为( )
①当
时,
;
②当
时,函数
的图象与直线
,
在
上的交点个数为
;
③当
时,
在
上恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/463b28e4e736384902d0edb53b240770.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790daaa89fc9d093f45023becf765697.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce72109cd1c6485ad398bcc4c75258a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0aa2ef928b6e3341d0a0dc6d8055b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c293fffb145826fef8aa2bdf6eb4e7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8493a0cd10d3d0399173c04163740a38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f49c4a4dbb963482889afe3ea64ee24.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a72260cd112dd05c5cce84d27c2b88c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/132b1ca2c41474fb3390ce1f7d53188a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86728877e1f121caede38b8d1734ce82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/627a57cd9fdb1f586f35d9825b6bcc0b.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e34f42b3be15518c29e3689c9fe6d6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62b98742ec83184fd84925f310bd15f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b029e85e686623cdef977b2cb1f207a.png)
A.①② | B.②③ | C.①③ | D.①②③ |
您最近一年使用:0次
2020-11-28更新
|
1056次组卷
|
4卷引用:2023年3月河北省普通高中学业水平合格性考试模拟(五)数学试题
名校
2 . 定义在
上的函数
满足
当
时,
若函数
在
内恰有3个零点,则实数m的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a2ae4f50bc74ec59185fa2b65a18e41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/260c98ef7e08a443ba49542a99a19f70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c4715e44e62a2a79ab2445c3dc5655f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f6bc5267b1f62a06cc70e29933829d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-04-01更新
|
1234次组卷
|
4卷引用:河北省定州中学2018届高三下学期第一次月考数学试题2