解题方法
1 . 已知函数
.
(1)当
时,求函数
的极值;
(2)若
在区间
上单调递增,试求
的取值或取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9943f4f9b54e1eec1812d2e966d7c82e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed2f490aac02631c2ed9e6b76354a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2 . 已知二次函数
,且不等式
的解集为
,对任意的
,都有
恒成立.
(1)求
的解析式;
(2)若
恰有3个零点,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d662e27c8d7040de69682d9d56048d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cac5b2ba71eebd24b8abbd04ef94101.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d7fb81c2fb79673d13c37c670f02ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55667553d7097be5d1bb3fe8da7e1fda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90860430840f1c47d096cc855435efc.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb788ae88e457017bb81120b6a2e5ee.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3e11cba66ba57ca5678db0f32d44c.png)
您最近一年使用:0次
2022-10-20更新
|
230次组卷
|
2卷引用:江苏省淮安市涟水县第一中学2022-2023学年高三上学期第一次阶段检测数学试题