名校
解题方法
1 . 设函数
.
(1)讨论函数
的单调性;
(2)若
,设
,证明:对任意的
;
(3)在(2)的条件下,证明:当
时,
.
(参考数据:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3ec7ff27675efe87f563c2d7ba38832.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea114667a610f52ba215f7da367a12e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14cf891b773763eeabddd9f56fbd077a.png)
(3)在(2)的条件下,证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56dbb15c65a393eca9436b097f523567.png)
(参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bb0e431babbd6747318a4ec8b71f68f.png)
您最近一年使用:0次
名校
2 . 已知函数
为自然对数的底数).
(1)当
时,判断函数
的单调性和零点个数,并证明你的结论;
(2)当
时,关于x的不等式
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e2160ef1397c2e9af0824f4488a8d8.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acdc12d82e20e4ebc76e5792d4e8e09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92382c9fe8a54d85a03d2d96d6b5d4b3.png)
您最近一年使用:0次
2022-01-21更新
|
1345次组卷
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5卷引用:重庆市南开中学2022届高三下学期高考模拟数学试题
名校
3 . 已知函数
.
(1)若不等式
;对任意
恒成立,求实数
的取值范围;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdc873fc03e6e4d3c4ba02f8b1147b20.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f1a05127c1b5bebb87314366af7cc0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a6330540758a21f46fc7a6d1e6328d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd6c4a563fc7e1b964c90bd305b91a85.png)
您最近一年使用:0次
名校
解题方法
4 . 已知函数
对任意的实数m,n都有
,且当
时,有
恒成立.
(1)求
的值;
(2)求证
在R上为增函数;
(3)若
,
,对任意的
,则关于x的不等式
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/053e4e1dc1431145c998c014b8fc0c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be1d8c6384d7fabddb693b2b7fcdf4a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e38fffbc7ab9882480f4faa72390e23.png)
(2)求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9bf4ec57e9172349be55e4527214acc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2188e898a6af08a1e4f4001001194bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab099277f1ca651f5acca46ca054844c.png)
您最近一年使用:0次
名校
5 . 已知定义在
的奇函数
满足:①
;②对任意
均有
;③对任意
,均有
.
(1)求
的值;
(2)利用定义法证明
在
上单调递减;
(3)若对任意
,恒有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/528597e52afcd661e2aaca97e709ca29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ed85d47b4f488a9b5e211938cc5424.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0aa2ef928b6e3341d0a0dc6d8055b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a28f616b1f56991ee75caae3ac35208b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97d8f51aac18216cabd2b0082dca6090.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d55ef0d1b7ea88d92fd6e1ecebb5f5.png)
(2)利用定义法证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a7a4a037a4dfe973f1eb683d93d799.png)
(3)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf97da45123318474a22828c99d45d41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4864f1ffd5317f2f89c90ffc91ece407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2020-01-30更新
|
1913次组卷
|
2卷引用:重庆市第一中学2019-2020学年高一上学期期末数学试题