名校
解题方法
1 . 已知函数
.
(1)若
在R上是增函数,求a的取值范围;
(2)若当
时,
有两个极值点m,n,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d9b03785f7e5fa71be4619ef681efb.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3387f1c69de6c2407212536b35150e5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91c679fa336024700988f5a45698f88e.png)
您最近一年使用:0次
2023-05-28更新
|
695次组卷
|
2卷引用:河北省衡水市第二中学2023届高三三模数学试题
2 . 已知
,其中
.
(1)若
,讨论
的单调性;
(2)已知
是
的两个零点,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a63e4d572069fef38d634b8898bcbe5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baca30d4248a82988890bd032d159b25.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62a992bf546c85dc454aa6778ff678f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f103d938e548dfbf56ab600623b3e20d.png)
您最近一年使用:0次
2023-05-25更新
|
1328次组卷
|
3卷引用:河北省石家庄市正中实验中学2024届高三上学期月考(四)数学试题
名校
解题方法
3 . 已知函数
.
(1)若
在
单调递增,求实数m取值范围;
(2)若
有两个极值点
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b837bb7c05ad5b9b3d79b9ca58625aaa.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ba623831ab0ef55efb35923c29824bb.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b725fdc8de9800f2692f6fea8585b1e9.png)
您最近一年使用:0次
2023-05-19更新
|
1268次组卷
|
8卷引用:河北省邯郸市2023届高考三模(保温卷)数学试题
河北省邯郸市2023届高考三模(保温卷)数学试题河北省邯郸市鸡泽县第一中学2022-2023学年高二下学期6月月考数学试题河北省邯郸市鸡泽县第一中学2023-2024学年高二下学期3月月考数学试题北京市东城区北京景山中学2022-2023学年高二下学期6月月考数学试题(已下线)模块二 专题2 《导数》单元检测篇 B提升卷(人教A)(已下线)模块二 专题5 《导数及其应用》单元检测篇 B提升卷(北师大2019版)黑龙江省大庆市肇州县第二中学2022-2023学年高二下学期期中数学试题广东省韶关市永翔实验中学2022-2023学年高二下学期5月月考数学试题
名校
4 . 已知函数
.
(1)
时,求函数
在
处的切线方程;
(2)讨论函数
的单调性;
(3)证明不等式
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f27e242e405cc9cd23b92198e4bbd37.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)证明不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da332f19d8ef4ececad083dbfe14b3bd.png)
您最近一年使用:0次
2023-05-19更新
|
1949次组卷
|
6卷引用:河北省石家庄市北华中学2024届高三上学期期末数学试题
解题方法
5 . 已知函数
.
(1)当
时,证明:
恒成立;
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/583be995041a099a7eb141cf3e79f44f.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0af23fa61d1b13879de2585e7ca2cd81.png)
您最近一年使用:0次
6 . 已知
且
,
,
,
是自然对数的底数,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1424037adc3580da46c8b5e71b8795e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1723fca30a183cf33e20fcd501165e32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/120ed2e0864703edcc22302a94196fbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3506cfcd3e9d6b1468e0f94bf93fa07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
7 . 已知函数
,
,
为自然对数的底数.
(1)证明:函数
存在唯一的极值点
;
(2)在(1)的条件下,若
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90d287924b2a13a9e70ecb6df4fcc6e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ea3ed7016dffc724e898215cd5b1451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
(2)在(1)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45eb31740fad26b78de0fa3044535c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c61cfbfd3bf888856b7dc9b2a84c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ae276bd9ca7eef06f9df7be037ade7f.png)
您最近一年使用:0次
名校
解题方法
8 . 已知函数
.
(1)若
,求
的取值范围;
(2)当
时,记函数
的两个零点为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/043834eedf185e02bb0ad1bc99b7550c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3178765d82706110897df3c015378568.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e9222ffc26c0e6bfbf252ab5d8a520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a851d3b31e708e63a2e3e4dc9588e236.png)
您最近一年使用:0次
2023-05-05更新
|
877次组卷
|
3卷引用:河北省名校2023届高三5月模拟数学试题
9 . 已知函数
.
(1)讨论
的单调性.
(2)若
存在两个零点
,且曲线
在
和
处的切线交于点
.
①求实数
的取值范围;
②证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f642b7715a574bf5b8e3f0ba107110.png)
(1)讨论
![](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/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9df2062940530232ab124a571e951ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb652143b43cc9439a347b2b1dc5cf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b4f86e48e2b0d63c1865c60ed1e4d1.png)
①求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
②证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31cdc61764eef3fbe2dc5fafaa2efb39.png)
您最近一年使用:0次
2023-05-05更新
|
977次组卷
|
8卷引用:河北省部分高中2023届高三下学期4月联考数学试题
10 . 已知函数
,且点
处的切线为
.
(1)求
、
的值,并证明:当
时,
成立;
(2)已知
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a4edb87617f8dd25e703b7dafdd875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf46dc84732526c826d84a71c407ea89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac2802209e9c013526ef93446d77e5b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/206c6223f53f2291075f407c16fb5d84.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3df3795a62416c1ab5501db40c8206a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7837b7ca9625519a6c7e04930639a38.png)
您最近一年使用:0次