1 . 已知函数
.
(1)求
在
处的切线方程;
(2)求证:
;
(3)求证:
有且仅有两个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e95a080fa2a6ff8f0dd53a33b830777.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b55ea7dedf9975e5da12f82b78d3fdfa.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2020-04-06更新
|
359次组卷
|
2卷引用:辽宁省沈阳市五校协作体2024届高三上学期期中数学试题
名校
解题方法
2 . 设函数
其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8db0a3dac8bca2febc99a2acf3e5da61.png)
(Ⅰ)若曲线
在点
处切线的倾斜角为
,求
的值;
(Ⅱ)已知导函数
在区间
上存在零点,证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e87c42cd8f8a3bc7524ace6fa5c219.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8db0a3dac8bca2febc99a2acf3e5da61.png)
(Ⅰ)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7028a5fa4d781d382ca3b73b74796e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e460896eb3b3826735ff8b3a1e34f60d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b899be3c4709ec661d84392b167230.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)已知导函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2437d40a85a950a06b1824312ddfd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1147d2996ec1d9f6ed902bfe4376f99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25af360a5be162be8e223b46ac0e9989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e337968a0cd4ab488328a614034e35.png)
您最近一年使用:0次
2020-04-06更新
|
1585次组卷
|
9卷引用:辽宁省部分学校2022-2023学年高二下学期期中考试数学试题
3 . 设函数
,其中
为自然对数的底数,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75beac05ff31987303d0994a3a088162.png)
(1)当
时,讨论函数
的单调性;
(2)若曲线
在
处的切线与
轴平行,证明:对于任意的
,
都有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdf73fbb697d5304215d4b098082a8ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75beac05ff31987303d0994a3a088162.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a49684ba67f71171321586f1a77ad4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d01b783b94032c6075b6216f4b004422.png)
您最近一年使用:0次
名校
4 . 已知函数
.
(1)判断函数
在区间
上零点的个数,并说明理由.
(2)当
时,
①比较
与
的大小关系,并说明理由;
②证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9df075cd20f79486d88d80ee12fc897d.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a3cee5e50ee4f1dfbcf0ff0312fef1b.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c87874458fabe50aff5e19d586d5d94.png)
①比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b8d3f7a166ff5db92d9ee0014a960d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4c7d5aee3615cdb65b3dd4e24da7bc6.png)
②证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8460fe08249b907ea2ff411722360aa1.png)
您最近一年使用:0次
2020-06-08更新
|
765次组卷
|
2卷引用:辽宁省沈阳市第二中学2022-2023学年高三上学期期中数学试题
解题方法
5 . 已知函数
,曲线
在点
处的切线方程为
.
(1)求a的值;
(2)函数
(
为自然对数的底数),证明:对任意的
都有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75c5b5e48448fa5c474f50cbec4c9a78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a34f02ad9e7b210e9c0dd78658ac0ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/512f4c29ff276b7f35052ad4cc255ab5.png)
(1)求a的值;
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9775c7f63b572935984c0bbc2ca2613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966b60302d80d8613675bb3dd5c03164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67b6690ddc40697eefd6cb4fdedfa4a7.png)
您最近一年使用:0次
名校
6 . 已知函数
,
.
(1)若
,求证:当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54cc24a241f295237bdb2fce02771bd2.png)
(2)若不等式
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/597adeb88b25d5b0a57852e5c72d83fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d07f9b89b24792b5e5cc639b399ced.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54cc24a241f295237bdb2fce02771bd2.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50414045ed12fe4da0b6a214a610be75.png)
您最近一年使用:0次
2019-10-23更新
|
793次组卷
|
5卷引用:辽宁师范大学附属中学2019-2020学年高二下学期期中考试数学试题
名校
7 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/051a570985af1d9fcd46bcd3e01b03c6.png)
(1)求
的单调区间;
(2)若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/368e657d8ad0fd9b14b21db3f7369a7c.png)
(i)证明
恰有两个零点;
(ii)设
为
的极值点,
为
的零点,且
证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/051a570985af1d9fcd46bcd3e01b03c6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/368e657d8ad0fd9b14b21db3f7369a7c.png)
(i)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(ii)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64df36fd0b37b72d36fe21e10f5d67f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5595ccc1b475751dd21cbe911231dc75.png)
您最近一年使用:0次
8 . 已知函数
.(
是自然对数的底数,
)
(1)讨论
的单调性,并证明
有且仅有两个零点;
(2)设
是
的一个零点,证明曲线
在点
处的切线也是曲线
的切线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d38b8e1f6add8717790d7ddccf70d0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d218992d1942266d7208e476d0c4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37d42a7476766625db1df17e12985fee.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f2eff609c6043c2a89a6dd163fe2244.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82815582b8332b1ca015352112ee8636.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12be206d66e65eb92ef08bad8cd8f71d.png)
您最近一年使用:0次
名校
9 . 已知函数
在
上是增函数,
在
上是减函数.
(1)求证:当
时,方程
有唯一解;
(2)
时,若
在
时恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9de5dfd4d956751485330e9ef699e0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8fcad7338ba22445542a2acaccc4479.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e8e8ad8d1fc90e8847888a3a08b41dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.png)
(1)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69b49eae4fc3173d7367d4973ee6942.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a1d065b7c597c8eb18bd48a59f05f1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51400ece25f75a79d09cf6cb9a76de1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaae91ed6da60e86e3bb9b3eb7e03e60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
名校
10 . 已知
.
(1)求函数
在定义域上的最小值;
(2)求函数
在
上的最小值;
(3)证明:对一切
,
都成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb3b6c56aee4bb8a8131fd960415c745.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce37d916f185cf89e4d2c35ef7c15d8.png)
(3)证明:对一切
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966b60302d80d8613675bb3dd5c03164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/513ddc07d9b763ed7e1c8055154b8183.png)
您最近一年使用:0次
2019-04-27更新
|
924次组卷
|
5卷引用:【全国百强校】辽宁省师范大学附属中学2019届高三上学期期中考试文科数学试题
【全国百强校】辽宁省师范大学附属中学2019届高三上学期期中考试文科数学试题辽宁省沈阳铁路实验中学2019-2020学年高三上学期10月月考数学(文)试题河南省南阳市2019-2020学年高三上学期期中数学(文)试题黑龙江省鹤岗市第一中学2018-2019学年高二6月月考数学(文)试题(已下线)理科数学-2021年高考考前20天终极冲刺攻略(四)(课标全国卷)(6月5日)