名校
解题方法
1 . 已知函数
.
(1)求函数
的最小值;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ae309841b3cffa828d8b1537f6ed81.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c7914c666a4e4dc6a0ff76f01c47d6.png)
您最近一年使用:0次
2 . 设函数
的定义域为I,若
,曲线
在
处的切线l与曲线
有n个公共点,则称
为函数
的“n度点”,切线l为一条“n度切线”.
(1)判断点
是否为函数
的“2度点”,说明理由;
(2)设函数
.
①直线
是函数
的一条“1度切线”,求a的值;
②若
,求函数
的“1度点”.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f5a90aeba435af22d6bcdb7b91650b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b359345c5afa1739bf5ebf8982e1d959.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f5a90aeba435af22d6bcdb7b91650b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f5a90aeba435af22d6bcdb7b91650b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f16fb94e679867d1aeab1b81a9765a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
(1)判断点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b969fe0f970a6605c114953c88d9d71e.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1b7742abf1c609b8a4cc5c2dcc05814.png)
①直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0e212cdbfba6610bc55df2c1a737407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
您最近一年使用:0次
3 . 已知函数
.
(1)讨论函数
的单调性;
(2)当
时,数列
满足
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c6aa8089b5d9b722aff679af3c4d289.png)
①求证:
;
②求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0730ea5a5d9d25f1c012a78b390e8bc4.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c6aa8089b5d9b722aff679af3c4d289.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c101acd1f4d2d79055068877921c2b5d.png)
②求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/984992c5bb21f9ac5bdaad6c228f2e25.png)
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解题方法
4 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)当
时,求使
恒成立的最大偶数
.
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db26990def13099db22a6630a84b71f.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9807631136840cb8da536aae933cbedf.png)
您最近一年使用:0次
解题方法
5 . 已知函数
.
(1)证明:若
,则
;
(2)证明:若
有两个零点
,
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6102ca4dcd95bc834a251e0c51ffd0e.png)
(1)证明:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9673d1b326a5bbcd5105037398e9530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
(2)证明:若
![](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/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b725fdc8de9800f2692f6fea8585b1e9.png)
您最近一年使用:0次
解题方法
6 . 已知函数
的图象关于直线
对称,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe96db99f0262166adaaeeaa7d5adbb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
名校
7 . 已知函数
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f39a48a61617d9136fc86158c3ee3c70.png)
A.曲线![]() ![]() |
B.![]() ![]() |
C.当![]() ![]() |
D.当![]() ![]() |
您最近一年使用:0次
2022-11-27更新
|
612次组卷
|
4卷引用:辽宁省丹东市五校2022-2023学年高三上学期联考数学试题
辽宁省丹东市五校2022-2023学年高三上学期联考数学试题黑龙江省绥化市海伦市第一中学2022-2023学年高三上学期期中数学试题福建省漳州第一中学2023届高三下学期期初考试数学试题(已下线)第七章 导数与不等式能成立(有解)问题 专题二 单变量不等式能成立(有解)之最值分析法 微点2 单变量不等式能成立(有解)之最值分析法综合训练
8 . 已知函数
.
(1)讨论
的单调性;
(2)当a=1时,若函数
有两个零点,求实数t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80b12da3190983bf4095587a516a71.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当a=1时,若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a15f1a801c814f18a5918782cf40d0e.png)
您最近一年使用:0次
2022-11-19更新
|
542次组卷
|
4卷引用:辽宁省丹东市五校2022-2023学年高三上学期联考数学试题
9 . 已知a>0且函数
.
(1)若
,讨论
的单调性;
(2)当
时,
,求a的取值范围;
(3)设
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/175951574faff0261ad000c45303edf3.png)
(1)若
![](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/e2fb40a36a293471742ce75f6b9635b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f5d3ca71f97c71b0231d4dabef5ca8e.png)
您最近一年使用:0次
名校
10 . 已知函数
有且仅有两个零点
.
(1)求实数
的取值范围;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd615c3640d11a5cb79165cd7adc9985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39c975f44ddb3ba2a07bdaa4f1461fca.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a3ad8c843c361565d0f3cb06da49f60.png)
您最近一年使用:0次
2022-05-31更新
|
372次组卷
|
4卷引用:辽宁省丹东市凤城市第一中学2023年高三上学期10月月考数学试题