已知函数
.
(1)讨论函数
的单调性;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cc6070078ebdd08f159cef21239dccc.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9a741efbdbf73d5d44105797ae0b51.png)
2023·陕西宝鸡·一模 查看更多[3]
更新时间:2022-12-26 16:05:27
|
相似题推荐
解答题-问答题
|
较难
(0.4)
名校
【推荐1】函数
.
(1)当
时,判断函数
零点个数;
(2)当
时,不等式
恒成立,求
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1636fd76565a876fee48e28115e65f25.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fb40a36a293471742ce75f6b9635b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cf32d986b2a0319c595a1eb9649af6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】已知函数
.
(1)判断
的单调性,并比较
与
的大小;
(2)若函数
,其中
,判断
的零点的个数,并说明理由.
参考数据:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07b26f55c7c29644dfe0277d3e2adf10.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7526dab25cbf8489567f1d92aa71ee32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2748b5620b52169c5cf05c8df92f7340.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc138ac692a8628f521dc7de923d1777.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6da44073eda402265e5f4812bdcfb065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35b7cfcc147916ae7eeb5d557fea945e.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
【推荐1】已知函数
.
(1)试判断函数
的单调性;
(2)若函数
在
上有且仅有一个零点,
①求证:此零点是
的极值点;
②求证:
.
(本题可能会用到的数据:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdc873fc03e6e4d3c4ba02f8b1147b20.png)
(1)试判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/066545d533a4f683794e311d3ccf4f0a.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c38bd8d7a840f2d96f45406c9fb843dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
①求证:此零点是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
②求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf3a0e4fd597d2bb0c25070aa45f049.png)
(本题可能会用到的数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2acf9e90fc3581e8698100d30706c3e6.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
名校
【推荐2】设函数
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37b97b295f88972ba1c7e3cefda0885d.png)
(1)求
的单调递增区间;
(2)当
,
时,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41871dc9be39a31c7aa41ca9f7a62331.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37b97b295f88972ba1c7e3cefda0885d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5c0a8155f5a6af42d37856f6c95a0bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7620c5d02684cad4b4c40124d93afb86.png)
您最近一年使用:0次